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Category Steel
Class Alloy steel
Type H-steel
Common Names Boron steel
Designations  Germany: DIN 1.7138
Japan: JIS SUP 11
United States: ASTM A304 , SAE J1268 , UNS H50501

ElementWeight %
C  0.47-0.54 
Mn  0.65-1.10 
Cr  0.30-0.70 
P  0.035 
S  0.040 
Si  0.15-0.30 

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