Series 55, 55CRAeAp AeVcDiameter (D (inch)1)
FractionalHardnessAe x D1Ap x D1(sfm)1/81/43/81/25/83/41
Profile255RPM779338962598194815591299974
≤ 0.25≤ 1.5(204306)Fz0.00020.00060.00120.00160.00200.00210.0023
STAINLESS STEELS (DIFFICULT)≤ 275 Bhn-Feed (ipm)9.411.715.615.615.613.611.2
304, 304L, 316, 316Lor ≤ 28 HRcHSM385RPM11766588339222941235319611471
≤ 0.05≤ 2(308-462)Fz0.00050.00130.00240.00320.00400.00410.0045
MFeed (ipm)28.238.247.147.147.140.233.1
Pfil235RPM718235912394179514361197898
roe≤ 0.25≤ 1.5Fz0.00020.00060.00100.00140.00170.00180.0019
STAINLESS STEELS (PH)≤ 325 Bhn(188-282)Feed (ipm)7.510.812.012.612.210.88.5
13-8 PH, 15-5 PH, 17-4 PH, Custom 450or ≤ 35 HRcHSM355RPM10849542436162712217018081356
≤ 0.05≤ 2(284426)Fz0.00040.00110.00210.00280.00340.00360.0039
-Feed (ipm)22.229.838.038.036.932.526.4
Pfil70RPM21391070713535428357267
SUPER ALLOYSroe≤ 0.25≤ 1.5Fz0.00020.00060.00100.00140.00170.00180.0019
(NICKEL, COBALT, IRON BASE≤ 300 Bhn(56-84)Feed (ipm)2.23.23.63.73.63.22.5
) Inconel 601, 617, 625,or ≤ 32 HRcHSM107RPM327016351090817654545409
Incoloy, Monel 400≤ 0.05≤ 2Fz0.00040.00110.00210.00280.00340.00360.0039
(86-128)Feed (ipm)6.79.011.411.411.19.88.0
Profile55RPM1681840560420336280210
SUPER ALLOYS≤ 0.25≤ 1.5Fz0.00020.00040.00080.00100.00130.00140.0015
(NICKEL, COBALT, IRON BASE)≤ 400 Bhn(44-66)Feed (ipm)1.31.72.22.12.22.01.6
Inconel 718, X-750, Incoloy, Waspaloy,or ≤ 43 HRcHSM85RPM25981299866649520433325
Hastelloy, Rene≤ 0.05≤ 2Fz0.00030.00080.00150.00210.00260.00270.0029
(68-102)Feed (ipm)4.05.26.56.86.85.84.7
SPrfil235RPM718235912394179514361197898
TITANIUM ALLOYSoe≤ 0.25≤ 1.5(188282)Fz0.00020.00060.00120.00160.00200.00210.0023
Pure Titanium,≤ 350 Bhn-Feed (ipm)7.210.814.414.414.412.610.3
Ti6Al4V, Ti6Al2Sn4Zr2Mo,or ≤ 38 HRcHSM390RPM11918595939732980238419861490
Ti4Al4Mo2Sn0.5Si≤ 0.05≤ 2Fz0.00050.00130.00240.00320.00400.00410.0045
(312-468)Feed (ipm)29.838.747.747.747.740.733.5
85RPM25981299866649520433325
TITANIUM ALLOYS (DIFFICULT)Profile≤ 0.25≤ 1.5Fz0.00020.00060.00120.00160.00200.00210.0023
Ti10Al2Fe3Al, Ti5Al5V5Mo3Cr,≤ 440 Bhn(68-102)Feed (ipm)2.63.95.25.25.24.53.7
Ti7Al4Mo, Ti3Al8V6Cr4Zr4Mo,or ≤ 47 HRcHSM140RPM4278213914261070856713535
Ti6Al6V6Sn, Ti15V3 Cr3Sn3Al≤ 0.05≤ 2Fz0.00050.00130.00240.00320.00400.00420.0045
(112-168)Feed (ipm)10.713.917.117.117.115.012.0

Bhn (Brinell) HRc (Rockwell C) HSM (High Speed Machining) rpm = Vc x 3.82 / D 1 ipm = Fz x 5 x rpm reduce speed and feed for materials harder than listed reduce Ap to 1 x D (maximum) when profile milling with long or extra long flute length tools