{ "format": "jobline-shop-reference", "version": "1.3.1", "publishedAt": "https://jobline.ai/reference/jobline-shop-reference.json", "sources": { "tapDrills": "Machinery's Handbook, 31st ed.; ASME B1.1 (Unified), ASME B1.13M (metric)", "rollTapDrills": "Form tap formula at 65% thread (OSG / Emuge form tap guidance); supplier tables are authoritative", "drillSizes": "ASME B94.11M number and letter drill sizes; fractions exact", "npt": "ASME B1.20.1 sizes; tap drills without reaming per Tapco pipe tap chart (OSG agrees)", "cuttingSpeeds": "HSS bands: https://littlemachineshop.com/pages/cutting-speeds; carbide milling SFM and chip loads: https://www.lakeshorecarbide.com/pdf/GENERAL%20PURPOSE%20EM%20SPECS.pdf; turning carbide: Sandvik Coromant turning recommendations by CMC group (https://static.brw.ch/pdf/SandvikDrehen_Schnittdaten.pdf), first coated grade, window = heavy-feed to light-feed speed (machining-core 1.4.0)" }, "tapDrills": [ { "thread": "#1-64", "series": "UNC", "tpi": 64, "pitchMm": 0.3969, "basicMajor": 0.073, "basicPitch": 0.0629, "basicMinor": 0.0538, "units": "in", "tapDrill75": "#53", "tapDrill75Dec": 0.0595, "tapDrill50": "1/16\"", "tapDrill50Dec": 0.0625, "stiTapDrill": "#43", "stiTapDrillDec": 0.089, "stiInsertSize": "#1-64×1D" }, { "thread": "#2-56", "series": "UNC", "tpi": 56, "pitchMm": 0.4536, "basicMajor": 0.086, "basicPitch": 0.0744, "basicMinor": 0.0641, "units": "in", "tapDrill75": "#50", "tapDrill75Dec": 0.07, "tapDrill50": "#49", "tapDrill50Dec": 0.073, "stiTapDrill": "#41", "stiTapDrillDec": 0.096, "stiInsertSize": "#2-56×1D" }, { "thread": "#3-48", "series": "UNC", "tpi": 48, "pitchMm": 0.5292, "basicMajor": 0.099, "basicPitch": 0.0855, "basicMinor": 0.0734, "units": "in", "tapDrill75": "#47", "tapDrill75Dec": 0.0785, "tapDrill50": "#44", "tapDrill50Dec": 0.086, "stiTapDrill": "#37", "stiTapDrillDec": 0.104, "stiInsertSize": "#3-48×1D" }, { "thread": "#4-40", "series": "UNC", "tpi": 40, "pitchMm": 0.635, "basicMajor": 0.112, "basicPitch": 0.0958, "basicMinor": 0.0813, "units": "in", "tapDrill75": "#43", "tapDrill75Dec": 0.089, "tapDrill50": "#41", "tapDrill50Dec": 0.096, "stiTapDrill": "#31", "stiTapDrillDec": 0.12, "stiInsertSize": "#4-40×1D" }, { "thread": "#5-40", "series": "UNC", "tpi": 40, "pitchMm": 0.635, "basicMajor": 0.125, "basicPitch": 0.1088, "basicMinor": 0.0943, "units": "in", "tapDrill75": "#38", "tapDrill75Dec": 0.1015, "tapDrill50": "7/64\"", "tapDrill50Dec": 0.1094, "stiTapDrill": "#29", "stiTapDrillDec": 0.136, "stiInsertSize": "#5-40×1D" }, { "thread": "#6-32", "series": "UNC", "tpi": 32, "pitchMm": 0.7938, "basicMajor": 0.138, "basicPitch": 0.1177, "basicMinor": 0.0997, "units": "in", "tapDrill75": "#36", "tapDrill75Dec": 0.1065, "tapDrill50": "#32", "tapDrill50Dec": 0.116, "stiTapDrill": "#25", "stiTapDrillDec": 0.1495, "stiInsertSize": "#6-32×1D" }, { "thread": "#8-32", "series": "UNC", "tpi": 32, "pitchMm": 0.7938, "basicMajor": 0.164, "basicPitch": 0.1437, "basicMinor": 0.1257, "units": "in", "tapDrill75": "#29", "tapDrill75Dec": 0.136, "tapDrill50": "#27", "tapDrill50Dec": 0.144, "stiTapDrill": "#18", "stiTapDrillDec": 0.1695, "stiInsertSize": "#8-32×1D" }, { "thread": "#10-24", "series": "UNC", "tpi": 24, "pitchMm": 1.0583, "basicMajor": 0.19, "basicPitch": 0.1629, "basicMinor": 0.1389, "units": "in", "tapDrill75": "#25", "tapDrill75Dec": 0.1495, "tapDrill50": "#20", "tapDrill50Dec": 0.161, "stiTapDrill": "#10", "stiTapDrillDec": 0.1935, "stiInsertSize": "#10-24×1D" }, { "thread": "1/4-20", "series": "UNC", "tpi": 20, "pitchMm": 1.27, "basicMajor": 0.25, "basicPitch": 0.2175, "basicMinor": 0.1887, "units": "in", "tapDrill75": "#7", "tapDrill75Dec": 0.201, "tapDrill50": "7/32\"", "tapDrill50Dec": 0.2188, "stiTapDrill": "F", "stiTapDrillDec": 0.257, "stiInsertSize": "1/4-20×1D" }, { "thread": "5/16-18", "series": "UNC", "tpi": 18, "pitchMm": 1.4111, "basicMajor": 0.3125, "basicPitch": 0.2764, "basicMinor": 0.2443, "units": "in", "tapDrill75": "F", "tapDrill75Dec": 0.257, "tapDrill50": "J", "tapDrill50Dec": 0.277, "stiTapDrill": "Q", "stiTapDrillDec": 0.332, "stiInsertSize": "5/16-18×1D" }, { "thread": "3/8-16", "series": "UNC", "tpi": 16, "pitchMm": 1.5875, "basicMajor": 0.375, "basicPitch": 0.3344, "basicMinor": 0.2983, "units": "in", "tapDrill75": "5/16\"", "tapDrill75Dec": 0.3125, "tapDrill50": "Q", "tapDrill50Dec": 0.332, "stiTapDrill": "25/64\"", "stiTapDrillDec": 0.3906, "stiInsertSize": "3/8-16×1D" }, { "thread": "7/16-14", "series": "UNC", "tpi": 14, "pitchMm": 1.8143, "basicMajor": 0.4375, "basicPitch": 0.3911, "basicMinor": 0.3499, "units": "in", "tapDrill75": "U", "tapDrill75Dec": 0.368, "tapDrill50": "25/64\"", "tapDrill50Dec": 0.3906, "stiTapDrill": "29/64\"", "stiTapDrillDec": 0.4531, "stiInsertSize": "7/16-14×1D" }, { "thread": "1/2-13", "series": "UNC", "tpi": 13, "pitchMm": 1.9538, "basicMajor": 0.5, "basicPitch": 0.45, "basicMinor": 0.4056, "units": "in", "tapDrill75": "27/64\"", "tapDrill75Dec": 0.4219, "tapDrill50": "29/64\"", "tapDrill50Dec": 0.4531, "stiTapDrill": "33/64\"", "stiTapDrillDec": 0.5156, "stiInsertSize": "1/2-13×1D" }, { "thread": "5/8-11", "series": "UNC", "tpi": 11, "pitchMm": 2.3091, "basicMajor": 0.625, "basicPitch": 0.566, "basicMinor": 0.5135, "units": "in", "tapDrill75": "17/32\"", "tapDrill75Dec": 0.5312, "tapDrill50": "9/16\"", "tapDrill50Dec": 0.5625, "stiTapDrill": "41/64\"", "stiTapDrillDec": 0.6406, "stiInsertSize": "5/8-11×1D" }, { "thread": "3/4-10", "series": "UNC", "tpi": 10, "pitchMm": 2.54, "basicMajor": 0.75, "basicPitch": 0.685, "basicMinor": 0.6273, "units": "in", "tapDrill75": "21/32\"", "tapDrill75Dec": 0.6562, "tapDrill50": "11/16\"", "tapDrill50Dec": 0.6875, "stiTapDrill": "49/64\"", "stiTapDrillDec": 0.7656, "stiInsertSize": "3/4-10×1D" }, { "thread": "7/8-9", "series": "UNC", "tpi": 9, "pitchMm": 2.8222, "basicMajor": 0.875, "basicPitch": 0.8028, "basicMinor": 0.7387, "units": "in", "tapDrill75": "49/64\"", "tapDrill75Dec": 0.7656, "tapDrill50": "51/64\"", "tapDrill50Dec": 0.7969, "stiTapDrill": "57/64\"", "stiTapDrillDec": 0.8906, "stiInsertSize": "7/8-9×1D" }, { "thread": "1\"-8", "series": "UNC", "tpi": 8, "pitchMm": 3.175, "basicMajor": 1, "basicPitch": 0.9188, "basicMinor": 0.8466, "units": "in", "tapDrill75": "7/8\"", "tapDrill75Dec": 0.875, "tapDrill50": "59/64\"", "tapDrill50Dec": 0.9219, "stiTapDrill": "1-1/64\"", "stiTapDrillDec": 1.0156, "stiInsertSize": "1\"-8×1D" }, { "thread": "#0-80", "series": "UNF", "tpi": 80, "pitchMm": 0.3175, "basicMajor": 0.06, "basicPitch": 0.0519, "basicMinor": 0.0447, "units": "in", "tapDrill75": "3/64\"", "tapDrill75Dec": 0.0469, "tapDrill50": "#55", "tapDrill50Dec": 0.052, "stiTapDrill": "#49", "stiTapDrillDec": 0.073, "stiInsertSize": "#0-80×1D" }, { "thread": "#1-72", "series": "UNF", "tpi": 72, "pitchMm": 0.3528, "basicMajor": 0.073, "basicPitch": 0.064, "basicMinor": 0.056, "units": "in", "tapDrill75": "#53", "tapDrill75Dec": 0.0595, "tapDrill50": "#52", "tapDrill50Dec": 0.0635, "stiTapDrill": "#45", "stiTapDrillDec": 0.082, "stiInsertSize": "#1-72×1D" }, { "thread": "#2-64", "series": "UNF", "tpi": 64, "pitchMm": 0.3969, "basicMajor": 0.086, "basicPitch": 0.0759, "basicMinor": 0.0668, "units": "in", "tapDrill75": "#50", "tapDrill75Dec": 0.07, "tapDrill50": "#48", "tapDrill50Dec": 0.076, "stiTapDrill": "#42", "stiTapDrillDec": 0.0935, "stiInsertSize": "#2-64×1D" }, { "thread": "#4-48", "series": "UNF", "tpi": 48, "pitchMm": 0.5292, "basicMajor": 0.112, "basicPitch": 0.0985, "basicMinor": 0.0864, "units": "in", "tapDrill75": "#42", "tapDrill75Dec": 0.0935, "tapDrill50": "#40", "tapDrill50Dec": 0.098, "stiTapDrill": "#27", "stiTapDrillDec": 0.144, "stiInsertSize": "#4-48×1D" }, { "thread": "#6-40", "series": "UNF", "tpi": 40, "pitchMm": 0.635, "basicMajor": 0.138, "basicPitch": 0.1218, "basicMinor": 0.1073, "units": "in", "tapDrill75": "#33", "tapDrill75Dec": 0.113, "tapDrill50": "#31", "tapDrill50Dec": 0.12, "stiTapDrill": "#19", "stiTapDrillDec": 0.166, "stiInsertSize": "#6-40×1D" }, { "thread": "#8-36", "series": "UNF", "tpi": 36, "pitchMm": 0.7056, "basicMajor": 0.164, "basicPitch": 0.146, "basicMinor": 0.1299, "units": "in", "tapDrill75": "#29", "tapDrill75Dec": 0.136, "tapDrill50": "#26", "tapDrill50Dec": 0.147, "stiTapDrill": "#13", "stiTapDrillDec": 0.185, "stiInsertSize": "#8-36×1D" }, { "thread": "#10-32", "series": "UNF", "tpi": 32, "pitchMm": 0.7938, "basicMajor": 0.19, "basicPitch": 0.1697, "basicMinor": 0.1517, "units": "in", "tapDrill75": "#21", "tapDrill75Dec": 0.159, "tapDrill50": "#18", "tapDrill50Dec": 0.1695, "stiTapDrill": "#3", "stiTapDrillDec": 0.213, "stiInsertSize": "#10-32×1D" }, { "thread": "1/4-28", "series": "UNF", "tpi": 28, "pitchMm": 0.9071, "basicMajor": 0.25, "basicPitch": 0.2268, "basicMinor": 0.2062, "units": "in", "tapDrill75": "#3", "tapDrill75Dec": 0.213, "tapDrill50": "#1", "tapDrill50Dec": 0.228, "stiTapDrill": "H", "stiTapDrillDec": 0.266, "stiInsertSize": "1/4-28×1D" }, { "thread": "5/16-24", "series": "UNF", "tpi": 24, "pitchMm": 1.0583, "basicMajor": 0.3125, "basicPitch": 