
| Series 66, 66CR | Ae | Ap Ae | Vc | D | iameter ( (inch) | D1) | |||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 3/16 | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | ||
| Profile | 635 | RPM | 12937 | 9703 | 6469 | 4851 | 3881 | 3234 | 2426 | ||||
| CARBON STEELS | ≤ 0.05 | ≤ 1 | (508-762) | Fz | 0.0008 | 0.0012 | 0.0022 | 0.0030 | 0.0037 | 0.0038 | 0.0042 | ||
| 1018, 1040, 1080, 1090 10L50 1140 | ≤ 275 Bhn | Feed (ipm) | 72.4 | 81.5 | 99.6 | 131.0 | 129.2 | 135.2 | 112.1 | ||||
| , , , 1212, 12L15, 1525, 1536 | or ≤ 28 HRc | Finish | 762 | RPM | 15524 | 11643 | 7762 | 5822 | 4657 | 3881 | 2911 | ||
| ≤ 0.02 | ≤ 2 | (610-914) | Fz | 0.0006 | 0.0010 | 0.0018 | 0.0024 | 0.0030 | 0.0030 | 0.0034 | |||
| P | Feed (ipm) | 69.5 | 78.2 | 95.6 | 125.7 | 124.1 | 129.8 | 107.6 | |||||
| Pfil | 360 | RPM | 7334 | 5501 | 3667 | 2750 | 2200 | 1834 | 1375 | ||||
| roe | ≤ 0.05 | ≤ 1 | Fz | 0.0006 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | |||
| ALLOY STEELS 4140, 4150, 4320, | ≤ 375 Bhn | (288-432) | Feed (ipm) | 30.8 | 34.7 | 43.6 | 56.9 | 57.4 | 60.5 | 48.4 | |||
| 5120, 5150, 8630, 86L20, 50100 | or ≤ 40 HRc | Finish | 432 | RPM | 8801 | 6601 | 4401 | 3300 | 2640 | 2200 | 1650 | ||
| ≤ 0.02 | ≤ 2 | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | ||||
| (346-518) | Feed (ipm) | 29.6 | 33.3 | 41.9 | 54.7 | 55.1 | 58.1 | 46.5 | |||||
| Pfil | 290 | RPM | 5908 | 4431 | 2954 | 2216 | 1772 | 1477 | 1108 | ||||
| roe | ≤ 0.05 | ≤ 1 | 232348 | Fz | 0.0004 | 0.0006 | 0.0012 | 0.0016 | 0.0020 | 0.0021 | 0.0022 | ||
| TOOL STEELS | ≤ 375 Bhn | (-) | Feed (ipm) | 16.5 | 18.6 | 24.8 | 31.9 | 31.9 | 34.1 | 26.8 | |||
| H A2, D2, H13, L2, M2, P20, S7, T15, W2 | or ≤ 40 HRc | Fiih | 348 | RPM | 7090 | 5317 | 3545 | 2659 | 2127 | 1772 | 1329 | ||
| ns | ≤ 0.02 | ≤ 2 | Fz | 0.0003 | 0.0005 | 0.0010 | 0.0013 | 0.0016 | 0.0017 | 0.0018 | |||
| (278-418) | Feed (ipm) | 15.9 | 17.9 | 23.8 | 30.6 | 30.6 | 32.8 | 25.7 | |||||
| Profile | 705 | RPM | 14363 | 10772 | 7182 | 5386 | 4309 | 3591 | 2693 | ||||
| CAST IRONS | ≤ 0.05 | ≤ 1 | Fz | 0.0008 | 0.0012 | 0.0022 | 0.0030 | 0.0037 | 0.0038 | 0.0042 | |||
| (LOW & MEDIUM ALLOY | ≤ 220 Bhn | (564-846) | Feed (ipm) | 80.4 | 90.5 | 110.6 | 145.4 | 143.5 | 150.1 | 124.4 | |||
| ) Gray, Malleable, Dil | or ≤ 19 HRc | Finish | 846 | RPM | 17236 | 12927 | 8618 | 6463 | 5171 | 4309 | 3232 | ||
| ucte | ≤ 0.02 | ≤ 2 | Fz | 0.0006 | 0.0010 | 0.0018 | 0.0024 | 0.0030 | 0.0030 | 0.0034 | |||
| (677-1015) | Feed (ipm) | 77.2 | 86.9 | 106.2 | 139.6 | 137.7 | 144.1 | 119.4 | |||||
| K | Pfil | 540 | RPM | 11002 | 8251 | 5501 | 4126 | 3300 | 2750 | 2063 | |||
| roe | ≤ 0.05 | ≤ 1 | (432648) | Fz | 0.0006 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | ||
| CAST IRONS (HIGH ALLOY) | ≤ 260 Bhn | - | Feed (ipm) | 46.2 | 52.0 | 65.5 | 85.4 | 86.1 | 90.8 | 72.6 | |||
| Gray, Malleable, Ductile | or ≤ 26 HRc | Finish | 648 | RPM | 13202 | 9901 | 6601 | 4951 | 3961 | 3300 | 2475 | ||
| ≤ 0.02 | ≤ 2 | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | ||||
| (518-778) | Feed (ipm) | 44.4 | 49.9 | 62.8 | 82.0 | 82.7 | 87.1 | 69.7 | |||||
| Profile | 560 | RPM | 11409 | 8557 | 5705 | 4278 | 3423 | 2852 | 2139 | ||||
| ≤ 0.05 | ≤ 1 | Fz | 0.0006 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | ||||
| STAINLESS STEELS (FREE MACHINING) | ≤ 275 Bhn | (448-672) | Feed (ipm) | 47.9 | 53.9 | 67.9 | 88.6 | 89.3 | 94.1 | 75.3 | |||
| M 303, 416, 420F, 430F, 440F | or ≤ 28 HRc | Finish | 448 | RPM | 9127 | 6845 | 4564 | 3423 | 2738 | 2282 | 1711 | ||
| ≤ 0.02 | ≤ 2 | Fz | 0.0005 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0026 | ||||
| (358-538) | Feed (ipm) | 30.7 | 34.5 | 43.4 | 56.7 | 57.2 | 60.2 | 48.2 |
STEELS STAINLESS STEELS
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