Chapter 9     Carbon & Alloy Steels - Machining Data

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 FACE MILLING DATA FOR MEDIUM CARBON ALLOY STEELS

 

 

 

High Speed Steel Tool

Coated Carbide Tool

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
1330, 1335, 175-225 0.040 170 0.008 M2, M7 825 0.008 CC-6
4028, 4037, HR, A, CD 0.150 130 0.012 M2, M7 550 0.012 CC-6
4130, 4137,   0.300 110 0.016 M2, M7 400 0.016 CC-5
4427, 4626, 225-275 0.040 145 0.007 M2, M7 750 0.007 CC-6
5130, 5135, A, N, CD, QT 0.150 105 0.010 M2, M7 500 0.010 CC-6
8625, 8630,   0.300 80 0.014 M2, M7 400 0.014 CC-5
8637, 94B30 275-325 0.040 100 0.006 T15, M42 700 0.005 CC-6
  N, QT 0.150 80 0.009 T15, M42 475 0.007 CC-6
    0.300 60 0.012 T15, M42 375 0.009 CC-5
  325-375 0.040 80 0.005 T15, M42 625 0.004 CC-6
  N, QT 0.150 60 0.008 T15, M42 400 0.006 CC-6
    0.300 15, M42 0.010 T15, M42 300 0.008 CC-5
  375-425 0.040 60 0.004 T15, M42 475 0.003 CC-6
  QT 0.150 50 0.006 T15, M42 325 0.005 CC-6
    0.300 40 0.008 T15, M42 250 0.007 CC-5
1340,1345, 175-225 0.040 175 0.008 M2, M7 825 0.008 CC-6
4042, 4047, HR, A, CD 0.150 135 0.012 M2, M7 570 0.012 CC-6
4140, 4147,   0.300 115 0.016 M2, M7 450 0.016 CC-5
4340, 50B46, 225-275 0.040 150 0.006 M2, M7 765 0.007 CC-6
5140, 5147, A, N, CD, QT 0.150 110 0.010 M2, M7 520 0.010 CC-6
81B45, 8640,   0.300 85 0.014 M2, M7 410 0.014 CC-5
8645, 86B45, 275-325 0.040 105 0.006 T15, M42 725 0.005 CC-6
8740, 8742 N, QT 0.150 85 0.009 T15, M42 485 0.007 CC-6
    0.300 65 0.012 T15, M42 375 0.009 CC-5
  325-375 0.040 80 0.005 T15, M42 630 0.004 CC-6
  N, QT 0.150 60 0.008 T15, M42 420 0.006 CC-6
    0.300 50 0.010 T15, M42 325 0.008 CC-5
  375-425 0.040 60 0.004 T15, M42 485 0.003 CC-6
  QT 0.150 50 0.006 T15, M42 345 0.005 CC-6
    0.300 40 0.008 T15, M42 265 0.007 CC-5
 a. Heat treatment abbreviations are as follows: HR - hot rolled; A - annealed; CD - cold drawn;  N - normalized; QT - quenched & tempered.
 b. Coated carbide tool material grades are designated by an additional prefix letter C, to distinguish it from the Industry Code system for
 uncoated carbide tools.

 

 The Ferrous Metals Data Book

prefix letter C, to distinguish it from the Industry Code system for  uncoated carbide tools.

 

 The Ferrous Metals Data Book