66M, 66MCR Metric |
HARDNESS |
CUT |
SPEED |
FEED (mm/flute) |
BRINELL |
Type |
m/min |
6 |
8 |
10 |
12 |
16 |
20 |
25 |
■
CARBON STEEL 1018, 1040, 1080, 1090, 10L50, 1140, 1212, 12L15, 1525, 1536 |
≤ 175 |
Profile |
174 |
0.022 |
0.034 |
0.043 |
0.053 |
0.061 |
0.069 |
0.075 |
Light |
219 |
0.029 |
0.047 |
0.059 |
0.072 |
0.084 |
0.096 |
0.105 |
> 175 ≤ 275 |
Profile |
151 |
0.022 |
0.034 |
0.043 |
0.053 |
0.061 |
0.069 |
0.075 |
Light |
192 |
0.029 |
0.047 |
0.059 |
0.072 |
0.084 |
0.096 |
0.105 |
■
ALLOY STEEL 4140, 4150, 4320, 5120, 5150, 8630, 86L20, 50100 |
≤ 275 |
Profile |
126 |
0.017 |
0.028 |
0.035 |
0.041 |
0.049 |
0.053 |
0.058 |
Light |
162 |
0.022 |
0.036 |
0.045 |
0.055 |
0.067 |
0.075 |
0.080 |
> 275 ≤ 375 |
Profile |
87 |
0.017 |
0.028 |
0.035 |
0.041 |
0.049 |
0.053 |
0.058 |
Light |
110 |
0.022 |
0.036 |
0.045 |
0.055 |
0.067 |
0.075 |
0.080 |
■
TOOL STEEL A2, D2, H13, L2, M2, P20, S7, T15, W2 |
≤ 250 |
Profile |
113 |
0.014 |
0.023 |
0.029 |
0.036 |
0.044 |
0.048 |
0.053 |
Light |
143 |
0.019 |
0.032 |
0.040 |
0.050 |
0.059 |
0.067 |
0.073 |
> 250 ≤ 375 |
Profile |
70 |
0.012 |
0.019 |
0.024 |
0.029 |
0.033 |
0.037 |
0.040 |
Light |
88 |
0.014 |
0.026 |
0.032 |
0.038 |
0.046 |
0.051 |
0.055 |
■
CAST IRON Gray, Malleable, Ductile |
≤ 220 |
Profile |
169 |
0.022 |
0.034 |
0.043 |
0.053 |
0.061 |
0.069 |
0.075 |
Light |
215 |
0.029 |
0.047 |
0.059 |
0.072 |
0.084 |
0.096 |
0.105 |
> 220 ≤ 260 |
Profile |
126 |
0.022 |
0.034 |
0.043 |
0.053 |
0.061 |
0.069 |
0.075 |
Light |
160 |
0.029 |
0.047 |
0.059 |
0.072 |
0.084 |
0.096 |
0.105 |
■
STAINLESS (free machining) 303, 416, 420F, 430F, 440F |
≤ 275 |
Profile |
131 |
0.017 |
0.028 |
0.035 |
0.041 |
0.049 |
0.053 |
0.058 |
Light |
171 |
0.022 |
0.036 |
0.045 |
0.055 |
0.067 |
0.075 |
0.080 |
■
STAINLESS (difficult) 304, 304L, 316, 316L |
≤ 275 |
Profile |
93 |
0.012 |
0.021 |
0.027 |
0.031 |
0.038 |
0.043 |
0.048 |
Light |
117 |
0.017 |
0.030 |
0.037 |
0.043 |
0.051 |
0.059 |
0.065 |
■
STAINLESS (PH) 17-4PH, 15-5PH, Custom 450, 16-6PH, PH13-8Mo |
≤ 325 |
Profile |
85 |
0.012 |
0.021 |
0.027 |
0.031 |
0.038 |
0.043 |
0.048 |
Light |
108 |
0.017 |
0.030 |
0.037 |
0.043 |
0.051 |
0.059 |
0.065 |
■
TITANIUM Ti5Al-5V-5Mo, Ti6Al4V, Ti-7Al4Mo |
≤ 350 |
Profile |
93 |
0.014 |
0.023 |
0.029 |
0.036 |
0.044 |
0.048 |
0.053 |
Light |
119 |
0.019 |
0.032 |
0.040 |
0.050 |
0.059 |
0.067 |
0.073 |
■
HIGH TEMPERATURE ALLOY A-286, Hastelloy, Incoloy, Inconel, Rene, Waspalloy |
≤ 300 |
Profile |
26 |
0.012 |
0.021 |
0.027 |
0.031 |
0.038 |
0.043 |
0.048 |
Light |
33 |
0.017 |
0.030 |
0.037 |
0.043 |
0.051 |
0.059 |
0.065 |
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