This specification covers a titanium alloy in the form of bars, wire, forgings, flash welded rings 4.000 inches (101.60 mm) and under in nominal diameter or least distance between parallel sides and stock of any size for forging or flash welded rings (see 8.8).
SAE AMS4979K-2022 history
2022SAE AMS4979K-2022 Titanium Alloy, Bars, Wire, Forgings, and Rings 6Al - 6V - 2Sn Solution and Precipitation Heat Treated