Chapter 16      Stainless Steels - Machining Data

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 TURNING DATA FOR CAST PRECIPITATION HARDENING STAINLESS STEELS

 

Hardness HB

 

High Speed Steel Tool

Coated Carbide Tool
Material Heat Cut Speed Feed Tool Speed Feed Tool
AISI Treatmenta Depth in fpm lpr Material fpm lpr Materialb
 CD-4MCu, 325-375 0.040 55 0.007 T15, M42 400 0.007 CC-7
CB-7Cu ST 0.150 45 0.015 T15, M42 350 0.015 CC-6
    0.300 35 0.020 T15, M42 250 0.020 CC-6
    0.625 --- --- T15, M42 --- --- ---
  400-450 0.040 40 0.007 T15, M42 250 0.005 CC-7
  STH 0.150 35 0.015 T15, M42 225 0.010 CC-6
    0.300 25 0.020 T15, M42 175 0.015 CC-6
    0.625 --- --- T15, M42 --- --- ---
 a. Heat treatment abbreviations are as follows: ST - solution treated; STH - solution treated and hardened..
 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

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 The Ferrous Metals Data Book