本规范涵盖适用于耐腐蚀和耐热钢、铁合金、钛和钛合金棒材和线材的既定制造公差。除非另有说明，这些公差适用于所有条件。术语“excl”仅适用于指定范围的较高数值。

This specification covers established manufacturing tolerances applicable to corrosion- and heat-resistant steel, iron alloy, titanium, and titanium alloy bars and wire. These tolerances apply to all conditions, unless otherwise noted. The term “excl” is used to apply only to the higher figure of the specified range.