0.2854, "basicMinor": 0.2614, "units": "in", "tapDrill75": "I", "tapDrill75Dec": 0.272, "tapDrill50": "9/32\"", "tapDrill50Dec": 0.2812, "stiTapDrill": "S", "stiTapDrillDec": 0.348, "stiInsertSize": "5/16-24×1D" }, { "thread": "3/8-24", "series": "UNF", "tpi": 24, "pitchMm": 1.0583, "basicMajor": 0.375, "basicPitch": 0.3479, "basicMinor": 0.3239, "units": "in", "tapDrill75": "Q", "tapDrill75Dec": 0.332, "tapDrill50": "S", "tapDrill50Dec": 0.348, "stiTapDrill": "27/64\"", "stiTapDrillDec": 0.4219, "stiInsertSize": "3/8-24×1D" }, { "thread": "7/16-20", "series": "UNF", "tpi": 20, "pitchMm": 1.27, "basicMajor": 0.4375, "basicPitch": 0.405, "basicMinor": 0.3762, "units": "in", "tapDrill75": "25/64\"", "tapDrill75Dec": 0.3906, "tapDrill50": "Y", "tapDrill50Dec": 0.404, "stiTapDrill": "31/64\"", "stiTapDrillDec": 0.4844, "stiInsertSize": "7/16-20×1D" }, { "thread": "1/2-20", "series": "UNF", "tpi": 20, "pitchMm": 1.27, "basicMajor": 0.5, "basicPitch": 0.4675, "basicMinor": 0.4387, "units": "in", "tapDrill75": "29/64\"", "tapDrill75Dec": 0.4531, "tapDrill50": "15/32\"", "tapDrill50Dec": 0.4688, "stiTapDrill": "35/64\"", "stiTapDrillDec": 0.5469, "stiInsertSize": "1/2-20×1D" }, { "thread": "9/16-18", "series": "UNF", "tpi": 18, "pitchMm": 1.4111, "basicMajor": 0.5625, "basicPitch": 0.5264, "basicMinor": 0.4943, "units": "in", "tapDrill75": "33/64\"", "tapDrill75Dec": 0.5156, "tapDrill50": "17/32\"", "tapDrill50Dec": 0.5312, "stiTapDrill": "39/64\"", "stiTapDrillDec": 0.6094, "stiInsertSize": "9/16-18×1D" }, { "thread": "3/4-16", "series": "UNF", "tpi": 16, "pitchMm": 1.5875, "basicMajor": 0.75, "basicPitch": 0.7094, "basicMinor": 0.6733, "units": "in", "tapDrill75": "11/16\"", "tapDrill75Dec": 0.6875, "tapDrill50": "45/64\"", "tapDrill50Dec": 0.7031, "stiTapDrill": "53/64\"", "stiTapDrillDec": 0.8281, "stiInsertSize": "3/4-16×1D" }, { "thread": "M3×0.5", "series": "Metric", "pitchMm": 0.5, "basicMajor": 3, "basicPitch": 2.675, "basicMinor": 2.459, "units": "mm", "tapDrill75": "2.5mm", "tapDrill75Dec": 2.5, "tapDrill50": "2.7mm", "tapDrill50Dec": 2.7, "stiTapDrill": "3.4mm", "stiTapDrillDec": 3.4, "stiInsertSize": "M3×0.5×1D" }, { "thread": "M4×0.7", "series": "Metric", "pitchMm": 0.7, "basicMajor": 4, "basicPitch": 3.545, "basicMinor": 3.242, "units": "mm", "tapDrill75": "3.3mm", "tapDrill75Dec": 3.3, "tapDrill50": "3.5mm", "tapDrill50Dec": 3.5, "stiTapDrill": "4.5mm", "stiTapDrillDec": 4.5, "stiInsertSize": "M4×0.7×1D" }, { "thread": "M5×0.8", "series": "Metric", "pitchMm": 0.8, "basicMajor": 5, "basicPitch": 4.48, "basicMinor": 4.134, "units": "mm", "tapDrill75": "4.2mm", "tapDrill75Dec": 4.2, "tapDrill50": "4.5mm", "tapDrill50Dec": 4.5, "stiTapDrill": "5.6mm", "stiTapDrillDec": 5.6, "stiInsertSize": "M5×0.8×1D" }, { "thread": "M6×1.0", "series": "Metric", "pitchMm": 1, "basicMajor": 6, "basicPitch": 5.35, "basicMinor": 4.917, "units": "mm", "tapDrill75": "5.0mm", "tapDrill75Dec": 5, "tapDrill50": "5.4mm", "tapDrill50Dec": 5.4, "stiTapDrill": "6.7mm", "stiTapDrillDec": 6.7, "stiInsertSize": "M6×1.0×1D" }, { "thread": "M8×1.25", "series": "Metric", "pitchMm": 1.25, "basicMajor": 8, "basicPitch": 7.188, "basicMinor": 6.647, "units": "mm", "tapDrill75": "6.8mm", "tapDrill75Dec": 6.8, "tapDrill50": "7.2mm", "tapDrill50Dec": 7.2, "stiTapDrill": "9.0mm", "stiTapDrillDec": 9, "stiInsertSize": "M8×1.25×1D" }, { "thread": "M10×1.5", "series": "Metric", "pitchMm": 1.5, "basicMajor": 10, "basicPitch": 9.026, "basicMinor": 8.376, "units": "mm", "tapDrill75": "8.5mm", "tapDrill75Dec": 8.5, "tapDrill50": "9.0mm", "tapDrill50Dec": 9, "stiTapDrill": "10.7mm", "stiTapDrillDec": 10.7, "stiInsertSize": "M10×1.5×1D" }, { "thread": "M12×1.75", "series": "Metric", "pitchMm": 1.75, "basicMajor": 12, "basicPitch": 10.863, "basicMinor": 10.106, "units": "mm", "tapDrill75": "10.2mm", "tapDrill75Dec": 10.2, "tapDrill50": "10.9mm", "tapDrill50Dec": 10.9, "stiTapDrill": "12.8mm", "stiTapDrillDec": 12.8, "stiInsertSize": "M12×1.75×1D" }, { "thread": "M14×2.0", "series": "Metric", "pitchMm": 2, "basicMajor": 14, "basicPitch": 12.701, "basicMinor": 11.835, "units": "mm", "tapDrill75": "12.0mm", "tapDrill75Dec": 12, "tapDrill50": "12.7mm", "tapDrill50Dec": 12.7, "stiTapDrill": "15.0mm", "stiTapDrillDec": 15, "stiInsertSize": "M14×2.0×1D" }, { "thread": "M16×2.0", "series": "Metric", "pitchMm": 2, "basicMajor": 16, "basicPitch": 14.701, "basicMinor": 13.835, "units": "mm", "tapDrill75": "14.0mm", "tapDrill75Dec": 14, "tapDrill50": "14.75mm", "tapDrill50Dec": 14.75, "stiTapDrill": "17.0mm", "stiTapDrillDec": 17, "stiInsertSize": "M16×2.0×1D" }, { "thread": "M20×2.5", "series": "Metric", "pitchMm": 2.5, "basicMajor": 20, "basicPitch": 18.376, "basicMinor": 17.294, "units": "mm", "tapDrill75": "17.5mm", "tapDrill75Dec": 17.5, "tapDrill50": "18.5mm", "tapDrill50Dec": 18.5, "stiTapDrill": "21.5mm", "stiTapDrillDec": 21.5, "stiInsertSize": "M20×2.5×1D" }, { "thread": "M24×3.0", "series": "Metric", "pitchMm": 3, "basicMajor": 24, "basicPitch": 22.051, "basicMinor": 20.752, "units": "mm", "tapDrill75": "21.0mm", "tapDrill75Dec": 21, "tapDrill50": "22.0mm", "tapDrill50Dec": 22, "stiTapDrill": "25.5mm", "stiTapDrillDec": 25.5, "stiInsertSize": "M24×3.0×1D" } ], "rollTapDrills": [ { "thread": "#1-64", "series": "UNC", "units": "in", "drillExact": 0.0661, "drill": "#51", "drillDec": 0.067 }, { "thread": "#2-56", "series": "UNC", "units": "in", "drillExact": 0.0781, "drill": "5/64", "drillDec": 0.078125 }, { "thread": "#3-48", "series": "UNC", "units": "in", "drillExact": 0.0898, "drill": "#43", "drillDec": 0.089 }, { "thread": "#4-40", "series": "UNC", "units": "in", "drillExact": 0.101, "drill": "#38", "drillDec": 0.1015 }, { "thread": "#5-40", "series": "UNC", "units": "in", "drillExact": 0.114, "drill": "#33", "drillDec": 0.113 }, { "thread": "#6-32", "series": "UNC", "units": "in", "drillExact": 0.1242, "drill": "1/8", "drillDec": 0.125 }, { "thread": "#8-32", "series": "UNC", "units": "in", "drillExact": 0.1502, "drill": "#25", "drillDec": 0.1495 }, { "thread": "#10-24", "series": "UNC", "units": "in", "drillExact": 0.1716, "drill": "11/64", "drillDec": 0.171875 }, { "thread": "1/4-20", "series": "UNC", "units": "in", "drillExact": 0.2279, "drill": "#1", "drillDec": 0.228 }, { "thread": "5/16-18", "series": "UNC", "units": "in", "drillExact": 0.2879, "drill": "L", "drillDec": 0.29 }, { "thread": "3/8-16", "series": "UNC", "units": "in", "drillExact": 0.3474, "drill": "S", "drillDec": 0.348 }, { "thread": "7/16-14", "series": "UNC", "units": "in", "drillExact": 0.4059, "drill": "13/32", "drillDec": 0.40625 }, { "thread": "1/2-13", "series": "UNC", "units": "in", "drillExact": 0.466, "drill": "15/32", "drillDec": 0.46875 }, { "thread": "5/8-11", "series": "UNC", "units": "in", "drillExact": 0.5848, "drill": "37/64", "drillDec": 0.578125 }, { "thread": "3/4-10", "series": "UNC", "units": "in", 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2.375, "tapDrill": "2-13/64", "tapDrillInch": 2.2031 }, { "size": "2-1/2", "tpi": 8, "pipeOd": 2.875, "tapDrill": "2-5/8", "tapDrillInch": 2.625 }, { "size": "3", "tpi": 8, "pipeOd": 3.5, "tapDrill": "3-1/4", "tapDrillInch": 3.25 }, { "size": "3-1/2", "tpi": 8, "pipeOd": 4, "tapDrill": "3-3/4", "tapDrillInch": 3.75 }, { "size": "4", "tpi": 8, "pipeOd": 4.5, "tapDrill": "4-1/4", "tapDrillInch": 4.25 } ], "cuttingSpeeds": [ { "id": "6061", "material": "6061-T6 aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 80, 110 ], "note": "Use sharp, polished edges and reliable chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "7075", "material": "7075-T6 aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 135, 175 ], "note": "Higher strength than 6061; monitor chip adhesion.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "1018", "material": "1018 low-carbon steel", "group": "P · Steel", "condition": "As supplied / normalized", "hardnessHB": [ 110, 180 ], "note": "Low-carbon steel can form a built-up edge.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1045", "material": "1045 medium-carbon steel", "group": "P · Steel", "condition": "Normalized", "hardnessHB": [ 160, 230 ], "note": "Heat treatment changes cutting behavior substantially.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4140", "material": "4140 alloy steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 170, 240 ], "note": "HSS reference family includes resulfurized grades; ordinary 4140 may cut less freely. Verify tooling data.", "millingHssSfm": [ 35, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 70, 200 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4140-qt", "material": "4140 alloy steel · prehardened", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 260, 340 ], "note": "Carbide is preferred. Check actual hardness on the material certificate.", "millingHssSfm": [ 20, 40 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 30, 60 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "304", "material": "304 stainless steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 140, 210 ], "note": "Work-hardens; avoid dwelling or rubbing. Maintain a positive cut.