1.1 本规范规定了用于热锻的铜和铜合金棒、棒和形状的要求。涉及以下铜和铜合金: 铜UNS编号。 铜合金 UNS编号。 铜合金 EN 1412号。 C11000 C27450 C49350 CW612N C14500 C27451 C49355 CW617N C14700 C27453 C49360 C28500 C61900 C35330 C62300 C36300 C63000 C36500 C63200 C37000 C64200 C37700 C64210 C46400 C65500 C46500 C65680 C46750 C67500 C48200 C67600 C48500 C69150 C48600 C69240 C48640 C69300 C48645 C69410 C49250 C69850 C49255 C70620 C49260 C71520 C49265 C77400 C49300 C87700 C49340 C87710 C49345 注1: 有关锻造实践和由这些合金生产的锻件的更多信息，请参见 附录X1 并符合规范 B283/B283M . 1.2 单位- 以国际单位制或英寸表示的数值- 磅单位应单独视为标准单位。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。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管要求的适用性。 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 copper and copper alloy rod, bar, and shapes intended for hot forging. The following coppers and copper alloys are involved: Copper UNS Nos. Copper Alloy UNS Nos. Copper Alloy EN 1412 Nos. C11000 C27450 C49350 CW612N C14500 C27451 C49355 CW617N C14700 C27453 C49360 C28500 C61900 C35330 C62300 C36300 C63000 C36500 C63200 C37000 C64200 C37700 C64210 C46400 C65500 C46500 C65680 C46750 C67500 C48200 C67600 C48500 C69150 C48600 C69240 C48640 C69300 C48645 C69410 C49250 C69850 C49255 C70620 C49260 C71520 C49265 C77400 C49300 C87700 C49340 C87710 C49345 Note 1: Additional information about forging practice and forgings produced from these alloys is given in Appendix X1 and in Specification B283/B283M . 1.2 Units— The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory requirements prior to use. 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.