1.1 本规范涵盖锅炉、压力容器和相关设备的铁素体/奥氏体（双相）不锈钢锻件，其等级也可在本规范中找到 182/1.82亿澳元 . 1.2 买方可在订单或合同中规定规范中提供的任何适当的补充要求 A788/A788米 . 1.3 除非订单规定了适用的“M”规格名称，否则材料应按英寸磅单位提供。 1.4 以英寸磅或国际单位制（公制）表示的数值应单独视为标准。在文本和表格中，国际单位制单位显示在括号中。每个系统中规定的值可能不是精确的等效值；因此，每个系统应独立于其他系统使用。将两个系统的值组合在一起可能会导致不符合规范。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《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 ferritic/austenitic (duplex) stainless steel forgings for boilers, pressure vessels, and associated equipment in grades that are also found in Specification A182/A182M . 1.2 The purchaser may specify in the order or contract any appropriate supplementary requirements that are provided in Specification A788/A788M . 1.3 Unless the order specifies the applicable “M” specification designation the material shall be furnished to the inch-pound units. 1.4 The values stated in either inch-pound or SI (metric) units are to be regarded separately as standard. Within the text and tables, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. 1.5 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.