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HNM
Category Steel
Class Stainless steel
Type Austenitic nonstandard

Composition
ElementWeight %
C  0.30 
Mn  3.50 
Si  0.50 
Cr  18.5 
Ni  9.5 
P  0.25 

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) 825  25  aged at 705°C (bar, wire, forgings) 
Yield Strength (Mpa) 550 
Elongation (%) 18 
Reduction in Area (%) 30 
Glossary