GroupStandard
T/DASIV006-2024(EN)
Specificationforshieldedmetalarc weldingofheavythicknessP91steel fornuclear engineering
核工程用大厚度P91钢管焊条电弧焊焊接工艺规范
(English translation)
Issued by Development Association of Steel Industry Value Chainin Yangtze River Delta Region
CONTENTS
Foreword. .1111Scope.2Normative References. 13Terms and Definitions...4 General Requirements14.1Personnel.4.2Equipment. 24.3 Materials. 24.4Welding Environment 24.5Welding Procedure Documents... 25 Welding Procedure Requirements.. 25.1 Groove Preparation... 25.2Drying of Welding Materials.. 35.3Tacking Welding. 35.4 Preheating .35.5 Welding 45.6 Post-weld heat treatmentAnnex A (lnformative)Welding Procedure Specification (WPS) . 6Annex B (Informative)Welding Record Sheet.
Foreword
This document is drafted in accordance with the rules given in the GB/T 1.1-2020Directives for Standardization Part 1: Rules for Structure and Drafting of Standardization Documents.
Appendices A and B are informative.
patents. The issuing organization shall not be held responsible for identifying such Attention is drawn to the possibility that some contants of this document may involvepatents.
This document is proposed and administered by the Development Association of SteelIndustry Value Chain in Yangtze River Delta Region which is also responsible for itsand provide feedback or suggestions to the Standardization Committee of theAssociation (email: dasiv2020@).
Drafting Organizations:
Design Co. Ltd.
Co-lead organizations: Daye Special Steel Co. Ltd. Tongling Science & TechnologySchool.
Participating organizations: Jiangsu University Tianjin University China Nuclear Industry23 Construction Co. Ltd.
Drafting Committee:
Chief Editors: Cong Wang Yingchao Feng
Deputy Editors: Guanghui Liu Yimin Yang Jinping Liu
Members: Zhengman Gu Fuhua Li Ming Zhong Zhibao Zhu Yinchuan Cui Jun Zhang Shaojie Wu Cancan Yan Ke Han Hongliang Li Yue Gao Peng Chen Xiaodong Zhang Jingxin Ren Chuang Wu Weiguan Zhang Ji Gao Yehua Wu.
thicknessP91steelfornuclearengineering
Specificationforshieldedmetalarcweldingofheavy
1Scope
welding (SMAW) of Pg1 steel pipes used in nuclear engineering. This document specifies the general and process requirements for shielded metal arc
It applies to P91 steel pipes with wall thicknesses from 38 mm to 64 mm.
2 Normative References
The following documents are indispensable for the application of this document. Fordated references only the edition applies. For undated references the latest edition (including all amendments) applies.
GB/T 985.1 Remended joint preparation for gas welding manual metal arc welding gas-shielded arc welding and beam weldingGB/T 3375Welding terminologyGB/T 4842ArgonGB/T 5310Seam/ess steel tubes and pipes for high pressure boiler GB/T 25778Procurement guidelines for welding consumablesNB/T 20002.3 Welding code for mechanical ponents of PWR nuclear islands-Part 3:Welding procedure qualificationJB/T 3223 Welding consumables quality management proceduresT/CWAN 0009Welding terminology-fusion welding T/CWAN 0o02Health standard for weld fume in the air of weldling shopTSG Z6002Examination rules for weldling operators of special equipmentASME BPVC Ill 1 NCRules for Construction of Nuclear Power Plant Components Division 1 Subsection NC: Class 2 Components ASME BPVC II C Specification for Welding Rods Electrodes and Filler MetalsASTM A-335/A-335MStandard Specification for Seamless Ferritic Alloy-Steel Pipe forHigh-Temperature Service
3Terms and Definitions
Terms defined in GB/T 3375 and T/CWAN 0009 apply to this document.
4General Requirements
4.1Personnel
4.1.1 Welders shall receive systematic theoretical training and hold valid weldingqualfication certificates.
4.1.2 Heat-treatment personnel shall pass the training and assessment organized bythe construction unit.
