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904L
Category Steel
Class Stainless steel
Type Austenitic nonstandard
Designations United States: UNS N08904, ASTM B625

Composition
ElementWeight %
C  0.02 
Mn  2.00 
Si  1.00 
Cr  19.0-23.0 
Ni  23.0-28.0 
P  0.045 
S  0.035 
Mo  4.0-5.0 
Cu  1.0-2.0 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 490  25  annealed (bar, plate, sheet, strip) 
Yield Strength (Mpa) 220 
Elongation (%) 35 
Reduction in Area (%)  
Hardness (HRB) 95 (max)  25  annealed (bar, plate, sheet, strip) 
Glossary