Chemical Composition
Base Element
C (Carbon)
0.85 to 1.00
%    
Cr (Chromium)
0.40 to 0.60
%    
Mn (Manganese)
1.00 to 1.40
%    
P (Phosphorus)
0.030
%  (maximum)  
S (Sulfur)
0.030
%  (maximum)  
Si (Silicon)
0.50
%  (maximum)  
V (Vanadium)
0.30
%  (maximum)  
W (Tungsten)
0.40 to 0.60
%    
 
Mechanical Properties
Tabular Data
 
Other Information
Material Class
Country
USA
Standards Body
Description
Oil-Hardening Tool Steel (O-1)
Designation
UNS T31501
Specification Type
Specification
UNS T31501
Specification Year
2008
Specification Status
Similar UNS Number
T31501
Equivalent Standards
AISI 0-1 ASTM A681 (O-1) SAE J437 (O1); J438 (O1)
Organization
Unified Numbering System (joint publication of ASTM and SAE)
Similar Alloys
 
Links
 



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