Chapter 16      Stainless Steels - Machining Data

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 FACE MILLING DATA FOR MARTENSITIC STAINLESS STEELS

 

Hardness HB

 

High Speed Steel Tool

Coated Carbide Tool
Material Heat Cut Speed Feed per Tool Speed Feed per Tool
AISI Treatmenta Depth in fpm Tooth in Material fpm Tooth in Materialb
 403, 410 175-225 0.040 145 0.008 M2, M7 765 0.008 CC-6
 420, 422 A 0.150 115 0.012 M2, M7 500 0.012 CC-6
 501, 502   0.300 90 0.016 M2, M7 375 0.016 CC-5
  275-325 0.040 100 0.006 T15, M42 625 0.005 CC-6
  QT 0.150 75 0.009 T15, M42 400 0.007 CC-6
    0.300 60 0.012 T15, M42 315 0.009 CC-5
  375-425 0.040 60 0.004 T15, M42 300 0.003 CC-6
  QT 0.150 45 0.006 T15, M42 200 0.005 CC-6
    0.300 35 0.008 T15, M42 150 0.007 CC-6
 440A, 440B, 225-275 0.040 105 0.006 M2, M7 700 0.007 CC-6
 440C A 0.50 80 0.010 M2, M7 465 0.010 CC-6
    0.300 60 0.014 M2, M7 365 0.014 CC-5
  275-325 0.040 80 0.006 T15, M42 625 0.005 CC-6
  QT 0.150 60 0.009 T15, M42 400 0.007 CC-6
    0.300 45 0.012 T15, M42 300 0.009 CC-5
 a. Heat treatment abbreviations are as follows: A - annealed; QT - quenched & tempered.
 b. Coated carbide tool material grades are designated by additional prefix letter C, to distinguish it from the Industry Code system for
 uncoated carbide tools.
 

 The Ferrous Metals Data Book

 

 The Ferrous Metals Data Book