1.1 本规范涵盖哈德菲尔德奥氏体锰钢铸件和合金改性。 1.2 以英寸-磅单位或国际单位制单位表示的值应单独视为标准值。在正文中，国际单位制单位显示在括号中。每个系统中陈述的值并不完全等同；因此，每个系统必须独立使用。合并两个系统的值可能导致不符合规范。 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》中确立的国际公认的标准化原则制定的。

1.1 This specification covers Hadfield austenitic manganese steel castings and alloy modifications. 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 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.