tbt 3109-2005at钢轨

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1、ICS45.080TB中华人民共和国铁道行业标准TB/T3109-2005AT钢轨ATrails2005-03-29发布2005-07-01实施中华少L民共和国铁道部发布TB/T3109-2005目次前言·.................................................................................................................tu1范围·........................................................................

2、......................................12规范性引用文件·····························································································⋯⋯‘13术语和定义································································，························⋯⋯，.，...⋯⋯14Al’轨断面型式尺寸、几何特征、理论质量和长度····················

3、·························，········⋯⋯14.1AT轨断面型式尺寸···················································································⋯⋯14.2AT轨断面几何特征······················································································⋯⋯14.3A7，轨的理论质量及金属分配·········································

4、·································⋯⋯14.4AT轨的长度································································································⋯⋯15技术要求··································································，·····································⋯⋯35.1制造方法·······························

5、·························································，············⋯⋯35.2钢牌号和化学成分·························································································⋯⋯35.3交货状态·························································.····，································⋯⋯，··⋯35.4拉伸性能··

6、····························，·······································································一35.5踏面硬度···························································································.········⋯⋯45.6显微组织···········································································

7、···················，······⋯⋯45.7脱碳层·····································，··················⋯⋯，.···············....·········⋯⋯，..⋯⋯，45.8非金属夹杂物···························································································⋯⋯45