Standard number: A572/A572M-15
Chemical Composition:
– The steel grade A572/A572M-15 contains carbon, manganese, phosphorus, sulfur, silicon, and copper as the main chemical elements.
– The maximum carbon content is 0.23%.
– The maximum manganese content is 1.35%.
– The maximum phosphorus content is 0.04%.
– The maximum sulfur content is 0.05%.
– The maximum silicon content is 0.40%.
– The maximum copper content is 0.60%.
Mechanical Properties:
– The steel grade A572/A572M-15 has a minimum yield strength of 345 MPa (50 ksi).
– The minimum tensile strength is 450 MPa (65 ksi).
– The elongation at failure is 18% to 22%.
– The impact toughness is measured at room temperature and should have a minimum value of 27 Joules (20 ft-lbf) for Charpy V-notch impact testing.
Key Features:
– A572/A572M-15 is a high-strength low-alloy structural steel grade.
– It provides good weldability, machinability, and formability.
– It is commonly used in construction applications such as bridges, buildings, and structural members.
– It offers improved atmospheric corrosion resistance compared to carbon steel.
– It can be heat treated to enhance its mechanical properties.
– It is available in different forms, including plates, bars, sheets, and structural shapes.