1.1 本规范涵盖指定的镁合金锻件，如 表1 . （A） 限值以最大重量百分比表示，除非显示为范围或另有说明。 （B） 这些合金名称是根据实践确定的 B951 . （C） 包括未显示具体限制的列出元素。 1.2 标准值以英寸-磅为单位。括号中的SI值仅供参考。 1.3 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This specification covers magnesium alloy forgings designated as shown in Table 1 . (A) Limits are in weight percent maximum unless shown as a range or stated otherwise. (B) These alloy designations were established in accordance with Practice B951 . (C) Includes listed elements for which no specific limit is shown. 1.2 The values stated in inch-pound units are the standard. The SI values in parentheses are provided for information only. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.