
FRACTIONAL H-Carb 77 Ap H-CARB Ae Ae D1 • inch Series 77, 77CR Vc Fractional Hardness Ae x D1 Ap x D1 (sfm) 1/4 3/8 1/2 5/8 3/4 1 RPM 11552 7701 5776 4621 3851 2888 HSM 2.5xD 816 Fz 0.0015 0.0024 0.0031 0.0035 0.0038 0.0042 CARBON STEELS ≤ 0.2 ≤ APMX (653-979) Feed (ipm) 121 129 125 113 102 85 ≤ 275 Bhn 1018, 1040, 1080, 1090, HSM 3xD Fz 0.0017 0.0027 0.0035 0.0040 0.0043 0.0047 or 845 10L50, 1140, 1212, ≤ 28 HRc ≤ 0.15 ≤ APMX (676-1014) Feed (ipm) 136 146 140 129 116 95 12L15, 1525, 1536 HSM 4xD 756 Fz 0.0018 0.0028 0.0036 0.0041 0.0044 0.0049 ≤ 0.1 ≤ APMX (605-907) Feed (ipm) 146 151 146 133 119 99 P RPM 8419 5613 4210 3368 2806 2105 HSM 2.5xD 595 Fz 0.0009 0.0019 0.0026 0.0028 0.0031 0.0035 ALLOY STEELS ≤ 0.2 ≤ APMX (476-714) Feed (ipm) 53 75 77 66 61 52 ≤ 375 Bhn 4140, 4150, 4320, 5120, HSM 3xD Fz 0.0010 0.0021 0.0030 0.0033 0.0035 0.0039 or 616 5150, 8630, 86L20, ≤ 40 HRc ≤ 0.15 ≤ APMX (493-739) Feed (ipm) 59 83 88 78 69 57 50100 HSM 4xD 551 Fz 0.0011 0.0022 0.0031 0.0034 0.0036 0.0041 ≤ 0.1 ≤ APMX (441-661) Feed (ipm) 65 86 91 80 71 60 RPM 9137 6092 4569 3655 3046 2284 HSM 2.5xD 646 Fz 0.0009 0.0017 0.0023 0.0025 0.0028 0.0032 STAINLESS STEELS ≤ 0.2 ≤ APMX (517-775) Feed (ipm) 58 72 74 64 60 51 ≤ 275 Bhn (FREE MACHINING) HSM 3xD Fz 0.0010 0.0019 0.0026 0.0029 0.0031 0.0036 or 669 303, 416, 420F, 430F, ≤ 28 HRc ≤ 0.15 ≤ APMX (535-803) Feed (ipm) 64 81 83 74 66 58 440F HSM 4xD 598 Fz 0.0011 0.0020 0.0027 0.0030 0.0033 0.0037 ≤ 0.1 ≤ APMX (478-718) Feed (ipm) 70 85 86 77 70 59 RPM 6020 4014 3010 2408 2007 1505 HSM 2.5xD 425 Fz 0.0007 0.0014 0.0019 0.0023 0.0026 0.0030 ≤ 0.2 ≤ APMX (340-510) Feed (ipm) 29 39 40 39 37 32 STAINLESS STEELS ≤ 275 Bhn M (DIFFICULT) or HSM 3xD 440 Fz 0.0008 0.0016 0.0021 0.0025 0.0029 0.0034 304, 304L, 316, 316L ≤ 28 HRc ≤ 0.15 ≤ APMX (352-528) Feed (ipm) 34 45 44 42 41 36 HSM 4xD 394 Fz 0.0008 0.0016 0.0022 0.0026 0.0030 0.0035 ≤ 0.1 ≤ APMX (315-473) Feed (ipm) 34 45 46 44 42 37 RPM 5776 3851 2888 2310 1925 1444 HSM 2.5xD 408 Fz 0.0007 0.0014 0.0019 0.0023 0.0026 0.0030 STAINLESS STEELS ≤ 0.2 ≤ APMX (326-490) Feed (ipm) 28 38 38 37 35 30 ≤ 325 Bhn (PH) HSM 3xD Fz 0.0008 0.0016 0.0021 0.0025 0.0029 0.0034 or 422 13-8 PH, 15-5PH, ≤ 35 HRc ≤ 0.15 ≤ APMX (338-506) Feed (ipm) 32 43 42 40 39 34 17-4 PH, CUSTOM 450 HSM 4xD 378 Fz 0.0008 0.0016 0.0022 0.0026 0.0030 0.0035 ≤ 0.1 ≤ APMX (302-454) Feed (ipm) 32 43 44 42 40 35 RPM 10100 6733 5050 4040 3367 2525 HSM 2.5xD 714 Fz 0.0010 0.0018 0.0024 0.0028 0.0033 0.0037 CAST IRONS ≤ 0.2 ≤ APMX (571-857) Feed (ipm) 71 85 85 79 78 65 (LOW & MEDIUM ≤ 220 Bhn ALLOY) or HSM 3xD 739 Fz 0.0011 0.0020 0.0027 0.0033 0.0037 0.0042 Gray, Malleable, ≤ 19 HRc ≤ 0.15 ≤ APMX (591-887) Feed (ipm) 78 94 95 93 87 73 Ductile HSM 4xD 661 Fz 0.0012 0.0021 0.0028 0.0034 0.0039 0.0043 ≤ 0.1 ≤ APMX (529-793) Feed (ipm) 85 99 99 96 92 76 P RPM 6020 4014 3010 2408 2007 1505 HSM 2.5xD 425 Fz 0.0007 0.0014 0.0019 0.0023 0.0026 0.0030 CAST IRONS ≤ 0.2 ≤ APMX (340-510) Feed (ipm) 29 39 40 39 37 32 ≤ 260 Bhn (HIGH ALLOY) HSM 3xD Fz 0.0008 0.0016 0.0021 0.0025 0.0029 0.0037 or 440 Gray, Malleable, ≤ 26 HRc ≤ 0.15 ≤ APMX (352-528) Feed (ipm) 34 45 44 42 41 39 Ductile HSM 4xD 394 Fz 0.0008 0.0016 0.0022 0.0026 0.0030 0.0035 ≤ 0.1 ≤ APMX (315-473) Feed (ipm) 34 45 46 44 42 37 continued on next page 86 END MILLS END MILLS www.kyocera-sgstool.com