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1、国内外标准大全豆丁网国内外标准下载地址 BRITISH STANDARDSpecification andapproval of welding procedures for metallic materials Part 9: Welding procedure test for pipeline welding on land and offshore site butt welding of transmission pipelinesThe European Standard EN 288-9:1999 has the status of aBritish StandardICS 25
2、.160.10| BS EN288-9:1999|NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 288-9:1999National forewordThis British Standard is the English language version of EN 288-9:1999.The UK participation in its preparation was entrusted by Technical Committee WEE/21, Pipework welding
3、, to Subcommittee WEE/21/7, Field welding, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European
4、 developments and promulgate them in the UK.A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Standards
5、 Catalogue under the section entitled International Standards Correspondence Index, or by using theFind facility of the BSI Standards Electronic Catalogue.A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their c
6、orrect application.Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 19 and a back cover.The BSI copyright notice displayed throughout this document
7、indicates when the document was last issued.Amd. No.DateCommentsThis British Standard, having been prepared under the direction of the EngineeringSector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 1999BSI 08-1999ISBN 0 580 32580 6Amendme
8、nts issued since publicationEUROPEAN STANDARDEN 288-9NORME EUROPE ENNEEUROPA ISCHE NORMMarch 1999ICS 25.160.10English versionSpecification and approval of welding procedures for metallic materials Part 9: Welding procedure test for pipeline welding on land and offshore site butt welding of transmiss
9、ion pipelinesDescriptif et qualification dun mode ope ratoire de soudage pour les mate riaux me talliques Partie 9: Epreuve de qualification dun modeope ratoire de soudage pour le soudage bout a bout de canalisations de transport sur site, sur terre eten merAnforderung und Anerkennung von Schweiverf
10、ahren fu r metallische Werkstoffe Teil 9: Schweiverfahrenspru fung fu r baustellengeschweite Stumpfna hte von Versorgungsrohrleitungen an Land und OffshoreThis European Standard was approved by CEN on 3 March 1999.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
11、ate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exis
12、ts in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.CEN members are the national standards bodi
13、es of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.CENEuropean Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r
14、NormungCentral Secretariat: rue de Stassart 36, B-1050 Brussels1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nationalMembers.Ref. No. EN 288-9:1999 EPage 9EN 288-9:1999BSI 08-1999ForewordThis European Standard has been prepared byTechnical Committee CEN/
15、TC 121, Welding, theContentsPageSecretariat of which is held by DS.This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest bySeptember 1999, and conflicting national standards shall be withdrawn at the lates
16、t by September 1999.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Neth
17、erlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Foreword 2Introduction 31Scope 32Normative references 33Definitions 43.1repair 43.2full penetration repair 43.3internal repair 43.4make 44Preliminary welding procedurespecification (pWPS) 45Welding procedure test 46Test pie
18、ce 46.1General 46.2Shape and dimensions of test pieces 46.3Welding of test pieces 47Examination and testing 47.1Extent of testing 47.2Location and cutting of test specimens 47.3Non-destructive examination 67.4Destructive tests 67.5Re-testing 118Range of approval 128.1General 128.2Related to the manu
19、facturer 128.3Related to the material 128.4Common to all welding procedures 138.5Specific to processes 148.6Period of validity 149Wedling procedure approval record(WPAR) 14Annex A (normative) Repairs 15Annex B (informative) A-deviations 16Annex C (informative) Welding procedureapproval record form 1
20、7IntroductionAll new welding procedure approvals are in accordance with this standard from the date of its issue.However, this standard does not invalidate previous welding procedure approvals made to former national standards or specification, providing the intent of the technical requirements is s
21、atisfied and the previous procedure approvals are relevant to the application and production work on which they are employed.Also, where additional tests are carried out to make the welding procedure approval technically equivalent, the additional tests are made on a test piece which should be made
22、in accordance with this standard. Consideration of previous procedure approvals toformer national standards or specifications should be made at the time of the enquiry or contract stage and agreed between the contracting parties.1 ScopeThis standard specifies how a welding procedure specification is
23、 approved by welding procedure tests for on land and offshore site butt welding of transmission pipelines under normal atmospheric conditions.Tests are carried out in accordance with this standard unless additional tests (e.g. CTOD tests and all weld metal tensile tests) are specified by the relevan
24、t application standard or contract when these apply. This standard defines the conditions for the executionof welding procedure approval tests and the limits of validity of an approved welding procedure for all practical welding operations within the range of variables listed in clause 8.It applies
