Structural HSLA steel ASTM A572 grade 50 chemical composition

Structural HSLA steel ASTM A572 grade 50 is a material grade and designation defined in ASTM A572 standard for structural applications.

Structural HSLA steel ASTM A572 grade 50 chemical composition is defined in the ASTM A572 standard as under:
Maximum percentage of Carbon (C) is 0.23
Maximum percentage of Manganese (Mn) is 1.35
Maximum percentage of Phosphorous (P) is 0.040
Maximum percentage of Sulphur (S) is 0.050
Maximum percentage of Silicon (Si) is 0.35
Remaining is iron (Fe) percentage and with few negligible impurities.

Structural HSLA steel ASTM A572 grade 50 is the most commonly used steel of ASTM A572.  with lower weight, higher yield and tensile strength than A36 plate, structural HSLA steel ASTM A572 grade 50 is a common choice for structural steel in the construction of bridges, buildings, and construction equipment. The structural HSLA steel ASTM A572 grade 50 plate thickness as defined in the ASTM A572 starts from 10 mm to 60 mm.