本规范涵盖标称直径小于等于4.000英寸（101.60毫米）或平行面之间最小距离小于等于16平方英寸（103平方厘米）且横截面积小于等于16平方英寸（103平方厘米）的棒材、线材、闪光焊环的钛合金，以及闪光焊环的任何尺寸的库存。

This specification covers a titanium alloy in the form of bars, wire, flash welded rings 4.000 inches (101.60 mm) and under in nominal diameter or least distance between parallel sides and 16 in2(103 cm2) and under in cross-sectional area, and stock of any size for flash welded rings.