首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 ASTM A49-12(2019)
到馆提醒
收藏跟踪
购买正版
Standard Specification for Heat-Treated Carbon Steel Joint Bars, Microalloyed Joint Bars, and Forged Carbon Steel Compromise Joint Bars 热处理碳钢连接杆、微合金连接杆和锻制碳钢折衷连接杆的标准规范
发布日期: 2019-03-01
1.1 本规范涵盖了标准铁路轨道中通用的热处理碳钢连接杆、微合金连接杆和锻造折衷连接杆。 1.2 接头条可用于生产绝缘接头。 1.3 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。 1.4 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 covers heat-treated carbon steel joint bars, microalloyed joint bars, and forged compromise joint bars for general use in standard railroad track. 1.2 The joint bars may be used for the production of insulated joints. 1.3 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. 1.4 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.
分类信息
关联关系
研制信息
归口单位: A01.01
相似标准/计划/法规