Material: ASTM A732 Grade 31 Description: Standard Specification for Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures Group Name: Non Ferrous Cobalt Alloys Sub Group: ASTM A732 / A7323M Casting, Investment, Carbon and Low Alloy Steel for General Application Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: AS-AUSTRALIA