M42 HIGH-SPEED STEEL
    

COMPOSITION
%		   C Cr Mo W Co V
1.08 3.90 9.40 1.50 8.0 1.20
STANDARDS

AISA M42, W.Ne.3247, S10-1-8, SKH 59, 
ISO S12, AFNOR Z110DKCWV 9.8.4.2.1 
CONDITION AS    Soft-annealed   Max 270 HB
AS SUPPLIED Cold Drawn Max 320 HB
Cold Rolled Max 350 HV

  
M42 is a conventionally manufactured cobalt alloyed high-speed steel.  The various stages of the manufacturing process are chosen and controlled so that an end product is obtained with a good structure in terms of carbide size and distribution.  This is a distinct advantage for the finished tool.
 





     
 		M42 is characterised by

    all-round applicability
    good machine-ability
    good performance
    good hot hardness
    good wear resistance