Chemical Composition
Base Element
C (Carbon)
0.18 to 0.23
%    
Mn (Manganese)
0.5 to 0.7
%    
Mo (Molybdenum)
0.2 to 0.3
%    
Ni (Nickel)
3.25 to 3.75
%    
P (Phosphorus)
0.035
%  (maximum)  
S (Sulfur)
0.04
%  (maximum)  
Si (Silicon)
0.15 to 0.35
%    
Other elements
Si may be specified 0.10 max; may contain unspecified 0.35 Cu, 0.25 Ni, 0.20 Cr, 0.06 Mo
Composition Note
Si may be specified 0.10 max; may contain unspecified 0.35 Cu, 0.25 Ni, 0.20 Cr, 0.06 Mo
 
Mechanical Properties
Tabular Data
 
Other Information
Material Class
Alloy Family
Alloy Group
Alloy Sub-Group
Country
USA
Standards Body
Description
Alloy steel bar
Designation
Grade 4820
Specification Type
Specification
ASME SA29/SA29M
Specification Year
2011
Specification Status
Source
Organization
ASME International (ASME)
Available forms
Bar
Similar Alloys
 
Links
 



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