M-42 High Speed Tool Steel

 
M-42 High Speed Tool Steel

This Cobalt /Moly/Chrome High-Speed Steel finishes to very high red hardness, exhibits outstanding wear resistance and superior cutting performance.

                                                                                                                                                                                                                 Typical Applications:
Used in applications requiring maximum hardness, Broaches, Shaving Tools, Twist drills, Keyway Cutters, Cold Extrusion Punches, Form Cutters, Taps, Reamers, Roll Turning Tools, Counter Bores, Planer Tools and End mills. Produces superior cutting edges on all types of high-speed steels.
 
Specifications:
UNS Number T11342
AISI M-42
ASTM A600
 
Hardness:
Rc 63-65
 
Typical Chemical Composition
 

C

Cr

Mn 

Mo

P

S

Si

V

W

Co

1.05-1.15 

3.50-4.25 

0.15-0.40

9.0-10.0 

0.030 max

0.030 max

0.15-0.65

0.95-1.35

1.15-1.85

7.75-8.75