Material: PN H 23 N 18 Description: Standard Specification for Austenitic Heat-Resisting Stainless Steels Group Name: Ferrous Stainless Steel Alloys Sub Group: PN H 23 N 18 Austenitic Heat-Resisting Stainless Steels Application: Intended for Valve, Pump, General Engineering, Automotive and Other Industries Standard: PN-POLAND