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Chapter 9 Carbon & Alloy Steels -
Machining Data
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FACE MILLING DATA
FOR LOW CARBON ALLOY STEELS
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High Speed Steel Tool |
Coated Carbide Tool |
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Material |
Hardness HB |
Cut |
Speed |
Feed per |
Tool |
Speed |
Feed per |
Tool |
|
AISI |
Heat Treatmenta |
Depth in |
fpm |
Tooth in |
Material |
fpm |
Tooth in |
Materialb |
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4012, 4024, |
175-225 |
0.040 |
180 |
0.008 |
M2, M7 |
870 |
0.008 |
CC-6 |
|
4118, 4320, |
HR, A, CD |
0.150 |
140 |
0.012 |
M2, M7 |
665 |
0.012 |
CC-6 |
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4419, 4422, |
|
0.300 |
110 |
0.016 |
M2, M7 |
515 |
0.016 |
CC-5 |
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4615, 4620, |
225-275 |
0.040 |
150 |
0.006 |
M2, M7 |
765 |
0.007 |
CC-6 |
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4720, 4815, |
HR, N, A, CD |
0.150 |
110 |
0.010 |
M2, M7 |
585 |
0.010 |
CC-6 |
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4820, 5015, |
|
0.300 |
85 |
0.014 |
T15, M42 |
455 |
0.014 |
CC-5 |
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5115, 5120, |
275-325 |
0.040 |
105 |
0.006 |
T15, M42 |
630 |
0.005 |
CC-6 |
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6118, 8115, |
N, QT |
0.150 |
85 |
0.009 |
T15, M42 |
485 |
0.007 |
CC-6 |
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8617, 8620, |
|
0.300 |
65 |
0.012 |
T15, M42 |
375 |
0.009 |
CC-5 |
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9310, 94b17 |
325-375 |
0.040 |
85 |
0.005 |
T15, M42 |
500 |
0.004 |
CC-6 |
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N, QT |
0.150 |
65 |
0.008 |
T15, M42 |
350 |
0.006 |
CC-6 |
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|
0.300 |
50 |
0.010 |
T15, M42 |
275 |
0.008 |
CC-5 |
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375-425 |
0.040 |
65 |
0.004 |
T15, M42 |
425 |
0.003 |
CC-6 |
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QT |
0.150 |
50 |
0.006 |
T15, M42 |
275 |
0.005 |
CC-6 |
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0.300 |
40 |
0.008 |
T15, M42 |
200 |
0.007 |
CC-5 |
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a. Heat treatment abbreviations are as follows: HR - hot rolled; A -
annealed; CD - cold drawn; N - normalized; QT - quenched & tempered. |
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b. Coated carbide tool material grades are designated by an additional
prefix letter C, to distinguish it from the Industry Code system for |
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uncoated carbide tools. |
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