Form This specification covers a titanium alloy in the form of forgings and forging stock up through 4.0 inches (102 mm) and under in nominal diameter or least distance between parallel sides and 16 in2 (103 cm2) and under in cross-sectional area Application These forgings have been used typically for parts requiring strength up to 800 ??(427 ?? and that may be welded during fabrication@ but usage is not limited to such applications