本规范涵盖了棒材、锻件和锻件或镦锻用坯料形式的耐腐蚀耐热镍合金。主要用于涡轮叶片、螺栓和配件等零件，要求高强度高达1600华氏度（870摄氏度），抗氧化性高达1800华氏度（980摄氏度）。自1987年10月16日起，SAE航空航天材料部已宣布本规范为“非现行”。因此，建议本规范不适用于新设计。

This specification covers a corrosion and heat resistant nickel alloy in the form of bars, forgings, and stock for forging or heading. Primarily for parts, such as turbine blades, bolts, and fittings, requiring high strength up to 1600 degrees F (870 degrees Centigrade) and oxidation resistance up to 1800 degrees F (980 degrees C). This specification has been declared "Noncurrent" by the Aerospace materials Division, SAE, as of October 16, 1987. It is recommended, therefore, that this specification not be specified for new designs.