SYT5257-2004油气输送用钢制弯管.pdf

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1、ICS75.180;77.140.75E98;H铭备案号:14027-2004SY中华人民共和国石油天然气行业标准SY/T5257-2004代替SY/T5257-91油气输送用钢制弯管Steelbendforoilandgastransmission2004一07一03发布2004一11一01实施国家发展和改革委员会发布SY门5257-2004目次前言··················································································································

2、⋯⋯I1范围·················································································································一12规范性引用文件········································································........···.····⋯⋯13术语和定义·································································

3、··················..................⋯⋯24符号···············································································································⋯⋯35弯管设计计算··································，··············································........⋯⋯，.，··⋯46由购方提供的信息·····················

4、·································································.......⋯⋯47制造···················································，···························································⋯⋯58试验和检验················································································.............

5、.......⋯⋯89检测文件·······················································································，··············⋯⋯2110标志·········································································································，⋯⋯2111弯管的运输、储存及防护···········································

6、·····················..............⋯⋯22SY/T5257-2004前言本标准非等效采用国际标准ISO15590.1:2001《石油天然气工业用于管道输送系统的感应弯管管件及法兰第1部分:感应弯管》。本标准代替SY/T5257-91《钢制弯管》。本标准与SY/T5257-91相比，主要变化如下:—对标准名称、适用范围、规范性引用文件、符号、检验、标志、弯管装运等进行了修订;—增加了弯管等级、术语和定义、弯管设计计算、由购方提供的信息、制造及制造工艺规范(MPS)、静水压试验、检测文件等内容。本标准由石油管材专业标准化委员会提出并归口。本标准

7、主要起草单位:中国石油集团工程设计有限责任公司西南分公司(原四川石油勘察设计研究院)。本标准参加起草单位:中国石油天然气集团公司管材研究所、四川石油天然气建设工程有限责任公司容器厂、中油气管道局机械厂。本标准主要起草人:张有渝、李平全、黄敏、刘清文、张文生、常增顺。本标准所代替标准的历次版本发布情况为:—SY/T5257-91。SY门5257-2004油气输送用钢制弯管1范围本标准规定了石油天然气管道输送系统中用碳钢及低合金钢无缝钢管和焊接钢管以感应加热弯制工艺制作的弯管交货技术条件。本标准根据GB/T