a572 gr 55 angle iron mill Acme Metals & Steel Supply, Inc.
ASTM A572-50 Angle Characteristics ASTM A572-50 is a high-strength, low-alloy (HSLA) columbium-vanadium steel. It has a higher yield and tensile strength, as compared to ASTM A36. The higher tensile strength of A572-50 allows reduction of section thickness and weight when manufacturing parts, therefore lowering the overall weight of the part.