1.1 本规范规定了适用于高速螺杆加工或一般应用的C14500、C14510、C14520、C14700和C18700号UNS合金的易切削铜棒、铜棒、铜线和形状的要求。 1.2 通常，按照本规范制造的产品以直线长度提供。尺寸 1. / 2. 在里面[12 mm]及以下可按要求成卷提供。 1.3 单位- 以国际单位制或英寸-磅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。 1.4 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 free-cutting copper rod, bar, wire, and shapes of UNS Alloy Nos. C14500, C14510, C14520, C14700, and C18700, suitable for high-speed screw machine work or for general applications. 1.2 Typically, product made to this specification is furnished as straight lengths. Sizes 1 / 2 in. [12 mm] and under may be furnished in coils when requested. 1.3 Units— The values stated in either SI units or inch-pound 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. 1.4 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.