72 / 396
72
www.kyocera-sgstool.com
END MILLS
END MILLS
METRIC
V-Carb
Series
55M, 55MCR,
55MB
Metric
Hardness
Ap
Ae
Ae
Vc
(m/min)
Diameter (D
1
)
(mm)
Ae x D
1
Ap x D
1
6
8
10
12
16
20
P
CARBON STEELS
1018, 1040, 1080,
1090, 10L50, 1140,
1212, 12L15, 1525,
1536
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.25
≤ 1.5
117
RPM 6220
4665
3732
3110
2333
1866
(94-141)
Fz
0.022
0.036
0.061
0.070
0.072
0.085
Feed (mm/min)
672
846
1145
1082
836
796
HSM
≤ 0.05
≤ 2
192
RPM 10179
7634
6107
5089
3817
3054
(154-230)
Fz
0.043
0.073
0.123
0.137
0.141
0.154
Feed (mm/min)
2198
2769
3746
3481
2687
2345
ALLOY STEELS
4140, 4150, 4320,
5120, 5150, 8630,
86L20, 50100
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.25
≤ 1.5
99
RPM 5251
3938
3151
2626
1969
1575
(79-119)
Fz
0.017
0.028
0.045
0.053
0.054
0.064
Feed (mm/min)
441
546
571
693
529
504
HSM
≤ 0.05
≤ 2
162
RPM 8563
6422
5138
4282
3211
2569
(129-194)
Fz
0.034
0.055
0.091
0.103
0.105
0.128
Feed (mm/min)
1438
1781
2329
2209
1685
1644
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.25
≤ 1.5
53
RPM 2827
2121
1696
1414
1060
848
(43-64)
Fz
0.012
0.021
0.035
0.038
0.044
0.048
Feed (mm/min)
170
226
294
271
231
204
HSM
≤ 0.05
≤ 2
88
RPM 4686
3514
2811
2343
1757
1406
(71-106)
Fz
0.024
0.041
0.067
0.077
0.084
0.093
Feed (mm/min)
562
712
937
900
742
656
K
CAST IRONS
(LOW & MEDIUM
ALLOY)
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
Profile
≤ 0.25
≤ 1.5
143
RPM 7594
5695
4556
3797
2848
2278
(115-172)
Fz
0.022
0.036
0.061
0.070
0.077
0.085
Feed (mm/min)
820
1033
1397
1321
1093
972
HSM
≤ 0.05
≤ 2
215
RPM 11391
8543
6834
5695
4271
3417
(172-258)
Fz
0.043
0.073
0.123
0.137
0.151
0.171
Feed (mm/min)
2460
3099
4192
3895
3226
2916
CAST IRONS
(HIGH ALLOY)
Gray, Malleable,
Ductile
≤ 260 Bhn
or
≤ 26 HRc
Profile
≤ 0.25
≤ 1.5
110
RPM 5816
4362
3490
2908
2181
1745
(88-132)
Fz
0.017
0.028
0.045
0.053
0.059
0.064
Feed (mm/min)
489
605
791
768
642
558
HSM
≤ 0.05
≤ 2
165
RPM 8725
6544
5235
4362
3272
2617
(132-198)
Fz
0.034
0.055
0.091
0.103
0.113
0.128
Feed (mm/min)
1466
1815
2373
2251
1843
1675
continued on next page