SH/T 3525-2015 石油化工低温钢焊接规范.pdf

ICS25.160 P72 备案号：J2097-2015 SHI 中华人民共和国石油化工行业标 工程技术部 2016.03.18 SH/T3525—2015 韦开棣 已批准 可公布 代替SH/T3525一2004 石油化工低温钢焊接规范 Welding specification of low temperature steel in petrochemical industry 2015-04-30发布 2015-05-01实施 中华人民共和国工业和信息化部发布 SH/T3525—2015 目 次 前言 1范围 1 2规范性引用文件 1 3术语和定义 2 4材料验收 2 4.1一般规定 -2 4.2钢材验收 2 4.3低温冲击初性试验 3 4.4焊接材料验收 3 4.5材料管理 4 5焊工资格和焊接工艺评定 4 6焊前准备 5 6.1坡口制备 5 6.2组对定位 5 7焊接工艺 7 7.1一般规定 7 7.2预热 7 7.3焊接 8 8焊后热处理 -8 9焊接检验 8 9.1外观检查 8 9.2无损检测 9 10焊缝返修 9 附录A(资料性附录)国内常用低温钢板、钢管及锻件低温冲击试验10 附录B(资料性附录)美国(ASME)常用低温钢板、钢管、锻件l1 附录C(资料性附录)日本常用低温钢板、钢管、锻件15 附录D(资料性附录)常用低温钢焊接材料选用 17 附录E(资料性附录)常用低温钢焊接材料化学成分18 附录F(资料性附录)AWS常用低温焊条 22 附录G(资料性附录)AWS常用低温焊丝 23 附录H(资料性附录)低温用焊条冲击试验规定25 本规范用词说明 28 附：条文说明 .29 SH/T3525—2015 Contents Foreword 1 Scope 2 Normative documents quoted........................... 3 Terms and definitions 4 Material inspection and acceptance 2 4.1 General specifications. 2 4.2 Material inspection and acceptance ............................. 2 4.3 The low temperature impact toughness test3 4.4 Welding material inspection and acceptance 3 4.5 Material management 4 5 Welder qualification and welding procedure qualifications ............................................. 6 Welding preparation 5 6.1 Groove processing5 6.2 Assembly of joints. 5 7 Welding procedure 7 7.1 General specifications 7 7.2 Preheating 7.3 Welding 8PWHT 9 Welding inspection 8 9.1 Visual examination 8 9.2 NDT 10 Weld repair Annex A(Informative)Common low temperature steel plates steel pipes and forgings in domestic.lO Annex B(Informative)Common low temperature steel plates steel pipes forgings in US(ASME)ll Annex C(Informative)Common low temperature steel plates steel pipes forgings in Japanl5 Annex D(Informative)Common low temperature steel welding materials selection'l7 Annex E...