Chemical Composition
Base Element
C (Carbon)
1.25 to 1.50
%    
Fe (Iron)
91 to 93.3
%    (estimate)
Mn (Manganese)
1.6 to 2.1
%    
Mo (Molybdenum)
1.25 to 1.75
%    
Ni (Nickel)
1.55 to 2.05
%    
P (Phosphorus)
0.03
%  (maximum)  
S (Sulfur)
0.03
%  (maximum)  
Si (Silicon)
1 to 1.5
%    
Composition Note
(1) Chemistry limits include product analysis tolerances.
(2) Where specified, sulfur may be 0.060.15 % to improve machinability. Fe is listed as a Base element for this material, but its % value is not listed in the specification. The value shown is a calculated one.
 
Mechanical Properties
Tabular Data
Rockwell Hardness C scale
59
 (minimum)  
 
Other Information
Alloy Family
Alloy Group
Country
USA
Standards Body
Description
Alloy cold-work tool steel.
Specification Type
Equivalent Standards
EN ISO 4957:1999, NF EN ISO 4957:2, DIN EN ISO 4957:21, UNI EN ISO 4957:22, UNE EN ISO 4957:2, BS EN ISO 4957:2, ISO 4957:1999, JIS G 444:215, JIS G 771:2, SAE J438:197
Organization
ASTM
Available forms
Similar Alloys
 



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