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ASTM A633 Grade C
Category Steel
Class Alloy steel
Designations United States: UNS K12000

Composition
ElementWeight %
C  0.20 (max) 
Mn  1.15-1.50 
P  0.04 
S  0.05 
Si  0.15-0.50 
Nb  0.01-0.05 

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  
Glossary