本规范涵盖关键海水应用中使用的热加工和β-退火+α-β-退火钛合金Ti-5111（UNS R55111）棒（见6.5.3）和棒（见6.5.1）。本规范还包括热加工和β-退火+α-β-退火Ti-5111（UNS R55111）坯料（见6.5.2），尺寸不超过8.375英寸，用于关键海水应用。

This specification covers hot worked and beta annealed plus alpha-beta annealed titanium alloy Ti-5111 (UNS R55111) rod (see 6.5.3) and bar (see 6.5.1) for use in critical seawater applications. This specification also covers hot worked and beta annealed plus alpha-beta annealed Ti-5111 (UNS R55111) billet (see 6.5.2) in sizes up to and including 8.375 inches thick for use in critical seawater applications.