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "316", "material": "316 stainless steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 145, 215 ], "note": "HSS speeds are estimates (316 is not in the published austenitic row). Tough chips and work hardening demand consistent engagement.", "millingHssSfm": [ 40, 60 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 60, 100 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "a2", "material": "A2 tool steel", "group": "P · Steel", "condition": "Annealed only", "hardnessHB": [ 180, 240 ], "note": "Not suitable for hardened A2. Hardened tooling requires supplier-specific data.", "millingHssSfm": [ 40, 50 ], "millingCarbideSfm": [ 150, 400 ], "turningHssSfm": [ 80, 125 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "gray-iron", "material": "Gray cast iron · Class 30", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 160, 240 ], "note": "Abrasive material; control dust. Dry-cut adjustment is not applied to cast iron.", "millingHssSfm": [ 70, 100 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 145, 215 ], "turningCarbideSfm": [ 990, 1450 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "c360", "material": "C360 free-cutting brass", "group": "N · Nonferrous", "condition": "Half-hard", "hardnessHB": [ 80, 150 ], "note": "Use brass-compatible geometry; aggressive rake can grab.", "millingHssSfm": [ 100, 200 ], "millingCarbideSfm": [ 300, 500 ], "turningHssSfm": [ 300, 350 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "12l14", "material": "12L14 free-machining steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 120, 200 ], "note": "Lead-bearing grade; verify material certificate and chip-handling precautions.", "millingHssSfm": [ 110, 140 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 200, 260 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "d2-annealed", "material": "D2 tool steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 255 ], "note": "High carbide content makes this abrasive; do not use annealed data for hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "ductile-iron", "material": "Ductile iron 65-45-12", "group": "K · Cast iron", "condition": "As supplied", "hardnessHB": [ 150, 230 ], "note": "Nodular graphite; matrix and casting skin affect cutting behavior.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 810, 1200 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "c110", "material": "C110 copper", "group": "N · Nonferrous", "condition": "Temper varies", "hardnessHB": [ 40, 110 ], "note": "Ductile chips and adhesion; confirm temper and use appropriate sharp geometry.", "millingCarbideSfm": [ 400, 1000 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "cast-aluminum", "material": "A356 cast aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 60, 100 ], "note": "Silicon content and casting skin affect wear and coating choice.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "ti64", "material": "Ti-6Al-4V titanium · Grade 5", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 280, 360 ], "note": "Low thermal conductivity and high tool-edge temperatures; titanium-specific supplier data required.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 170, 255 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "inconel718", "material": "Inconel 718 nickel alloy", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 160, 250 ], "note": "Age-hardened material needs separate data; work hardening and notch wear are important.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "d2-hard", "material": "D2 hardened tool steel", "group": "H · Hardened steel", "condition": "Hardened · typical 58–62 HRC", "hardnessHB": [ 58, 62 ], "note": "HRC reference only; never converted into HB derating. Verify hardness and supplier hard-machining data." }, { "id": "1006", "material": "1006 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 90, 120 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1008", "material": "1008 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 90, 125 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1010", "material": "1010 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 95, 130 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1015", "material": "1015 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 100, 140 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1020", "material": "1020 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 110, 150 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1022", "material": "1022 Steel", "group": "P · Steel", "condition": "Hot rolled / cold drawn", "hardnessHB": [ 115, 155 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1025", "material": "1025 Steel", "group": "P · Steel", "condition": "Hot rolled", "hardnessHB": [ 115, 160 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "a36", "material": "A36 Steel", "group": "P · Steel", "condition": "Hot rolled plate", "hardnessHB": [ 119, 162 ], "note": "Low-carbon steel: gummy chips and built-up edge at low speed; keep the edge sharp and the speed up.", "millingHssSfm": [ 65, 110 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 125, 215 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "a572-50", "material": "A572 Grade 50 Steel", "group": "P · Steel", "condition": "Hot rolled plate", "hardnessHB": [ 140, 180 ], "note": "HSLA structural plate (C <= 0.23%). Low-carbon chart rows; not named in the HSS chart.", "millingCarbideSfm": [ 250, 500 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "a516-70", "material": "A516 Grade 70 Steel", "group": "P · Steel", "condition": "Normalized plate", "hardnessHB": [ 140, 180 ], "note": "Pressure vessel plate (C <= 0.28%). Low-carbon chart rows; not named in the HSS chart.", "millingCarbideSfm": [ 250, 500 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1030", "material": "1030 Steel", "group": "P · Steel", "condition": "Hot rolled / normalized", "hardnessHB": [ 130, 180 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1035", "material": "1035 Steel", "group": "P · Steel", "condition": "Hot rolled / normalized", "hardnessHB": [ 140, 190 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1040", "material": "1040 Steel", "group": "P · Steel", "condition": "Hot rolled / normalized", "hardnessHB": [ 150, 200 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1042", "material": "1042 Steel", "group": "P · Steel", "condition": "Hot rolled / normalized", "hardnessHB": [ 150, 205 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1050", "material": "1050 Steel", "group": "P · Steel", "condition": "Hot rolled / normalized", "hardnessHB": [ 170, 230 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingHssSfm": [ 25, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 55, 180 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1055", "material": "1055 Steel", "group": "P · Steel", "condition": "Hot rolled", "hardnessHB": [ 180, 230 ], "note": "Medium-carbon steel; heat treatment changes cutting behavior a lot.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 680, 1400 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1060", "material": "1060 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 170, 220 ], "note": "High-carbon steel, annealed. Hardened stock needs ISO H data.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 680, 1400 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1070", "material": "1070 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 175, 225 ], "note": "High-carbon steel, annealed. Hardened stock needs ISO H data.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 680, 1400 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1080", "material": "1080 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "High-carbon steel, annealed. Hardened stock needs ISO H data.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 680, 1400 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1095", "material": "1095 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "High-carbon steel, annealed. Hardened stock needs ISO H data.