METRIC V-Carb Ap Series Diameter (D1) 55M, 55MCR, Ae Ae (mm) 55MB Vc Metric Hardness Ae x D1 Ap x D1 (m/min) 6 8 10 12 16 20 113 RPM 5978 4484 3587 2989 2242 1793 Profile ≤ 0.25 ≤ 1.5 Fz 0.017 0.028 0.045 0.053 0.059 0.064 STAINLESS STEELS (90-135) (FREE MACHINING) ≤ 275 Bhn Feed (mm/min) 502 622 813 789 660 574 M 303, 416, 420F, or 430F, 440F ≤ 28 HRc 171 RPM 9048 6786 5429 4524 3393 2714 HSM ≤ 0.05 ≤2 Fz 0.034 0.055 0.091 0.103 0.113 0.128 (137-205) Feed (mm/min) 1520 1882 2461 2334 1911 1737 78 RPM 4120 3090 2472 2060 1545 1236 Profile ≤ 0.25 ≤ 1.5 Fz 0.014 0.026 0.043 0.048 0.054 0.061 (62-93) STAINLESS STEELS ≤ 275 Bhn Feed (mm/min) 297 396 527 494 415 379 (DIFFICULT) or 304, 304L, 316, 316L ≤ 28 HRc 117 RPM 6220 4665 3732 3110 2333 1866 HSM ≤ 0.05 ≤2 Fz 0.031 0.051 0.085 0.096 0.105 0.120 (94-141) Feed (mm/min) 970 1194 1592 1493 1224 1120 M 72 RPM 3797 2848 2278 1898 1424 1139 Profile ≤ 0.25 ≤ 1.5 Fz 0.014 0.021 0.037 0.041 0.046 0.051 STAINLESS STEELS (57-86) (PH) ≤ 325 Bhn Feed (mm/min) 273 13260 425 387 328 289 13-8 PH, 15-5 PH, or 17-4 PH, Custom 450 ≤ 35 HRc 108 RPM 5736 4302 3441 2868 2151 1721 HSM ≤ 0.05 ≤2 Fz 0.026 0.045 0.075 0.082 0.092 0.104 (87-130) Feed (mm/min) 757 14850 1285 1170 991 895 21 RPM 1131 848 679 565 424 339 Profile ≤ 0.25 ≤ 1.5 Fz 0.014 0.021 0.037 0.041 0.046 0.051 SUPER ALLOYS (17-26) (NICKEL, COBALT, ≤ 300 Bhn Feed (mm/min) 81 16530 196792 115 98 86 IRON BASE) or Inconel 601, 617, 625, ≤ 32 HRc 33 RPM 1729 1297 1037 864 648 519 Incoloy, Monel 400 HSM ≤ 0.05 ≤2 Fz 0.026 0.045 0.075 0.082 0.092 0.104 (26-39) Feed (mm/min) 228 290 387 353 299 270 S 17 RPM 889 666 533 444 333 267 Profile SUPER ALLOYS ≤ 0.25 ≤ 1.5 Fz 0.010 0.017 0.027 0.031 0.036 0.040 (NICKEL, COBALT, (13-20) IRON BASE) ≤ 400 Bhn Feed (mm/min) 43 57 71 69 60 53 Inconel 718, X-750, or Incoloy, Waspaloy, ≤ 43 HRc 26 RPM 1373 1030 824 687 515 412 Hastelloy, Rene HSM ≤ 0.05 ≤2 Fz 0.019 0.032 0.056 0.062 0.069 0.077 (21-31) Feed (mm/min) 132 165 231 214 178 159 continued on next page www.kyocerEaN-DsgMstILoLoSl.com END MILLS 71