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AISI 51B60H
Category Steel
Class Alloy steel
Type H-steel
Common Names Boron steel
Designations  United States: ASTM A304 , SAE J1268 , UNS H51601

Composition
ElementWeight %
C  0.55-0.65 
Mn  0.65-1.10 
Cr  0.60-1.00 
P  0.035 
S  0.040 
Si  0.15-0.30 
B  0.0005-0.003 

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) 724  25  annealed at 815°C  more
Yield Strength (Mpa) 275 
Elongation (%) 17.2 
Reduction in Area (%) 31 
Hardness (HB) 197  25  annealed at 815°C more
Glossary