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 680, 1400 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1117", "material": "1117 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 120, 170 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 115, 130 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 215, 235 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1118", "material": "1118 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 125, 175 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 115, 130 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 215, 235 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1137", "material": "1137 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 160, 210 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 35, 70 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 70, 215 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1141", "material": "1141 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 165, 215 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 35, 70 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 70, 215 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1144", "material": "1144 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 170, 230 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 35, 70 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 70, 215 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "1144-sp", "material": "1144 Stressproof Steel", "group": "P · Steel", "condition": "Stress relieved, cold drawn", "hardnessHB": [ 230, 280 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 35, 70 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 70, 215 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "1212", "material": "1212 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 140, 180 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 130, 140 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 270, 290 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1213", "material": "1213 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 140, 180 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 130, 140 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 270, 290 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1215", "material": "1215 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 140, 180 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 130, 140 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 270, 290 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "11l17", "material": "11L17 Steel", "group": "P · Steel", "condition": "Cold drawn", "hardnessHB": [ 120, 170 ], "note": "Free-machining grade: sulfur (and lead) give short chips and good finish.", "millingHssSfm": [ 110, 140 ], "millingCarbideSfm": [ 250, 500 ], "turningHssSfm": [ 200, 260 ], "turningCarbideSfm": [ 810, 1650 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "4130", "material": "4130 Steel", "group": "P · Steel", "condition": "Annealed / normalized", "hardnessHB": [ 150, 220 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4142", "material": "4142 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 240 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4150", "material": "4150 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 245 ], "note": "Low-alloy steel, annealed or normalized.", "millingHssSfm": [ 35, 100 ], "millingCarbideSfm": [ 200, 400 ], "turningHssSfm": [ 70, 200 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4340", "material": "4340 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 200, 250 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4620", "material": "4620 Steel", "group": "P · Steel", "condition": "Annealed / hot rolled", "hardnessHB": [ 150, 200 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4820", "material": "4820 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 240 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "5120", "material": "5120 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 150, 200 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "5140", "material": "5140 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 170, 230 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "52100", "material": "52100 Steel", "group": "P · Steel", "condition": "Spheroidize annealed", "hardnessHB": [ 180, 220 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 620, 1300 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "6150", "material": "6150 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "8620", "material": "8620 Steel", "group": "P · Steel", "condition": "Annealed / hot rolled", "hardnessHB": [ 150, 200 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "8640", "material": "8640 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "9310", "material": "9310 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 240 ], "note": "Low-alloy steel, annealed or normalized.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "41l40", "material": "41L40 Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "Leaded 4140: freer cutting than plain 4140; same chart rows (no leaded alloy row is published).", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4130-qt", "material": "4130 Steel · Q&T", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 250, 300 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "4340-qt", "material": "4340 Steel · Q&T 28-32 HRC", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 270, 320 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "4340-qt-38", "material": "4340 Steel · Q&T 36-40 HRC", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 330, 370 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 365, 670 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "4140-ht-350", "material": "4140 Steel · Q&T 35-38 HRC", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 330, 360 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 365, 670 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "300m", "material": "300M Steel", "group": "P · Steel", "condition": "Annealed for machining", "hardnessHB": [ 220, 270 ], "note": "Modified 4340, usually machined annealed and hardened after.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 710, 1500 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4150-qt", "material": "4150 Steel · Q&T", "group": "P · Steel", "condition": "Quenched & tempered", "hardnessHB": [ 270, 320 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "8620-qt", "material": "8620 Steel · Q&T core", "group": "P · Steel", "condition": "Quenched & tempered (core)", "hardnessHB": [ 240, 290 ], "note": "Quenched and tempered; check the actual hardness on the certificate.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "a6", "material": "A6 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 200, 240 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingHssSfm": [ 40, 50 ], "millingCarbideSfm": [ 150, 400 ], "turningHssSfm": [ 80, 125 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "d3", "material": "D3 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 210, 250 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "o1", "material": "O1 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 185, 215 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingHssSfm": [ 50, 50 ], "millingCarbideSfm": [ 150, 400 ], "turningHssSfm": [ 125, 125 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "o2", "material": "O2 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 185, 220 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingHssSfm": [ 50, 50 ], "millingCarbideSfm": [ 150, 400 ], "turningHssSfm": [ 125, 125 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "w1", "material": "W1 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 160, 200 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingHssSfm": [ 85, 85 ], "millingCarbideSfm": [ 150, 400 ], "turningHssSfm": [ 180, 180 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "s7", "material": "S7 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "h11", "material": "H11 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 190, 230 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "h13", "material": "H13 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 190, 230 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "m2-annealed", "material": "M2 High-Speed Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 210, 255 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "m42-annealed", "material": "M42 High-Speed Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 230, 270 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "l6", "material": "L6 Tool Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 180, 225 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 500, 980 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "p20", "material": "P20 Mold Steel", "group": "P · Steel", "condition": "Prehardened 28-32 HRC", "hardnessHB": [ 270, 320 ], "note": "Prehardened mold steel; machined as supplied.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 455, 830 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "420-mold", "material": "420 Mold Steel (prehard)", "group": "P · Steel", "condition": "Prehardened 30-34 HRC", "hardnessHB": [ 280, 330 ], "note": "Annealed tool steel. Do not use these values on hardened stock.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 275, 475 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "wcb", "material": "WCB Cast Carbon Steel", "group": "P · Steel", "condition": "As cast / normalized", "hardnessHB": [ 137, 187 ], "note": "Cast steel: sand inclusions and scale on the skin; take the first cut below the skin.