Material: ASME SA-351 Grade CK20 Description: Standard Specification for Austenitic Stainless and Austenitic Ferritic Steel Rolled Tubes for Pressure Service Group Name: Ferrous Stainless Steel Alloys Sub Group: ASME SA-351 Grade CK20 Austenitic Stainless and Austenitic Ferritic Steel Rolled Tubes for Pressure Service Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: AS-AUSTRALIA