Form: This specification covers a corrosion and heat resistant nickel alloy in the form of seamless tubing. Application: Primarily for parts requiring both corrosion and oxidation resistance@ and where such parts may require welding during fabrication. For parts requiring oxidation resistance up to 2000??(1093??@ but useful at the higher temperatures only when stresses are low. Strength at elevated temperatures is similar to that of the 18-8 type of steel.