ASTM A49-2012 标准详情
- 标准号:ASTM A49-2012
- 中文标题:热处理碳素钢连接棒材,微合金连接棒材和法兰连接棒材的标准规格
- 英文标题:standard specification for heat-treated carbon steel joint bars, microalloyed joint bars, and forged carbon steel compromise joint bars
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2012-03-01
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
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