1.1 本规范规定了通用铜合金UNS编号C70600、C70620、C71500、C71520、C74500、C75200、C75700、C76400、C77000和C79200生产的铜镍锌和铜镍棒和棒的要求。 1.1.1 铜合金UNS编号C70620和C71520用于焊接应用。 1.1.2 单位- 以英寸-磅单位或国际单位表示的数值应单独视为标准值。在本文中，国际单位制显示在括号中。每个系统中规定的值不一定是精确的等价物；因此，为确保符合本标准，每个系统应独立使用，且两个系统的值不得组合。 注1: 铜镍锌合金线的要求见规范 B206/B206M . 1.2 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 establishes the requirements for copper-nickel-zinc and copper-nickel rod and bar for general application produced from Copper Alloy UNS Nos. C70600, C70620, C71500, C71520, C74500, C75200, C75700, C76400, C77000, and C79200. 1.1.1 Copper Alloys UNS Nos. C70620 and C71520 are for product intended for welding applications. 1.1.2 Units— The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. Note 1: Requirements for copper-nickel-zinc alloy wire appear in Specification B206/B206M . 1.2 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.