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 430, 790 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "lcc", "material": "LCC Cast Carbon Steel", "group": "P · Steel", "condition": "Normalized and tempered", "hardnessHB": [ 140, 190 ], "note": "Cast steel: sand inclusions and scale on the skin; take the first cut below the skin.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 430, 790 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "4130-cast", "material": "4130 Cast Steel", "group": "P · Steel", "condition": "Normalized and tempered", "hardnessHB": [ 180, 230 ], "note": "Cast steel: sand inclusions and scale on the skin; take the first cut below the skin.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 330, 690 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "8630-cast", "material": "8630 Cast Steel", "group": "P · Steel", "condition": "Normalized and tempered", "hardnessHB": [ 190, 240 ], "note": "Cast steel: sand inclusions and scale on the skin; take the first cut below the skin.", "millingCarbideSfm": [ 200, 400 ], "turningCarbideSfm": [ 330, 690 ], "chipLoadIpt": [ 0.0015, 0.0035 ] }, { "id": "high-alloy-cast", "material": "High-Alloy Cast Steel", "group": "P · Steel", "condition": "Annealed", "hardnessHB": [ 200, 250 ], "note": "High-alloy (> 5%) cast steel.", "millingCarbideSfm": [ 150, 400 ], "turningCarbideSfm": [ 295, 600 ], "chipLoadIpt": [ 0.0012, 0.0025 ] }, { "id": "303", "material": "303 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 160, 230 ], "note": "Free-machining austenitic stainless (sulfur added).", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "304l", "material": "304L Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 140, 200 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "302", "material": "302 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "301", "material": "301 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "201", "material": "201 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 170, 230 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "316l", "material": "316L Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 140, 210 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "317l", "material": "317L Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 215 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "321", "material": "321 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 215 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "347", "material": "347 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 215 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingHssSfm": [ 70, 75 ], "millingCarbideSfm": [ 250, 350 ], "turningHssSfm": [ 115, 135 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "309", "material": "309 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 215 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "310", "material": "310 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 215 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "904l", "material": "904L Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Super-austenitic stainless: tougher than 316; lower speeds.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 325, 520 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "254smo", "material": "254 SMO Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "6% Mo super-austenitic stainless.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 325, 520 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "nitronic-50", "material": "Nitronic 50", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 220, 280 ], "note": "High-strength nitrogen-strengthened austenitic stainless.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 325, 520 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "nitronic-60", "material": "Nitronic 60", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 190, 240 ], "note": "Galling-resistant austenitic stainless.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 325, 520 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "cf8", "material": "CF8 Cast Stainless", "group": "M · Stainless", "condition": "Solution annealed", "hardnessHB": [ 140, 190 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 455, 720 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "cf8m", "material": "CF8M Cast Stainless", "group": "M · Stainless", "condition": "Solution annealed", "hardnessHB": [ 150, 200 ], "note": "Austenitic stainless work-hardens: keep a positive cut, never dwell or rub.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 455, 720 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "409", "material": "409 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 130, 180 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "430", "material": "430 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 190 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "430f", "material": "430F Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 190 ], "note": "Free-machining ferritic stainless.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "434", "material": "434 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 190 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "446", "material": "446 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 160, 210 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "410", "material": "410 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 200 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "416", "material": "416 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Free-machining martensitic stainless.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "420", "material": "420 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 180, 230 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "431", "material": "431 Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 200, 260 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "440a", "material": "440A Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 200, 240 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "440c", "material": "440C Stainless Steel", "group": "M · Stainless", "condition": "Annealed", "hardnessHB": [ 210, 250 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 650, 850 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "ca6nm", "material": "CA6NM Cast Stainless", "group": "M · Stainless", "condition": "Normalized and tempered", "hardnessHB": [ 220, 285 ], "note": "Ferritic/martensitic stainless, annealed.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 550, 820 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "410-ht", "material": "410 Stainless Steel · Hardened", "group": "M · Stainless", "condition": "Hardened and tempered", "hardnessHB": [ 280, 360 ], "note": "Hardened or precipitation-hardened stainless; condition decides the data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 275, 475 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "416-ht", "material": "416 Stainless Steel · Hardened", "group": "M · Stainless", "condition": "Hardened and tempered", "hardnessHB": [ 260, 340 ], "note": "Hardened or precipitation-hardened stainless; condition decides the data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 275, 475 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "17-4", "material": "17-4 PH stainless", "group": "M · Stainless", "condition": "Condition A", "hardnessHB": [ 250, 363 ], "note": "Precipitation hardening changes machining behavior; H900/H1150 have their own entries.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 260, 425 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "17-4-h900", "material": "17-4 PH Stainless · H900", "group": "M · Stainless", "condition": "Aged H900 (40-47 HRC)", "hardnessHB": [ 375, 440 ], "note": "Fully aged; harder than the Sandvik 330 HB row, so speeds are derated for hardness.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 260, 425 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "17-4-h1150", "material": "17-4 PH Stainless · H1150", "group": "M · Stainless", "condition": "Overaged H1150", "hardnessHB": [ 270, 320 ], "note": "Hardened or precipitation-hardened stainless; condition decides the data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 260, 425 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "15-5", "material": "15-5 PH Stainless", "group": "M · Stainless", "condition": "Condition A", "hardnessHB": [ 280, 363 ], "note": "Hardened or precipitation-hardened stainless; condition decides the data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 260, 425 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "13-8", "material": "13-8 Mo PH Stainless", "group": "M · Stainless", "condition": "Condition A", "hardnessHB": [ 280, 360 ], "note": "Hardened or precipitation-hardened stainless; condition decides the data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 260, 425 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "17-7", "material": "17-7 PH Stainless", "group": "M · Stainless", "condition": "Condition A", "hardnessHB": [ 180, 230 ], "note": "Condition A machines like an austenitic stainless.", "millingCarbideSfm": [ 250, 350 ], "turningCarbideSfm": [ 620, 950 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "2205", "material": "2205 duplex stainless", "group": "M · Stainless", "condition": "Solution annealed", "hardnessHB": [ 200, 293 ], "note": "High cutting forces and work hardening; use duplex-specific tool data.