Form This specification covers a corrosion and heat resistant nickel alloy in the form of welding wire. Application This wire has been used typically as filler metal for gas-tungsten-arc or gas-metal-arc welding of precipitation-hardenable@ corrosion and heat resistant nickel alloys of similar composition where the weld area is required to have strength and corrosion resistance comparable to those of the base metal@ but usage is not limited to such applications.