What is ASTM A572 steel carbon content

ASTM A572 steel plate is Columbium Vanadium structural steel for use in general construction and structural applications. ASTM A572 steel plate is intended for riveted, bolted, or welded structures primarily in applications where extra strength or reduced end product weight is desired without foregoing strength. Some also called A572 steel carbon steel, which is mainly owe to ASTM A572 steel carbon content.

ASTM A572 steel carbon content varies with A572 grades level. For example, the ASTM A572 steel carbon content for grade 42 is 0.21% max., the ASTM A572 steel carbon content for grade 50 and grade 65 (plate with 13-32mm thickness) is 0.23% max., the ASTM A572 steel carbon content for grade 55 is 0.25% max., and the ASTM A572 steel carbon content for grade 60 and grade 65 (plate not thicker than 13mm) is 0.26% max..

The higher the carbon content, the higher the strength and hardness of the steel, but the plasticity and toughness will also be reduced; on the contrary, the lower the carbon content, the higher the plasticity and toughness of the steel, and the lower the strength and hardness.