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 390, 620 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "2507", "material": "2507 Super Duplex Stainless", "group": "M · Stainless", "condition": "Solution annealed", "hardnessHB": [ 240, 310 ], "note": "Duplex stainless: high strength and work hardening; expect higher cutting forces than 316.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 390, 620 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "2101", "material": "LDX 2101 Lean Duplex", "group": "M · Stainless", "condition": "Solution annealed", "hardnessHB": [ 210, 260 ], "note": "Duplex stainless: high strength and work hardening; expect higher cutting forces than 316.", "millingCarbideSfm": [ 200, 300 ], "turningCarbideSfm": [ 470, 720 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "gray-class-20", "material": "Gray Cast Iron · Class 20", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 150, 190 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingHssSfm": [ 70, 100 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 145, 215 ], "turningCarbideSfm": [ 990, 1450 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "gray-class-25", "material": "Gray Cast Iron · Class 25", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 160, 210 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingHssSfm": [ 70, 100 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 145, 215 ], "turningCarbideSfm": [ 990, 1450 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "gray-class-35", "material": "Gray Cast Iron · Class 35", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 190, 230 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingHssSfm": [ 70, 100 ], "millingCarbideSfm": [ 150, 350 ], "turningHssSfm": [ 145, 215 ], "turningCarbideSfm": [ 990, 1450 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "gray-class-40", "material": "Gray Cast Iron · Class 40", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 200, 240 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingHssSfm": [ 70, 100 ], "millingCarbideSfm": [ 100, 300 ], "turningHssSfm": [ 145, 215 ], "turningCarbideSfm": [ 800, 1150 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "gray-class-45", "material": "Gray Cast Iron · Class 45", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 210, 250 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 800, 1150 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "gray-class-50", "material": "Gray Cast Iron · Class 50", "group": "K · Cast iron", "condition": "As cast", "hardnessHB": [ 220, 260 ], "note": "Gray iron: short chips and abrasive dust; usually cut dry with air blast.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 800, 1150 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "ductile-60-40-18", "material": "Ductile Iron 60-40-18", "group": "K · Cast iron", "condition": "Annealed / as cast ferritic", "hardnessHB": [ 140, 180 ], "note": "Nodular (ductile) iron: longer chips than gray iron; matrix decides the speed.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 810, 1200 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "ductile-80-55-06", "material": "Ductile Iron 80-55-06", "group": "K · Cast iron", "condition": "As cast pearlitic", "hardnessHB": [ 190, 260 ], "note": "Nodular (ductile) iron: longer chips than gray iron; matrix decides the speed.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 730, 1050 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "ductile-100-70-03", "material": "Ductile Iron 100-70-03", "group": "K · Cast iron", "condition": "Normalized pearlitic", "hardnessHB": [ 240, 300 ], "note": "Nodular (ductile) iron: longer chips than gray iron; matrix decides the speed.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 730, 1050 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "ductile-120-90-02", "material": "Ductile Iron 120-90-02", "group": "K · Cast iron", "condition": "Quenched and tempered (martensitic)", "hardnessHB": [ 270, 380 ], "note": "Martensitic ductile iron.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 550, 800 ], "chipLoadIpt": [ 0.0015, 0.003 ] }, { "id": "malleable-32510", "material": "Malleable Iron 32510", "group": "K · Cast iron", "condition": "Ferritic", "hardnessHB": [ 110, 156 ], "note": "Malleable iron.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 860, 1250 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "malleable-50005", "material": "Pearlitic Malleable Iron 50005", "group": "K · Cast iron", "condition": "Pearlitic", "hardnessHB": [ 180, 241 ], "note": "Malleable iron.", "millingCarbideSfm": [ 150, 350 ], "turningCarbideSfm": [ 700, 1050 ], "chipLoadIpt": [ 0.002, 0.004 ] }, { "id": "1100", "material": "1100 Aluminum", "group": "N · Nonferrous", "condition": "O / H14", "hardnessHB": [ 23, 35 ], "note": "Soft, gummy pure aluminum: sharp polished tools, high rake.", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "3003", "material": "3003 Aluminum", "group": "N · Nonferrous", "condition": "H14", "hardnessHB": [ 35, 45 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "5052", "material": "5052 Aluminum", "group": "N · Nonferrous", "condition": "H32", "hardnessHB": [ 55, 65 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "5083", "material": "5083 Aluminum", "group": "N · Nonferrous", "condition": "H116 / O", "hardnessHB": [ 70, 85 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "5086", "material": "5086 Aluminum", "group": "N · Nonferrous", "condition": "H32", "hardnessHB": [ 65, 80 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "2011", "material": "2011 Aluminum", "group": "N · Nonferrous", "condition": "T3", "hardnessHB": [ 90, 100 ], "note": "Free-machining aluminum: small broken chips.", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "2014", "material": "2014 Aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 125, 140 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "2024", "material": "2024 Aluminum", "group": "N · Nonferrous", "condition": "T3 / T351", "hardnessHB": [ 110, 130 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "6063", "material": "6063 Aluminum", "group": "N · Nonferrous", "condition": "T5 / T6", "hardnessHB": [ 60, 75 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "6082", "material": "6082 Aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 90, 100 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "7050", "material": "7050 Aluminum", "group": "N · Nonferrous", "condition": "T7451", "hardnessHB": [ 135, 150 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "7068", "material": "7068 Aluminum", "group": "N · Nonferrous", "condition": "T6511", "hardnessHB": [ 150, 175 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "7178", "material": "7178 Aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 150, 170 ], "note": "Wrought aluminum: sharp polished edges, 2-3 flutes, strong chip evacuation.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 500, 1100 ], "turningHssSfm": [ 500, 600 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "mic-6", "material": "MIC-6 Cast Aluminum Plate", "group": "N · Nonferrous", "condition": "Stress relieved cast plate", "hardnessHB": [ 60, 70 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "319", "material": "319 Cast Aluminum", "group": "N · Nonferrous", "condition": "As cast / T6", "hardnessHB": [ 70, 95 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "355", "material": "355 Cast Aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 70, 90 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "380", "material": "A380 Die-Cast Aluminum", "group": "N · Nonferrous", "condition": "As die cast", "hardnessHB": [ 75, 85 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "383", "material": "383 Die-Cast Aluminum", "group": "N · Nonferrous", "condition": "As die cast", "hardnessHB": [ 70, 80 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "413", "material": "413 Die-Cast Aluminum", "group": "N · Nonferrous", "condition": "As die cast", "hardnessHB": [ 75, 85 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "535", "material": "535 Cast Aluminum", "group": "N · Nonferrous", "condition": "As cast", "hardnessHB": [ 60, 75 ], "note": "Cast aluminum: silicon is abrasive; PCD or diamond-coated tools last far longer.