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FRACTIONAL
V-Carb
Series
55, 55CR, 55B
Fractional
Hardness
Ap
Ae
Ae
Vc
(sfm)
Diameter (D
1
)
(inch)
Ae x D
1
Ap x D
1
1/8
1/4
3/8
1/2
5/8
3/4
1
P
CARBON STEELS
1018, 1040, 1080,
1090, 10L50, 1140,
1212, 12L15, 1525,
1536
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.25
≤ 1.5
385
RPM 11766
5883
3922
2941
2353
1961
1471
(308-462)
Fz
0.0004 0.0009 0.0017 0.0023 0.0029 0.0028 0.0032
Feed (ipm)
20.6
26.5
33.3
33.8
34.1
27.5
23.5
HSM
≤ 0.05
≤ 2
630
RPM 19253
9626
6418
4813
3851
3209
2407
(504-756)
Fz
0.0007 0.0018 0.0034 0.0046 0.0057 0.0055 0.0064
Feed (ipm)
67.4
86.6
109.1
110.7
109.7
88.2
77.0
ALLOY STEELS
4140, 4150, 4320,
5120, 5150, 8630,
86L20, 50100
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.25
≤ 1.5
325
RPM 9932
4966
3311
2483
1986
1655
1242
(260-390)
Fz
0.0003 0.0007 0.0013 0.0017 0.0022 0.0021 0.0024
Feed (ipm)
12.9
17.4
21.5
21.1
21.9
17.4
14.9
HSM
≤ 0.05
≤ 2
530
RPM 16197
8098
5399
4049
3239
2699
2025
(424-636)
Fz
0.0005 0.0014 0.0026 0.0034 0.0043 0.0041 0.0048
Feed (ipm)
42.1
56.7
70.2
68.8
69.6
55.3
48.6
H
TOOL STEELS
A2, D2, H13, L2, M2,
P20, S7, T15, W2
≤ 375 Bhn
or
≤ 40 HRc
Profile
≤ 0.25
≤ 1.5
175
RPM 5348
2674
1783
1337
1070
891
669
(140-210)
Fz
0.0002 0.0005 0.0010 0.0013 0.0016 0.0017 0.0018
Feed (ipm)
5.3
6.7
8.9
8.7
8.6
7.6
6.0
HSM
≤ 0.05
≤ 2
290
RPM 8862
4431
2954
2216
1772
1477
1108
(232-348)
Fz
0.0004 0.0010 0.0019 0.0025 0.0032 0.0033 0.0035
Feed (ipm)
17.7
22.2
28.1
27.7
28.4
24.4
19.4
K
CAST IRONS
(LOW & MEDIUM
ALLOY)
Gray, Malleable,
Ductile
≤ 220 Bhn
or
≤ 19 HRc
Profile
≤ 0.25
≤ 1.5
470
RPM 14363
7182
4788
3591
2873
2394
1795
(376-564)
Fz
0.0004 0.0009 0.0017 0.0023 0.0029 0.0030 0.0032
Feed (ipm)
25.1
32.3
40.7
41.3
41.7
35.9
28.7
HSM
≤ 0.05
≤ 2
705
RPM 21545 10772
7182
5386
4309
3591
2693
(564-846)
Fz
0.0007 0.0018 0.0034 0.0046 0.0057 0.0059 0.0064
Feed (ipm)
75.4
97.0
122.1
123.9
122.8
105.9
86.2
CAST IRONS
(HIGH ALLOY)
Gray, Malleable,
Ductile
≤ 260 Bhn
or
≤ 26 HRc
Profile
≤ 0.25
≤ 1.5
360
RPM 11002
5501
3667
2750
2200
1834
1375
(288-432)
Fz
0.0003 0.0007 0.0013 0.0017 0.0022 0.0023 0.0024
Feed (ipm)
14.3
19.3
23.8
23.4
24.2
21.1
16.5
HSM
≤ 0.05
≤ 2
540
RPM 16502
8251
5501
4126
3300
2750
2063
(432-648)
Fz
0.0005 0.0014 0.0026 0.0034 0.0043 0.0044 0.0048
Feed (ipm)
42.9
57.8
71.5
70.1
71.0
60.5
49.5
M
STAINLESS STEELS
(FREE MACHINING)
303, 416, 420F,
430F, 440F
≤ 275 Bhn
or
≤ 28 HRc
Profile
≤ 0.25
≤ 1.5
370
RPM 11307
5654
3769
2827
2261
1885
1413
(296-444)
Fz
0.0003 0.0007 0.0013 0.0017 0.0022 0.0023 0.0024
Feed (ipm)
14.7
19.8
24.5
24.0
24.9
21.7
17.0
HSM
≤ 0.05
≤ 2
560
RPM 17114
8557
5705
4278
3423
2852
2139
(448-672)
Fz
0.0005 0.0014 0.0026 0.0034 0.0043 0.0044 0.0048
Feed (ipm)
44.5
59.9
74.2
72.7
73.6
62.7
51.3
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