SAE AMS 4921M
This specification covers one grade of commercially-pure titanium in the form of bars, wire, forgings, flash welded rings, and stock for forging or flash welded rings.These products have been used typically for parts requiring high corrosions resistance and moderate strength up to 400 mDF (204 mDC) and oxidation resistance up to 600 mDF (316 mDC), but usage is not limited to such applications.