ASTM A-36 is a structural quality carbon steel plates for use in welded or bolted construction of bridges and buildings, and for general structural purposes. Minimum yield strength of 36 ksi (250 MPa) is required to meet the requirements of A36. ASTM A36 plate is used in a variety of applications, which include, but are not limited to: railroad cars, trucks, agriculture equipment, trailers, construction equipment, buildings and bridges. High Strength/Low Alloy High-strength low-alloy steel (HSLA) is a type of alloy steel that provides greater resistance to corrosion than carbon steel. HSLA steels are not made to meet a specific chemical composition but rather to specific mechanical properties. Item Steel plate, Steel sheet, Mild steel sheet, Carbon steel sheet Standard ASTM A36 / A36M Thick and Chemical C…