Material: IS 4131 NiCu31Mn1Si1Fe Description: Standard Specification for Nickel Copper Alloy Castings Group Name: Non-Ferrous Nickel Alloys Sub Group: IS 4131 NiCu31Mn1Si1Fe Nickel Copper Alloy Castings Application: Intended for Valve, Pump, General Engineering, Automotive and other Industries Standard: IS-INDIA