Material: ASTM A990 Grade CK3MCuN Description: Standard Specification for Castings, Iron‐Nickel‐Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service Group Name: Ferrous Stainless Steel Alloys Sub Group: : ASTM A990 / A990M for Castings, Iron‐Nickel‐Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Grade Standard: AS-AUSTRALIA