Material: DIN X 5 CrNiCuNb 16-4 Description: Standard Specification for Martensitic, Precipitation Hardening, Stainless Steels Group Name: Ferrous Stainless Steel Alloys Sub Group: DIN X 5 CrNiCuNb 16-4 Martensitic, Precipitation Hardening, Stainless Steels Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: DIN-GERMANY