ASTM A242 high strength low alloy structure steel
https://www.fushunspecialsteel.com/wp-content/uploads/2015/09/ASTM-A242-high-strength-low-alloy-structure-steel.pdf
ASTM A242 high strength low alloy structure steel
https://www.fushunspecialsteel.com/wp-content/uploads/2015/09/ASTM-A242-high-strength-low-alloy-structure-steel.pdf