
| Series 51, 51CR, 51L, 51LC | Ae | Ap Ae | Vc | Diame (in | ter (D1) ch) | |||||||
| Fractional | Hardness | Ae x D1 | Ap x D1 | (sfm) | 1/4 | 3/8 | 1/2 | 5/8 | 3/4 | 1 | ||
| Profile | 720 | RPM | 11002 | 7334 | 5501 | 4401 | 3667 | 2750 | ||||
| CARBON STEELS | ≤ 0.1 | ≤ 1 | (576-864) | Fz | 0.0020 | 0.0035 | 0.0050 | 0.0055 | 0.0061 | 0.0071 | ||
| 1018, 1040, 1080, 1090 10L50 1140 | ≤ 275 Bhn | Feed (ipm) | 132 | 154 | 165 | 145 | 134 | 117 | ||||
| , , , 1212, 12L15, 1525, 1536 | or ≤ 28 HRc | HSM | 915 | RPM | 13981 | 9321 | 6991 | 5592 | 4660 | 3495 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0028 | 0.0053 | 0.0070 | 0.0077 | 0.0085 | 0.0100 | ||||
| P | (732-1098) | Feed (ipm) | 235 | 296 | 294 | 258 | 238 | 210 | ||||
| Pfil | 490 | RPM | 7487 | 4991 | 3744 | 2995 | 2496 | 1872 | ||||
| roe | ≤ 0.1 | ≤ 1 | (392588) | Fz | 0.0015 | 0.0029 | 0.0038 | 0.0042 | 0.0046 | 0.0054 | ||
| ALLOY STEELS 4140, 4150, 4320, | ≤ 375 Bhn | - | Feed (ipm) | 67 | 87 | 85 | 75 | 69 | 61 | |||
| 5120, 5150, 8630, 86L20, 50100 | or ≤ 40 HRc | HSM | 620 | RPM | 9474 | 6316 | 4737 | 3789 | 3158 | 2368 | ||
| ≤ 0.05 | ≤ 2 | 496744 | Fz | 0.0021 | 0.0039 | 0.0052 | 0.0057 | 0.0062 | 0.0073 | |||
| (-) | Feed (ipm) | 119 | 148 | 148 | 130 | 117 | 104 | |||||
| Pfil | 240 | RPM | 3667 | 2445 | 1834 | 1467 | 1222 | 917 | ||||
| roe | ≤ 0.1 | ≤ 1 | 192288 | Fz | 0.0012 | 0.0023 | 0.0030 | 0.0034 | 0.0037 | 0.0043 | ||
| H TOOL STEELS A2 D2 H13 L2 M2 | ≤ 375 Bhn | (-) | Feed (ipm) | 26 | 34 | 33 | 30 | 27 | 24 | |||
| , , , , , P20, S7, T15, W2 | or ≤ 40 HRc | HSM | 305 | RPM | 4660 | 3107 | 2330 | 1864 | 1553 | 1165 | ||
| ≤ 0.05 | ≤ 2 | (244366) | Fz | 0.0017 | 0.0032 | 0.0042 | 0.0046 | 0.0050 | 0.0059 | |||
| - | Feed (ipm) | 48 | 60 | 59 | 51 | 47 | 41 | |||||
| Pfil | 510 | RPM | 7793 | 5195 | 3896 | 3117 | 2598 | 1948 | ||||
| roe | ≤ 0.1 | ≤ 1 | Fz | 0.0015 | 0.0028 | 0.0038 | 0.0041 | 0.0045 | 0.0053 | |||
| STAINLESS STEELS (FREE MACHINING) | ≤ 275 Bhn | (459-561) | Feed (ipm) | 70 | 87 | 89 | 77 | 70 | 62 | |||
| 303, 416, 420F, 430F, 440F | or ≤ 28 HRc | HSM | 650 | RPM | 9932 | 6621 | 4966 | 3973 | 3311 | 2483 | ||
| ≤ 0.05 | ≤ 2 | 585715 | Fz | 0.0021 | 0.0038 | 0.0051 | 0.0056 | 0.0061 | 0.0072 | |||
| (-) | Feed (ipm) | 125 | 151 | 152 | 133 | 121 | 107 | |||||
| Profile | 350 | RPM | 5348 | 3565 | 2674 | 2139 | 1783 | 1337 | ||||
| ≤ 0.1 | ≤ 1 | 315385 | Fz | 0.0012 | 0.0023 | 0.0030 | 0.0033 | 0.0036 | 0.0042 | |||
| STAINLESS STEELS | ≤ 275 Bhn | (-) | Feed (ipm) | 39 | 49 | 48 | 42 | 39 | 34 | |||
| M (DIFFICULT) 304, 304L, 316, 316L | or ≤ 28 HRc | HSM | 450 | RPM | 6876 | 4584 | 3438 | 2750 | 2292 | 1719 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0017 | 0.0032 | 0.0042 | 0.0046 | 0.0050 | 0.0059 | ||||
| (405-495) | Feed (ipm) | 70 | 88 | 87 | 76 | 69 | 61 | |||||
| Profile | 325 | RPM | 4966 | 3311 | 2483 | 1986 | 1655 | 1242 | ||||
| ≤ 0.1 | ≤ 1 | Fz | 0.0012 | 0.0023 | 0.0030 | 0.0033 | 0.0036 | 0.0042 | ||||
| STAINLESS STEELS (PH) | ≤ 325 Bhn | (293-358) | Feed (ipm) | 36 | 46 | 45 | 39 | 36 | 31 | |||
| 13-8 PH, 15-5 PH, 17-4 PH, Custom 450 | or ≤ 35 HRc | HSM | 410 | RPM | 6265 | 4177 | 3132 | 2506 | 2088 | 1566 | ||
| ≤ 0.05 | ≤ 2 | Fz | 0.0017 | 0.0032 | 0.0042 | 0.0046 | 0.0050 | 0.0059 | ||||
| (369-451) | Feed (ipm) | 64 | 80 | 79 | 69 | 63 | 55 |
continued on next page