Historical
SAE AMS 4921P-2020
Titanium Bars, Wire, Forgings, and Rings, Commercially Pure, 70 ksi (483 MPa) Yield Strength
This specification covers one grade of commercially-pure titanium in the form of bars, wire, forgings, flash welded rings, up to 4.000 inches (101.60 mm), inclusive, in nominal diameter or least distance between parallel sides, and stock for forging or flash welded rings.
Society of Automotive Engineers [sae]