Form:

This specification covers a corrosion and heat resistant steel in the form of sand castings.

Application:

Primarily for parts, such as nozzle diaphragm vanes, requiring both corrosion and heat resistance and which may be welded during fabrication. The steel is oxidation resistant up to 2000°F (1095°C) but is useful at the higher temperatures only when stresses are very low. Strength at elevated temperatures is similar to that of the 18Cr - 8Ni types.