O-1 Oil Hardening Tool Steel

O1 is a Manganese/Chromium/Tungsten Oil Hardening steel which has good machinability, good dimensional stability in hardening and high surface hardness and toughness. Provides deposits that are hard as welded, fine grained and heat treatable.

 

Typical applications:

 

Specifications:

UNS # T31501
AISI O-1

ASTM A681

 

Hardness:
Rc 55-60

 

 

Typical Chemical Composition

  

 

C	Cr	Mn	P	S	Si	V	W
.85-1.00	0.40-0.60	1.00-1.40	0.030 max	0.030 max	0.50 max	0.30 max	0.40-0.60