What is ASTM A709 grade 50 yield strength

ASTM A709 grade 50 steel is a kind of structural steel for bridge, and it is also known as high strength low alloy steel. The min. ASTM A709 grade 50 yield strength is 345 Mpa. ASTM A709 grade 50 steel is widely used in engineering structures, such as building steel structure, construction machinery, mining machinery, truck, bridge, pressure vessel, etc.

ASTM A709 grade 50 steel properties - ASTM A709 grade 50 yield strength:

Thanks to ASTM A709 grade 50 yield strength and so on properties, A709 grade 50 steel is especially excellent for the construction and engineering machinery parts with good weldability and toughness requirements.