25、to the arc welding of steels of groups 1, 2 and 3 according to CR 12187. The principles of this standard can be applied to other fusion welding processes subject to agreement between the contracting parties.The requirements for welding procedure specification and qualification for hyperbaric and wet
26、 welding are not covered by this supplementary standard.Arc welding is covered by the following processes in accordance with EN 24063:111metal-arc welding with covered electrode;114flux-cored wire metal-arc welding without gas shield;121submerged arc welding with wire electrode;131metal-arc inert ga
27、s welding, MIG-welding;135metal-arc active gas welding, MAG-welding;136flux-cored wire metal-arc welding with active gas shield;141tungsten inert gas arc welding, TIG-welding.Other fusion welding processes by agreement e.g. metal cored wire arc welding.2 Normative referencesThis European Standard in
28、corporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this E
29、uropean Standard onlywhen incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.EN 288-1, Specification and approval of welding procedures for metallic materials Part 1: General rules for fusion welding.EN 288-2, Specification a
30、nd approval of welding procedures for metallic materials Part 2: Welding procedure specification for arc welding.EN 439, Welding consumables Shielding gases for arc welding and cutting.EN 760, Welding consumables Fluxes for submerged arc welding Classification.EN 875, Destructive tests on welds in m
31、etallic materials Impact tests Test specimen location, notch orientation and examination.EN 895, Destructive tests on welds in metallic material Tranverse tensile test.EN 970, Non-destructive examination of welds Visual examination.EN 1043-1, Destructive test on weld in metallic materials Hardness t
32、esting Part 1: Hardness test on arc welded joints.EN 1290, Non-destructive examination of welds Magnetic particle examination of welds.EN 1321, Destructive test on welds in metallic materials Macroscopic and microscopic examination of welds.EN 1435, Non-destructive examination of welds Radiographic
33、examination of welded joints.EN 1714, Non-destructive examination of welds Ultrasonic examination of welded joints.EN ISO 6947, Welds Working positions Definitions of angles of slope and rotation. (ISO 6947:1993)EN 10045-1, Metallic materials Charpy impact test Part 1: Test method.EN 24063, Welding,
34、 brazing, soldering and braze welding of metals Nomenclature of processesand reference numbers for symbolic representation on drawings.(ISO 4063:1990)EN ISO 6520-1:1998, Welding and applied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding.(ISO 6520-1:1
35、998)CR 12187, Welding Guidelines for a grouping system of materials for welding purposes.3 DefinitionsFor the purposes of this standard, the definitions listed below and in EN 288-1 apply.3.1 repairany operation which involves welding to rectify the weld, outside the normal welding cycle3.2full pene
36、tration repairwelded repair through the whole thickness of the qualification joint3.3internal repairwelded repair carried out from the inside surface or the root side of a weld, after excavation and repreparation, using either a single or a multi-pass weld deposition sequence3.4 makespecific trade o
37、r brand name of the consumable, but not its designation4 Preliminary welding procedure specification (pWPS)The preliminary welding procedure specification shall be prepared in accordance with EN 288-2. It shall specify the range for all relevant parameters including the following additional items: s
38、teel grade and supply conditions(N, TM, QT steels); number and location of welders; time lapse between start of root pass and start of hot pass; partially completed joint: number of runs before the joint is permitted to cool to ambient temperature; type of line up clamp; time of clamp removal; numbe
39、r of runs completed before lowering off or barge move up; preheating method; method to control cooling.5 Welding procedure testThe making and testing of test pieces representing the type of welding used in production shall be carried out in accordance with clauses 6 and 7 of this standard.When a wel
40、ding procedure is to be qualified and approved for pipe-reeling, the proposed welding procedures shall include relevant previously documented strain ageing data and/or any additional tests specified.NOTE These tests can include representative strain cycles and accelerated ageing typically for 1 h at
41、 1008 C.Where data regarding pipe material performance/weldability exist, these data shall be considered when selecting suitable welding parameters and conditions for incorporating into the pWPS. Where such data do not exist it can be necessary to carry out preliminary welding trials to establish th
42、ese data.The welder who undertakes the welding procedure test satisfactorily in accordance with this standard can be approved, by agreement between the contracting parties, for welding on site within the ranges coveredby the approved welding procedure specification.6 Test piece6.1 GeneralThe welded
43、assembly to which the welding procedure will relate in production shall be represented bymaking a standardized test piece or pieces, as specified in 6.2.6.2 Shape and dimensions of test piecesTest welds shall be made between whole pipe lengths (if agreed between the contracting parties the length co
44、uld be reduced to a minimum of one diameter) under simulated site conditions (this may include the application of installation strains). Welding shall follow the pWPS, with removal of line-up clamps, loweringoff, partial completion and recommencement where applicable.6.3 Welding of test piecesPreparation and welding of test pieces shall be carried out in accordance with the pWPS, and under the general conditions of production
