METRIC V-Carb Ap Series 55M, 55MCR, Ae Ae DC • mm 55MB Vc Metric Hardness Ae x DC Ap x DC (m/min) 6 8 10 12 16 20 143 RPM 7594 5695 4556 3797 2848 2278 Profile ≤ 0.25 ≤ 1.5 Fz 0.022 0.036 0.061 0.070 0.077 0.085 CAST IRONS (115-172) (LOW & MEDIUM ≤ 220 Bhn Feed (mm/min) 820 1033 1397 1321 1093 972 ALLOY) or Gray, Malleable, ≤ 19 HRc 215 RPM 11391 8543 6834 5695 4271 3417 Ductile HSM ≤ 0.05 ≤2 Fz 0.043 0.073 0.123 0.137 0.151 0.171 (172-258) Feed (mm/min) 2460 3099 4192 3895 3226 2916 K 110 RPM 5816 4362 3490 2908 2181 1745 Profile ≤ 0.25 ≤ 1.5 Fz 0.017 0.028 0.045 0.053 0.059 0.064 CAST IRONS (88-132) ≤ 260 Bhn Feed (mm/min) 489 605 791 768 642 558 (HIGH ALLOY) or Gray, Malleable, 165 RPM 8725 6544 5235 4362 3272 2617 ≤ 26 HRc Ductile HSM ≤ 0.05 ≤2 Fz 0.034 0.055 0.091 0.103 0.113 0.128 (132-198) Feed (mm/min) 1466 1815 2373 2251 1843 1675 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 90 127 115 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) ≤ 400 Bhn Feed (mm/min) 43 57 71 69 60 53 IRON BASE) or Inconel 718, X-750, 26 RPM 1373 1030 824 687 515 412 ≤ 43 HRc Incoloy, Waspaloy, HSM Hastelloy, Rene ≤ 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 72 END MILLS END MILLS www.kyocera-sgstool.com