Material: ASTM A757 Grade E1Q Description: Standard Specification for Steel Castings, Ferritic and Martensitic, for Pressure‐Containing and Other Applications, for Low‐Temperature Service Group Name: Ferrous Mild Steel Alloys Sub Group: ASTM A757 / A757M Ferritic and Martensitic Steel Castings for Pressure‐Containing and Low‐ Temperature Service Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Grade Standard: AS-AUSTRALIA