Chapter 9     Carbon & Alloy Steels - Machining Data

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TURNING DATA FOR LOW CARBON ALLOY STEELS

 

 

 

High Speed Steel Tool

Coated Carbide Tool

Material

Hardness HB

Cut

Speed

Feed

Tool

Speed

Feed

Tool

AISI Heat Treatmenta Depth in fpm ipr Material fpm ipr Materialb
4012, 4024, 175-225 0.040 135 0.007 M2, M3 725 0.007 CC-7
4118, 4320, HR, A, CD 0.150 105 0.015 M2, M3 575 0.015 CC-6
4619, 4422,   0.300 80 0.020 M2, M3 450 0.020 CC-6
4615, 4620,   0.625 65 0.030 M2, M3 --- --- ---
4820, 5015, 225-275 0.040 110 0.007 M2, M3 650 0.007 CC-7
5115, 5120, HR, N, A, CD 0.150 65 0.015 M2, M3 500 0.015 CC-6
6118, 8115,   0.300 65 0.020 M2, M3 400 0.020 CC-6
8617, 8620,   0.625 50 0.030 M2, M3 --- --- ---
9310, 94B17 275-325 0.040 95 0.007 T15, M42 575 0.007 CC-7
  N, QT 0.150 75 0.015 T15, M42 450 0.015 CC-6
    0.300 60 0.020 T15, M42 350 0.020 CC-6
    0.625 --- --- --- --- --- ---
  525-375 0.040 80 0.005 T15, M42 475 0.007 CC-7
  N, QT 0.150 60 0.010 T15, M42 375, 0.015 CC-6
    0.300 45 0.025 T15, M42 300 0.020 CC-6
    0.625 --- --- --- --- --- ---
  375-425 0.040 65 0.005 T15, M42 375 0.007 CC-7
  QT 0.150 50 0.010 T15, M42 300 0.015 CC-6
    0.300 40 0.015 T15, M42 225 0.020 CC-6
    0.625 --- --- --- --- --- ---

 a. Heat treatment abbreviations are as follows: HR - hot rolled; A - annealed; N - Normalized; CD - cold drawn; QT - quenched & tempered.

 b. Coated carbide tool material grades are designated by an prefix letter C, to distinguish it from the Industry Code system for

 uncoated carbide tools.

 

 The Ferrous Metals Data Book

 uncoated carbide tools.

 

 The Ferrous Metals Data Book