
FRACTIONAL V-Carb Ap Series Ae Ae DC • in 55, 55CR, 55B Vc Fractional Hardness Ae x DC Ap x DC (sfm) 1/8 1/4 3/8 1/2 5/8 3/4 1 385 RPM 11766 5883 3922 2941 2353 1961 1471 Profile ≤ 0.25 ≤ 1.5 Fz 0.0004 0.0009 0.0017 0.0023 0.0029 0.0028 0.0032 CARBON STEELS (308-462) 1018, 1040, 1080, ≤ 275 Bhn Feed (ipm) 20.6 26.5 33.3 33.8 34.1 27.5 23.5 1090, 10L50, 1140, or 1212, 12L15, 1525, ≤ 28 HRc 630 RPM 19253 9626 6418 4813 3851 3209 2407 1536 HSM ≤ 0.05 ≤2 Fz 0.0007 0.0018 0.0034 0.0046 0.0057 0.0055 0.0064 (504-756) Feed (ipm) 67.4 86.6 109.1 110.7 109.7 88.2 77.0 P 325 RPM 9932 4966 3311 2483 1986 1655 1242 Profile ≤ 0.25 ≤ 1.5 Fz 0.0003 0.0007 0.0013 0.0017 0.0022 0.0021 0.0024 ALLOY STEELS (260-390) ≤ 375 Bhn Feed (ipm) 12.9 17.4 21.5 21.1 21.9 17.4 14.9 4140, 4150, 4320, or 5120, 5150, 8630, 530 RPM 16197 8098 5399 4049 3239 2699 2025 ≤ 40 HRc 86L20, 50100 HSM ≤ 0.05 ≤2 Fz 0.0005 0.0014 0.0026 0.0034 0.0043 0.0041 0.0048 (424-636) Feed (ipm) 42.1 56.7 70.2 68.8 69.6 55.3 48.6 370 RPM 11307 5654 3769 2827 2261 1885 1413 Profile ≤ 0.25 ≤ 1.5 Fz 0.0003 0.0007 0.0013 0.0017 0.0022 0.0023 0.0024 STAINLESS STEELS (296-444) ≤ 275 Bhn Feed (ipm) 14.7 19.8 24.5 24.0 24.9 21.7 17.0 (FREE MACHINING) or 303, 416, 420F, 560 RPM 17114 8557 5705 4278 3423 2852 2139 ≤ 28 HRc 430F, 440F HSM ≤ 0.05 ≤2 Fz 0.0005 0.0014 0.0026 0.0034 0.0043 0.0044 0.0048 (448-672) Feed (ipm) 44.5 59.9 74.2 72.7 73.6 62.7 51.3 255 RPM 7793 3896 2598 1948 1559 1299 974 Profile ≤ 0.25 ≤ 1.5 Fz 0.0002 0.0006 0.0012 0.0016 0.0020 0.0021 0.0023 (204-306) STAINLESS STEELS ≤ 275 Bhn Feed (ipm) 9.4 11.7 15.6 15.6 15.6 13.6 11.2 M (DIFFICULT) or 304, 304L, 316, 316L ≤ 28 HRc 385 RPM 11766 5883 3922 2941 2353 1961 1471 HSM ≤ 0.05 ≤2 Fz 0.0005 0.0013 0.0024 0.0032 0.0040 0.0041 0.0045 (308-462) Feed (ipm) 28.2 38.2 47.1 47.1 47.1 40.2 33.1 235 RPM 7182 3591 2394 1795 1436 1197 898 Profile ≤ 0.25 ≤ 1.5 Fz 0.0002 0.0006 0.0010 0.0014 0.0017 0.0018 0.0019 STAINLESS STEELS (188-282) ≤ 325 Bhn Feed (ipm) 7.5 10.8 12.0 12.6 12.2 10.8 8.5 (PH) or 13-8 PH, 15-5 PH, 355 RPM 10849 5424 3616 2712 2170 1808 1356 ≤ 35 HRc 17-4 PH, Custom 450 HSM ≤ 0.05 ≤2 Fz 0.0004 0.0011 0.0021 0.0028 0.0034 0.0036 0.0039 (284-426) Feed (ipm) 22.2 29.8 38.0 38.0 36.9 32.5 26.4 470 RPM 14363 7182 4788 3591 2873 2394 1795 Profile ≤ 0.25 ≤ 1.5 Fz 0.0004 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032 CAST IRONS (376-564) (LOW & MEDIUM ≤ 220 Bhn Feed (ipm) 25.1 32.3 40.7 41.3 41.7 35.9 28.7 K ALLOY) or Gray, Malleable, ≤ 19 HRc 705 RPM 21545 10772 7182 5386 4309 3591 2693 Ductile HSM ≤ 0.05 ≤2 Fz 0.0007 0.0018 0.0034 0.0046 0.0057 0.0059 0.0064 (564-846) Feed (ipm) 75.4 97.0 122.1 123.9 122.8 105.9 86.2 continued on next page 69 END MILLS www.kyocera-sgstool.com END MILLS