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ASTM A387 Grade 2
Category Steel
Class Alloy steel
Designations United States: UNS K12143

Composition
ElementWeight %
C  0.21 
Mn  0.55-0.80 
P  0.035 
S  0.040 
Si  0.15-0.30 
Cr  0.50-0.80 
Mo  0.45-0.60 

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