Chapter 9     Carbon & Alloy Steels - Machining Data

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TURNING DATA FOR MEDIUM CARBON 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
1030, 1033, 125-175 0.040 140 0.007 M2, M3 925 0.007 CC-7
1035, 1037, HR, N, A, CD 0.150 115 0.015 M2, M3 600 0.015 CC-6
 1038, 1039,   0.300 90 0.020 M2, M3 475 0.020 CC-6
1040, 1042,   0.625 70 0.030 M2, M3 --- --- ---
1043, 1044, 175-225 0.040 130 0.007 M2, M3 785 0.007 CC-7
1045, 1046, HR, N, A, CD 0.150 100 0.015 M2, M3 525 0.015 CC-6
1049, 1050,   0.300 85 0.020 M2, M3 415 0.020 CC-6
1053, 1055,   0.625 65 0.030 M2, M3 --- --- ---
  225-275 0.040 115 0.007 M2, M3 750 0.007 CC-7
  HR, N, A, CD, QT 0.150 90 0.015 M2, M3 500 0.015 CC-6
    0.300 70 0.020 M2, M3 400 0.020 CC-6
    0.625 55 0.030 M2, M3 --- --- ---
  275-325 0.040 100 0.007 T15, M42 700 0.007 CC-7
  HR, N, A, QT 0.150 75 0.015 T15, M42 450 0.015 CC-6
    0.300 60 0.020 T15, M42 375 0.020 CC-6
    0.625 --- --- --- --- --- ---
  325-375 0.040 70 0.007 T15, M42 575 0.007 CC-7
  QT 0.150 55 0.015 T15, M42 375 0.015 CC-6
    0.300 45 0.020 T15, M42 315 0.020 CC-6
    0.625 --- --- --- --- --- ---
  375-425 0.040 60 0.007 T15, M42 475 0.007 CC-7
  QT 0.150 45 0.015 T15, M42 300 0.015 CC-6
    0.300 35 0.020 T15, M42 250 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