SAE AMS5384F
Alloy Castings, Investment, Corrosion and Heat Resistant 53Ni - 18Cr - 18Co - 4.0Mo - 2.9Ti - 2.9Al - 0.006B Vacuum-Melted, Vacuum-Cast, Solution and Precipitation Heat Treated (Stabilized: Apr 2017)
standard by SAE International, 04/04/2017