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 820, 6550 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "390", "material": "390 Hypereutectic Cast Aluminum", "group": "N · Nonferrous", "condition": "As cast / T6", "hardnessHB": [ 110, 140 ], "note": "16-22% silicon: very abrasive; PCD strongly preferred.", "millingHssSfm": [ 165, 165 ], "millingCarbideSfm": [ 400, 950 ], "turningHssSfm": [ 600, 750 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "4032", "material": "4032 Aluminum", "group": "N · Nonferrous", "condition": "T6", "hardnessHB": [ 115, 125 ], "note": "High-silicon forging alloy (Sandvik 13-15% Si row).", "millingCarbideSfm": [ 500, 1100 ], "turningCarbideSfm": [ 190, 1500 ], "chipLoadIpt": [ 0.0025, 0.0045 ] }, { "id": "c345", "material": "C345 Brass", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 90, 140 ], "note": "Free-cutting copper alloy; zero or slightly positive rake to avoid grabbing.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c385", "material": "C385 Architectural Bronze", "group": "N · Nonferrous", "condition": "As extruded", "hardnessHB": [ 90, 140 ], "note": "Free-cutting copper alloy; zero or slightly positive rake to avoid grabbing.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c145", "material": "C145 Tellurium Copper", "group": "N · Nonferrous", "condition": "H02", "hardnessHB": [ 80, 110 ], "note": "Free-machining copper (tellurium).", "millingCarbideSfm": [ 400, 1000 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c932", "material": "C932 Bearing Bronze", "group": "N · Nonferrous", "condition": "As cast", "hardnessHB": [ 60, 75 ], "note": "Leaded bearing bronze: short chips, easy to machine.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c836", "material": "C836 Leaded Red Brass", "group": "N · Nonferrous", "condition": "As cast", "hardnessHB": [ 55, 70 ], "note": "Free-cutting copper alloy; zero or slightly positive rake to avoid grabbing.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c260", "material": "C260 Cartridge Brass", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 100, 150 ], "note": "Brass with little or no lead: stringier chips than C360.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c464", "material": "C464 Naval Brass", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 120, 160 ], "note": "Brass with little or no lead: stringier chips than C360.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c230", "material": "C230 Red Brass", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 90, 130 ], "note": "Brass with little or no lead: stringier chips than C360.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c272", "material": "C272 Yellow Brass", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 100, 140 ], "note": "Brass with little or no lead: stringier chips than C360.", "millingCarbideSfm": [ 300, 500 ], "turningCarbideSfm": [ 205, 1650 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c101", "material": "C101 Oxygen-Free Copper", "group": "N · Nonferrous", "condition": "H02", "hardnessHB": [ 50, 90 ], "note": "Pure copper is gummy: very sharp, polished, uncoated or DLC edges.", "millingCarbideSfm": [ 400, 1000 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c182", "material": "C182 Chromium Copper", "group": "N · Nonferrous", "condition": "Precipitation hardened", "hardnessHB": [ 130, 170 ], "note": "Pure copper is gummy: very sharp, polished, uncoated or DLC edges.", "millingCarbideSfm": [ 400, 1000 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0025, 0.0035 ] }, { "id": "c172", "material": "C172 Beryllium Copper", "group": "N · Nonferrous", "condition": "Solution annealed / aged", "hardnessHB": [ 180, 380 ], "note": "Beryllium copper: machining dust is toxic; use coolant and extraction.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c954", "material": "C954 Aluminum Bronze", "group": "N · Nonferrous", "condition": "As cast", "hardnessHB": [ 150, 190 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c630", "material": "C630 Nickel Aluminum Bronze", "group": "N · Nonferrous", "condition": "As extruded", "hardnessHB": [ 180, 220 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c510", "material": "C510 Phosphor Bronze", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 120, 170 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c655", "material": "C655 Silicon Bronze", "group": "N · Nonferrous", "condition": "Half hard", "hardnessHB": [ 100, 150 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingHssSfm": [ 30, 80 ], "millingCarbideSfm": [ 250, 400 ], "turningHssSfm": [ 200, 250 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c675", "material": "C675 Manganese Bronze", "group": "N · Nonferrous", "condition": "As extruded", "hardnessHB": [ 130, 180 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingHssSfm": [ 30, 80 ], "millingCarbideSfm": [ 250, 400 ], "turningHssSfm": [ 200, 250 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "c863", "material": "C863 Manganese Bronze (cast)", "group": "N · Nonferrous", "condition": "As cast", "hardnessHB": [ 180, 225 ], "note": "Bronze: alloy and temper vary widely; aluminum bronzes are tough on edges.", "millingCarbideSfm": [ 250, 400 ], "turningCarbideSfm": [ 125, 980 ], "chipLoadIpt": [ 0.0018, 0.003 ] }, { "id": "delrin-acetal", "material": "Delrin (Acetal)", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "acetal-copolymer", "material": "Acetal Copolymer", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "peek", "material": "PEEK", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "peek-gf30", "material": "PEEK 30% Glass-Filled", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Glass-filled: abrasive; diamond-coated tools last longer. Plastics row is for unfilled plastics, treat as a ceiling.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "uhmw", "material": "UHMW Polyethylene", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "hdpe", "material": "HDPE", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "nylon", "material": "Nylon 6/6", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "ptfe", "material": "PTFE (Teflon)", "group": "N · Nonferrous", "condition": "Molded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "pvc", "material": "PVC", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "polycarbonate", "material": "Polycarbonate", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "acrylic", "material": "Acrylic", "group": "N · Nonferrous", "condition": "Cast / extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "abs", "material": "ABS", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "polypropylene", "material": "Polypropylene", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "ultem", "material": "Ultem (PEI)", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "torlon", "material": "Torlon (PAI)", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "pps", "material": "PPS (Ryton)", "group": "N · Nonferrous", "condition": "Extruded", "hardnessHB": [ 0, 0 ], "note": "Plastic: sharp, polished 1-2 flute tools, air blast, keep the feed up so it cuts instead of melting.", "millingCarbideSfm": [ 400, 1000 ], "chipLoadIpt": [ 0.0025, 0.006 ] }, { "id": "inconel-600", "material": "Inconel 600", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-601", "material": "Inconel 601", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 150, 210 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-625", "material": "Inconel 625", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 180, 260 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-718-aged", "material": "Inconel 718 · Aged", "group": "S · Titanium & superalloys", "condition": "Solution treated and aged (36-44 HRC)", "hardnessHB": [ 330, 410 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-x750", "material": "Inconel X-750", "group": "S · Titanium & superalloys", "condition": "Aged", "hardnessHB": [ 280, 360 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-713c", "material": "Inconel 713C (cast)", "group": "S · Titanium & superalloys", "condition": "As cast", "hardnessHB": [ 280, 340 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 60, 190 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "inconel-738", "material": "Inconel 738 (cast)", "group": "S · Titanium & superalloys", "condition": "Cast and aged", "hardnessHB": [ 300, 360 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 60, 190 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "hastelloy-x", "material": "Hastelloy X", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 170, 230 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "hastelloy-c276", "material": "Hastelloy C-276", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 180, 240 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "hastelloy-c22", "material": "Hastelloy C-22", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 180, 240 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "waspaloy", "material": "Waspaloy", "group": "S · Titanium & superalloys", "condition": "Solution treated and aged", "hardnessHB": [ 330, 400 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "rene-41", "material": "René 41", "group": "S · Titanium & superalloys", "condition": "Aged", "hardnessHB": [ 330, 400 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "nimonic-80a", "material": "Nimonic 80A", "group": "S · Titanium & superalloys", "condition": "Aged", "hardnessHB": [ 280, 350 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "monel-400", "material": "Monel 400", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 110, 150 ], "note": "Nickel-copper alloy: gummy, work hardens.