Historical
SAE AMS 6921C-2019
Titanium Alloy Bars, Forgings and Forging Stock, 3Al - 8V - 6Cr - 4Mo - 4Zr, Solution Heat Treated and Aged
This specification covers a titanium alloy in the form of bars up through 4.000 inches (101.60 mm) in nominal diameter or least distance between parallel sides, inclusive, forgings of thickness up through 4.000 inches (101.60 mm), inclusive, and stock for forging of any size (see 8.6).
Society of Automotive Engineers [sae]