Chemical Composition
Base Element
C (Carbon)
0.08
%  (maximum)  
Cr (Chromium)
18.0 to 20.0
%    
Cu (Copper)
0.75
%  (maximum)  
Mn (Manganese)
1.00 to 2.50
%    
Mo (Molybdenum)
2.00 to 3.00
%    
Ni (Nickel)
11.0 to 14.0
%    
P (Phosphorus)
0.03
%  (maximum)  
S (Sulfur)
0.03
%  (maximum)  
Si (Silicon)
0.30 to 0.65
%    
Other elements
Nb+Ta 8xC-1.0
 
Mechanical Properties
Tabular Data
 
Other Information
Material Class
Country
USA
Standards Body
Description
Austenitic Cr-Ni-Mo Stainless Steel (Columbium Stabilized) Bare Filler Metal
Designation
UNS S31980
Specification Type
Specification
UNS S31980
Specification Year
2008
Specification Status
Similar UNS Number
S31980
Equivalent Standards
ASME SFA5.9 (ER318) AWS A5.9 (ER318) MIL SPECMIL-E-19933 (MIL-318) Other: ISO 14343B (S31980)
Organization
Unified Numbering System (joint publication of ASTM and SAE)
Similar Alloys
 
Links
 



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