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "monel-k500", "material": "Monel K-500", "group": "S · Titanium & superalloys", "condition": "Aged", "hardnessHB": [ 250, 320 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 70, 215 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "incoloy-825", "material": "Incoloy 825", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 140, 200 ], "note": "Nickel superalloy: work hardens, notch wear; consistent engagement and high-pressure coolant.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 75, 235 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "incoloy-800", "material": "Incoloy 800", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 130, 180 ], "note": "Iron-base superalloy.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 180, 395 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "incoloy-800ht", "material": "Incoloy 800HT", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 120, 170 ], "note": "Iron-base superalloy.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 180, 395 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "a286", "material": "A286 Iron-Base Superalloy", "group": "S · Titanium & superalloys", "condition": "Aged", "hardnessHB": [ 250, 320 ], "note": "Iron-base superalloy.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 155, 315 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "a286-annealed", "material": "A286 · Solution Treated", "group": "S · Titanium & superalloys", "condition": "Solution treated", "hardnessHB": [ 140, 200 ], "note": "Iron-base superalloy.", "millingCarbideSfm": [ 100, 300 ], "turningCarbideSfm": [ 180, 395 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "haynes-188", "material": "Haynes 188", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 200, 270 ], "note": "Cobalt-base superalloy: among the hardest to machine; low speeds.", "turningCarbideSfm": [ 95, 295 ] }, { "id": "l605", "material": "L-605 (Haynes 25)", "group": "S · Titanium & superalloys", "condition": "Solution annealed", "hardnessHB": [ 220, 280 ], "note": "Cobalt-base superalloy: among the hardest to machine; low speeds.", "turningCarbideSfm": [ 95, 295 ] }, { "id": "mp35n", "material": "MP35N", "group": "S · Titanium & superalloys", "condition": "Work hardened and aged", "hardnessHB": [ 300, 400 ], "note": "Cobalt-base superalloy: among the hardest to machine; low speeds.", "turningCarbideSfm": [ 85, 265 ] }, { "id": "stellite-6", "material": "Stellite 6 (cast)", "group": "S · Titanium & superalloys", "condition": "As cast", "hardnessHB": [ 380, 440 ], "note": "Cast cobalt-chrome: often ground; turning needs ceramic or CBN.", "turningCarbideSfm": [ 75, 235 ] }, { "id": "ti-grade-1", "material": "Titanium Grade 1 (CP)", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 110, 130 ], "note": "Commercially pure titanium: gummy, low thermal conductivity; sharp edges and coolant.", "millingCarbideSfm": [ 100, 250 ], "turningCarbideSfm": [ 425, 610 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "ti-grade-2", "material": "Titanium Grade 2 (CP)", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 145, 175 ], "note": "Commercially pure titanium: gummy, low thermal conductivity; sharp edges and coolant.", "millingCarbideSfm": [ 100, 250 ], "turningCarbideSfm": [ 425, 610 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "ti-grade-4", "material": "Titanium Grade 4 (CP)", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 190, 220 ], "note": "Commercially pure titanium: gummy, low thermal conductivity; sharp edges and coolant.", "millingCarbideSfm": [ 100, 250 ], "turningCarbideSfm": [ 425, 610 ], "chipLoadIpt": [ 0.001, 0.002 ] }, { "id": "ti64-sta", "material": "Ti-6Al-4V · STA", "group": "S · Titanium & superalloys", "condition": "Solution treated and aged", "hardnessHB": [ 340, 380 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 155, 245 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "ti64-eli", "material": "Ti-6Al-4V ELI (Grade 23)", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 300, 350 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 170, 255 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "ti-6242", "material": "Ti-6Al-2Sn-4Zr-2Mo", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 300, 350 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 170, 255 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "ti-3-2.5", "material": "Ti-3Al-2.5V (Grade 9)", "group": "S · Titanium & superalloys", "condition": "Annealed", "hardnessHB": [ 230, 280 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 170, 255 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "ti-5553", "material": "Ti-5553 Beta Titanium", "group": "S · Titanium & superalloys", "condition": "Solution treated and aged", "hardnessHB": [ 360, 410 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 155, 245 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "ti-10-2-3", "material": "Ti-10V-2Fe-3Al", "group": "S · Titanium & superalloys", "condition": "Solution treated and aged", "hardnessHB": [ 340, 400 ], "note": "Titanium alloy: heat stays in the edge; keep speed low, feed steady, coolant high.", "millingCarbideSfm": [ 80, 220 ], "turningCarbideSfm": [ 155, 245 ], "chipLoadIpt": [ 0.0008, 0.0017 ] }, { "id": "hardened-45", "material": "Hardened Steel · 45 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 43, 47 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "hardened-50", "material": "Hardened Steel · 50 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 48, 52 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "hardened-55", "material": "Hardened Steel · 55 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 53, 57 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "hardened-60", "material": "Hardened Steel · 60 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 58, 62 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "hardened-65", "material": "Hardened Steel · 65 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 63, 67 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "a2-hard", "material": "A2 Tool Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 57-62 HRC", "hardnessHB": [ 57, 62 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "h13-hard", "material": "H13 Tool Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 46-52 HRC", "hardnessHB": [ 46, 52 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "m2-hard", "material": "M2 High-Speed Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 62-65 HRC", "hardnessHB": [ 62, 66 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "o1-hard", "material": "O1 Tool Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 57-62 HRC", "hardnessHB": [ 57, 62 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "s7-hard", "material": "S7 Tool Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 54-58 HRC", "hardnessHB": [ 54, 58 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "52100-hard", "material": "52100 Bearing Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 58-64 HRC", "hardnessHB": [ 58, 64 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "4340-hard", "material": "4340 Steel · Hardened", "group": "H · Hardened steel", "condition": "Hardened 48-53 HRC", "hardnessHB": [ 48, 53 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "8620-case", "material": "8620 Steel · Carburized Case", "group": "H · Hardened steel", "condition": "Carburized and hardened case", "hardnessHB": [ 58, 62 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "440c-hard", "material": "440C Stainless · Hardened", "group": "H · Hardened steel", "condition": "Hardened 56-60 HRC", "hardnessHB": [ 56, 60 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "hardox-400", "material": "Hardox 400 Wear Plate", "group": "H · Hardened steel", "condition": "Quenched plate (~42 HRC)", "hardnessHB": [ 38, 46 ], "note": "Abrasion-resistant plate; harder than Sandvik's 45 HRC row lists for CBN." }, { "id": "chilled-iron", "material": "Chilled Cast Iron", "group": "H · Hardened steel", "condition": "As cast", "hardnessHB": [ 380, 450 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." }, { "id": "ni-hard", "material": "Ni-Hard White Iron", "group": "H · Hardened steel", "condition": "As cast", "hardnessHB": [ 550, 650 ], "note": "Harder than the Sandvik 400 HB chilled-iron row: speeds derated to the limit." }, { "id": "ductile-hard-55", "material": "Ductile Iron · Hardened 55 HRC", "group": "H · Hardened steel", "condition": "Hardened", "hardnessHB": [ 52, 58 ], "note": "Hardened material: CBN or ceramic for turning; solid carbide hard-milling tools need the maker's data." } ] }