
| Series 55, 55CR | Ae | Ap Ae | Vc | D | iameter (D (inch) | 1) | |||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 1/8 | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | ||
| Profile | 385 | RPM | 11766 | 5883 | 3922 | 2941 | 2353 | 1961 | 1471 | ||||
| CARBON STEELS | ≤ 0.25 | ≤ 1.5 | (308-462) | Fz | 0.0004 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0028 | 0.0032 | ||
| 1018, 1040, 1080, 1090 10L50 1140 | ≤ 275 Bhn or | Feed (ipm) | 20.6 | 26.5 | 33.3 | 33.8 | 34.1 | 27.5 | 23.5 | ||||
| , , , 1212, 12L15, 1525, 1536 | ≤ 28 HRc | HSM | 630 | RPM | 19253 | 9626 | 6418 | 4813 | 3851 | 3209 | 2407 | ||
| ≤ 0.05 | ≤ 2 | (504-756) | Fz | 0.0007 | 0.0018 | 0.0034 | 0.0046 | 0.0057 | 0.0055 | 0.0064 | |||
| P | Feed (ipm) | 67.4 | 86.6 | 109.1 | 110.7 | 109.7 | 88.2 | 77.0 | |||||
| Pfil | 325 | RPM | 9932 | 4966 | 3311 | 2483 | 1986 | 1655 | 1242 | ||||
| roe | ≤ 0.25 | ≤ 1.5 | Fz | 0.0003 | 0.0007 | 0.0013 | 0.0017 | 0.0022 | 0.0021 | 0.0024 | |||
| ALLOY STEELS 4140, 4150, 4320, | ≤ 375 Bhn or | (260-390) | Feed (ipm) | 12.9 | 17.4 | 21.5 | 21.1 | 21.9 | 17.4 | 14.9 | |||
| 5120, 5150, 8630, 86L20, 50100 | ≤ 40 HRc | HSM | 530 | RPM | 16197 | 8098 | 5399 | 4049 | 3239 | 2699 | 2025 | ||
| ≤ 0.05 | ≤ 2 | 2 | Fz | 0.0005 | 0.0014 | 0.0026 | 0.0034 | 0.0043 | 0.0041 | 0.0048 | |||
| (44-636) | Feed (ipm) | 42.1 | 56.7 | 70.2 | 68.8 | 69.6 | 55.3 | 48.6 | |||||
| Pfil | 175 | RPM | 5348 | 2674 | 1783 | 1337 | 1070 | 891 | 669 | ||||
| roe | ≤ 0.25 | ≤ 1.5 | 140210 | Fz | 0.0002 | 0.0005 | 0.0010 | 0.0013 | 0.0016 | 0.0017 | 0.0018 | ||
| TOOL STEELS | ≤ 375 Bhn | (-) | Feed (ipm) | 5.3 | 6.7 | 8.9 | 8.7 | 8.6 | 7.6 | 6.0 | |||
| H A2, D2, H13, L2, M2, P20, S7, T15, W2 | or ≤ 40 HRc | HSM | 290 | RPM | 8862 | 4431 | 2954 | 2216 | 1772 | 1477 | 1108 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0004 | 0.0010 | 0.0019 | 0.0025 | 0.0032 | 0.0033 | 0.0035 | ||||
| (232-348) | Feed (ipm) | 17.7 | 22.2 | 28.1 | 27.7 | 28.4 | 24.4 | 19.4 | |||||
| Profile | 470 | RPM | 14363 | 7182 | 4788 | 3591 | 2873 | 2394 | 1795 | ||||
| CAST IRONS | ≤ 0.25 | ≤ 1.5 | Fz | 0.0004 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | |||
| (LOW & MEDIUM ALLOY | ≤ 220 Bhn | (376-564) | Feed (ipm) | 25.1 | 32.3 | 40.7 | 41.3 | 41.7 | 35.9 | 28.7 | |||
| ) Gray, Malleable, Dil | or ≤ 19 HRc | HSM | 705 | RPM | 21545 | 10772 | 7182 | 5386 | 4309 | 3591 | 2693 | ||
| ucte | ≤ 0.05 | ≤ 2 | Fz | 0.0007 | 0.0018 | 0.0034 | 0.0046 | 0.0057 | 0.0059 | 0.0064 | |||
| K | (564-846) | Feed (ipm) | 75.4 | 97.0 | 122.1 | 123.9 | 122.8 | 105.9 | 86.2 | ||||
| Pfil | 360 | RPM | 11002 | 5501 | 3667 | 2750 | 2200 | 1834 | 1375 | ||||
| roe | ≤ 0.25 | ≤ 1.5 | (288432) | Fz | 0.0003 | 0.0007 | 0.0013 | 0.0017 | 0.0022 | 0.0023 | 0.0024 | ||
| CAST IRONS (HIGH ALLOY) | ≤ 260 Bhn | - | Feed (ipm) | 14.3 | 19.3 | 23.8 | 23.4 | 24.2 | 21.1 | 16.5 | |||
| Gray, Malleable, Ductile | or ≤ 26 HRc | HSM | 540 | RPM | 16502 | 8251 | 5501 | 4126 | 3300 | 2750 | 2063 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0005 | 0.0014 | 0.0026 | 0.0034 | 0.0043 | 0.0044 | 0.0048 | ||||
| (432-648) | Feed (ipm) | 42.9 | 57.8 | 71.5 | 70.1 | 71.0 | 60.5 | 49.5 | |||||
| Profile | 370 | RPM | 11307 | 5654 | 3769 | 2827 | 2261 | 1885 | 1413 | ||||
| ≤ 0.25 | ≤ 1.5 | Fz | 0.0003 | 0.0007 | 0.0013 | 0.0017 | 0.0022 | 0.0023 | 0.0024 | ||||
| STAINLESS STEELS (FREE MACHINING) | ≤ 275 Bhn | (296-444) | Feed (ipm) | 14.7 | 19.8 | 24.5 | 24.0 | 24.9 | 21.7 | 17.0 | |||
| M 303, 416, 420F, 430F, 440F | or ≤ 28 HRc | HSM | 560 | RPM | 17114 | 8557 | 5705 | 4278 | 3423 | 2852 | 2139 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0005 | 0.0014 | 0.0026 | 0.0034 | 0.0043 | 0.0044 | 0.0048 | ||||
| (448-672) | Feed (ipm) | 44.5 | 59.9 | 74.2 | 72.7 | 73.6 | 62.7 | 51.3 |
continued on next page