
| Series 33CR | Ae | Ap Ae | Vc | D | iameter ( (inch) | D1) | |||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 1/8 | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | ||
| Profile | 550 | RPM | 16808 | 8404 | 5603 | 4202 | 3362 | 2801 | 2101 | ||||
| ≤ 0.5 | ≤ 1.5 | Fz | 0.0005 | 0.0012 | 0.0023 | 0.0031 | 0.0039 | 0.0040 | 0.0043 | ||||
| CARBON STEELS 1018, 1040, 1080, 1090, | ≤ 275 Bhn or | (440-660) | Feed (ipm) | 25.2 | 30.3 | 38.7 | 39.1 | 39.3 | 33.6 | 27.1 | |||
| 10L50, 1140, 1212, 12L15, 1525, 1536 | ≤ 28 HRc | Slot | 440 | RPM | 13446 | 6723 | 4482 | 3362 | 2689 | 2241 | 1681 | ||
| 1 | ≤ 1 | 352528 | Fz | 0.0005 | 0.0012 | 0.0023 | 0.0031 | 0.0039 | 0.0040 | 0.0043 | |||
| P | (-) | Feed (ipm) | 20.2 | 24.2 | 30.9 | 31.3 | 31.5 | 26.9 | 21.7 | ||||
| Profile | 315 | RPM | 9626 | 4813 | 3209 | 2407 | 1925 | 1604 | 1203 | ||||
| ≤ 0.5 | ≤ 1.5 | Fz | 0.0004 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | ||||
| ALLOY STEELS 4140, 4150, 4320, 5120, | ≤ 375 Bhn | (252-378) | Feed (ipm) | 11.6 | 13.0 | 16.4 | 16.6 | 16.7 | 14.4 | 11.6 | |||
| 5150, 8630, 86L20, 50100 | or ≤ 40 HRc | Slot | 250 | RPM | 7640 | 3820 | 2547 | 1910 | 1528 | 1273 | 955 | ||
| 1 | ≤ 1 | 200300 | Fz | 0.0004 | 0.0009 | 0.0017 | 0.0023 | 0.0029 | 0.0030 | 0.0032 | |||
| (-) | Feed (ipm) | 9.2 | 10.3 | 13.0 | 13.2 | 13.3 | 11.5 | 9.2 | |||||
| Profile | 185 | RPM | 5654 | 2827 | 1885 | 1413 | 1131 | 942 | 707 | ||||
| ≤ 0.5 | ≤ 1.5 | 148222 | Fz | 0.0003 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0025 | |||
| TOOL STEELS | ≤ 375 Bhn | (-) | Feed (ipm) | 5.1 | 5.9 | 7.9 | 7.6 | 7.8 | 6.8 | 5.3 | |||
| H A2, D2, H13, L2, M2, P20, S7, T15, W2 | or ≤ 40 HRc | Slot | 145 | RPM | 4431 | 2216 | 1477 | 1108 | 886 | 739 | 554 | ||
| 1 | ≤ 1 | (116-174) | Fz | 0.0003 | 0.0007 | 0.0014 | 0.0018 | 0.0023 | 0.0024 | 0.0025 | |||
| Feed (ipm) | 4.0 | 4.7 | 6.2 | 6.0 | 6.1 | 5.3 | 4.2 | ||||||
| Profile | 445 | RPM | 13599 | 6800 | 4533 | 3400 | 2720 | 2267 | 1700 | ||||
| CAST IRONS | ≤ 0.5 | ≤ 1.5 | Fz | 0.0004 | 0.0011 | 0.0021 | 0.0028 | 0.0035 | 0.0036 | 0.0039 | |||
| (LOW & MEDIUM ALLOY | ≤ 220 Bhn | (356-534) | Feed (ipm) | 14.3 | 22.4 | 28.6 | 28.6 | 28.6 | 24.5 | 19.9 | |||
| ) Gray, Malleable, | or ≤ 19 HRc | Slot | 355 | RPM | 10849 | 5424 | 3616 | 2712 | 2170 | 1808 | 1356 | ||
| Ductile | 1 | ≤ 1 | Fz | 0.0004 | 0.0011 | 0.0021 | 0.0028 | 0.0035 | 0.0036 | 0.0039 | |||
| K | (284-426) | Feed (ipm) | 11.4 | 17.9 | 22.8 | 22.8 | 22.8 | 19.5 | 15.9 | ||||
| Profile | 340 | RPM | 10390 | 5195 | 3463 | 2598 | 2078 | 1732 | 1299 | ||||
| ≤ 0.5 | ≤ 1.5 | Fz | 0.0003 | 0.0008 | 0.0016 | 0.0021 | 0.0026 | 0.0027 | 0.0029 | ||||
| CAST IRONS (HIGH ALLOY) | ≤ 260 Bhn | (272-408) | Feed (ipm) | 9.4 | 12.5 | 16.6 | 16.4 | 16.2 | 14.0 | 11.3 | |||
| Gray, Malleable, Ductile | or ≤ 26 HRc | Slot | 270 | RPM | 8251 | 4126 | 2750 | 2063 | 1650 | 1375 | 1031 | ||
| 1 | ≤ 1 | (216324) | Fz | 0.0003 | 0.0008 | 0.0016 | 0.0021 | 0.0026 | 0.0027 | 0.0029 | |||
| - | Feed (ipm) | 7.4 | 9.9 | 13.2 | 13.0 | 12.9 | 11.1 | 9.0 | |||||
| Profile | 490 | RPM | 14974 | 7487 | 4991 | 3744 | 2995 | 2496 | 1872 | ||||
| ≤ 0.5 | ≤ 1.5 | Fz | 0.0004 | 0.0010 | 0.0019 | 0.0025 | 0.0031 | 0.0032 | 0.0035 | ||||
| STAINLESS STEELS (FREE MACHINING) | ≤ 275 Bhn | (392-588) | Feed (ipm) | 17.1 | 22.5 | 28.5 | 28.1 | 27.9 | 24.0 | 19.7 | |||
| M 303, 416, 420F, 430F, 440F | or ≤ 28 HRc | Slot | 390 | RPM | 11918 | 5959 | 3973 | 2980 | 2384 | 1986 | 1490 | ||
| 1 | ≤ 1 | Fz | 0.0004 | 0.0010 | 0.0019 | 0.0025 | 0.0031 | 0.0032 | 0.0035 | ||||
| (312-468) | Feed (ipm) | 13.6 | 17.9 | 22.6 | 22.3 | 22.2 | 19.1 | 15.6 |
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