FRACTIONAL T-Carb® Ap Series 51, 51CR, 51L, Ae Ae DC • in 51LC Vc Fractional Hardness Ae x DC Ap x DC (sfm) 1/4 3/8 1/2 5/8 3/4 1 Profile 720 RPM 11002 7334 5501 4401 3667 2750 ≤ 0.1 ≤1 Fz 0.0020 0.0035 0.0050 0.0055 0.0061 0.0071 CARBON STEELS (576-864) 1018, 1040, 1080, ≤ 275 Bhn Feed (ipm) 132 154 165 145 134 117 1090, 10L50, 1140, or 1212, 12L15, 1525, ≤ 28 HRc 915 RPM 13981 9321 6991 5592 4660 3495 1536 HSM ≤ 0.05 ≤2 Fz 0.0028 0.0053 0.0070 0.0077 0.0085 0.0100 (732-1098) Feed (ipm) 235 296 294 258 238 210 P 490 RPM 7487 4991 3744 2995 2496 1872 Profile ≤ 0.1 ≤1 Fz 0.0015 0.0029 0.0038 0.0042 0.0046 0.0054 ALLOY STEELS4140, 4150, 4320,5120, 5150, 8630,86L20, 50100≤ 375 Bhnor≤ 40 HRcHSM (392-588) Feed (ipm) 67 87 85 75 69 61620RPM947463164737378931582368 ≤ 0.05 ≤2 Fz 0.0021 0.0039 0.0052 0.0057 0.0062 0.0073 (496-744) Feed (ipm) 119 148 148 130 117 104 510 RPM 7793 5195 3896 3117 2598 1948 Profile ≤ 0.1 ≤1 Fz 0.0015 0.0028 0.0038 0.0041 0.0045 0.0053 STAINLESS STEELS(FREE MACHINING)303, 416, 420F,430F, 440F≤ 275 Bhnor≤ 28 HRcHSM (459-561) Feed (ipm) 70 87 89 77 70 62650RPM993266214966397333112483 ≤ 0.05 ≤2 Fz 0.0021 0.0038 0.0051 0.0056 0.0061 0.0072 (585-715) Feed (ipm) 125 151 152 133 121 107 350 RPM 5348 3565 2674 2139 1783 1337 Profile ≤ 0.1 ≤1 Fz 0.0012 0.0023 0.0030 0.0033 0.0036 0.0042 (315-385) STAINLESS STEELS ≤ 275 Bhn Feed (ipm) 39 49 48 42 39 34 M (DIFFICULT) or 304, 304L, 316, 316L ≤ 28 HRc 450 RPM 6876 4584 3438 2750 2292 1719 HSM ≤ 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 61 325 RPM 4966 3311 2483 1986 1655 1242 Profile ≤ 0.1 ≤1 Fz 0.0012 0.0023 0.0030 0.0033 0.0036 0.0042 STAINLESS STEELS(PH)13-8 PH, 15-5 PH,17-4 PH, Custom 450≤ 325 Bhnor≤ 35 HRcHSM (293-358) Feed (ipm) 36 46 45 39 36 31410RPM626541773132250620881566 ≤ 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 76 END MILLS wwwE.kNyDoMceILraLS-sgstool.com