1.1 本规范规定了用于制造锻造产品的粗间距耐火精炼铜线棒、饼、板和坯料以及用于制造铜和铜合金铸件的锭和锭棒的要求。该铜不用于电气目的。 1.2 本规范中的铜对应于分类中所示的名称“FRTP”（UNS C12500） B224页 . 如果化学成分限值不低于中C12500所列的限值，则该铜也可用于生产其他牌号的铜 表1 . 1.3 尽管本规范包括实践中所述的某些UNS名称 E527 ，这些名称仅供交叉参考，不是规范要求。因此，如有冲突，应以本ASTM规范为准。 1.4 单位- 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 以下安全危险警告仅适用于本规范附件中所述的试验方法: 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制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。 1.6 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。 ====意义和用途====== 13.1 计算值应根据实际舍入方法舍入到表示极限值时使用的最后一个右侧有效数字中最近的单位 E29年 .

1.1 This specification establishes the requirements for tough-pitch fire-refined copper wire bars, cakes, slabs, and billets for fabricating into wrought products and ingot and ingot bars for use in the manufacture of copper and copper alloy castings. This copper is not intended for electrical purposes. 1.2 Copper under this specification corresponds to the designation “FRTP” (UNS C12500) as shown in Classification B224 . This copper may also be used to produce other designations of copper where the chemical composition limits are not lower then those listed for C12500 in Table 1 . 1.3 Although this specification includes certain UNS designations as described in Practice E527 , these designations are for cross reference only and are not specification requirements. Therefore, in case of conflict, this ASTM specification shall govern. 1.4 Units— The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 The following safety hazard caveat pertains only to the test method described in the annex of this specification: 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 to determine the applicability of regulatory limitations prior to use. 1.6 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. ====== Significance And Use ====== 13.1 Calculated values shall be rounded to the nearest unit in the last right-hand significant digit used in expressing the limiting value in accordance with the rounding method in Practice E29 .