1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsWB9423_BSI_StandardColCov_noK_AW:BSI FRONT COVERS 5/9/08 12:55 Page 1Specification for welding ofsteel pipelines on land and offshorePart 1: Carbon and carbon manganese steel pipelin
2、esBS 4515-1:2009 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LALicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSIPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document
3、 was last issued BSI 2008ISBN 978 0 580 56892 3ICS 23.040.10The following BSI references relate to the work on this standard:Committee reference WEE/21/7Draft for comment 08/30149349 DCPublication historyFirst published as BS 4515 October 1969Second edition March 1984Third edition September 1995Four
4、th edition February 1996First published as BS 4515-1 July 2000Second edition November 2004Third edition December 2008Amendments issued since publicationDate Text affectedBRITISH STANDARDBS 4515-1:2009Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSIC
5、ontentsForeword iii1 Scope 12 Normative references 13 Terms and definitions, and abbreviations 24 Information and requirements to be approved anddocumented 45 Equipment 86 Welding process 87 Welding consumables 88 Testing, qualification and approval of welding procedures 99 Testing, qualification an
6、d approval of welders 2910 Production welding 3311 Inspection and testing of welds 3912 Acceptance and rectification of welds 41AnnexesAnnex A (informative) Recommendations for hyperbaric arcwelding 46Annex B (informative) Recommendations for brazing andaluminothermic welding of anode bonding leads
7、51Annex C (informative) Provisional welding procedurespecification 53Annex D (informative) Example of a record form for an MMAwelder qualification test 56Annex E (informative) Guidance for establishing preheatingrequirements 57Annex F (informative) Example of a radiographic specification 59Annex G (
8、informative) Recommendations for the welding ofcorrosion resistant alloy clad and lined pipelines 60Bibliography 70List of figuresFigure 1 Location of test specimens 15Figure 2 Locations for hardness indentations 18Figure 3 Position of Charpy V-notch test specimens 19Figure 4 Location of repair exca
9、vations and destructive testspecimens 21Figure 5 Recommended locations for hardness indentations forrepair test welds 23Figure 6 Positioning of Charpy V-notch impact specimens forprocedure approval of partial penetration repair welds 26Figure 7 Preparation of fillet weld specimens 27Figure 8 Recomme
10、nded locations for hardness indentations on afillet weld 29Figure B.1 Recommended locations for hardness traverses andindentations for brazing and aluminothermic welding 52Figure C.1 Example of provisional welding procedurespecification 53Figure C.2 Example of welding procedure specification forprod
11、uction welding 54Figure C.3 As-run record of welding procedure qualification test 55Figure D.1 Example of record form for an MMA welderqualification test 56Figure E.1 Nomogram for preheating requirements 58Figure F.1 Example of a radiographic procedure specification 59BS 4515-1:2009BRITISH STANDARDB
12、SI 2008.iLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSIList of tablesTable 1 Welding procedure specification details and changesaffecting approval 12Table 2 Qualified ranges of chemical analysis 14Table 3 Number of specimens for tensile tests, mac
13、ro-examinationand hardness survey and number of sets of specimens for Charpy tests,for procedure approval of butt joints 17Table 4 Permitted maximum hardness values HV10 19Table 5 Number of test specimens to undergo destructive testing forweld repair procedure qualification 23Table 6 Number of test
14、specimens for procedure approval tests onfillet welds 27Table 7 Hardness values for fillet welds on the external surfaceof the pipe 28Table 8 Diameter and thickness ranges for butt joints and branchconnections 32Table 9 Acceptance criteria for welds 42Table G.1 Welding procedure specification detail
15、s and changesaffecting approval 61Summary of pagesThis document comprises a front cover, an inside front cover, pages ito iv, pages 1 to 72, an inside back cover and a back cover.BS 4515-1:2009 BRITISH STANDARDii.BSI 2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncont
16、rolled Copy, (c) BSIForewordPublishing informationThis part of BS 4515 is published by BSI and came into effect on1 January 2009. It was prepared by Subcommittee WEE/21/7, Fieldwelding of pipelines, under the authority of Technical CommitteeWEE/21, Pipework welding. A list of organizations represent
17、ed on thiscommittee can be obtained on request to its secretary.SupersessionThis part of BS 4515 supersedes BS 4515-1:2004, which is withdrawn.Information about this documentThis is a full revision of the standard, and introduces the followingprincipal changes:*removal of references to BS EN 288-9 w
18、hich has been withdrawn.Where appropriate, requirements from BS EN 288-9 have beenincorporated in the standard;*revision of Clause 8 on testing, qualification and approval ofwelding procedures;*revision of Annex A on hyperbaric welding.If welding in accordance with this British Standard is agreed wi
19、th aStatutory Authority as a basis for obtaining approval to operate apipeline, the employer will need to obtain the Authoritys agreementto any waivers of requirements. Where this standard provides for theemployer to define requirements, the Authoritys agreement might benecessary. Topics commonly in
20、volved include selecting the definitionof the pipelines starting and termination points, electing to usehardness limits higher than those in Table 4 or Table 7, selecting themethods and frequency of non-destructive testing, electing to useEngineering Critical Assessment to derive acceptance criteria
21、,permitting multiple attempts at repair, or permitting single run orroot repairs. The employer should ensure that all relevant points havebeen agreed with the Statutory Authority before welding begins.In reflecting current industry practice, this British Standard placesduties on, and allocates power
22、s of approval to, the employer.Consequently, the term qualification has been retained to describethe series of actions which demonstrate that the technicalrequirements of this British Standard have been met during theprocess of welding procedure, and welder approval.Assessed capability. Users of thi
23、s British Standard are advised toconsider the desirability of quality system assessment and registrationagainst the appropriate standard in the BS EN ISO 9000 series by anaccredited third-party certification body.Use of this documentIt has been assumed in the preparation of this British Standard tha
24、tthe execution of its provisions will be entrusted to appropriatelyqualified and experienced people, for whose use it has beenproduced.It is also assumed that the Contractor will nominate a WeldingCo-ordinator in accordance with BS EN ISO 14731.BS 4515-1:2009BRITISH STANDARDBSI 2008.iiiLicensed Copy
25、: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSIPresentational conventionsThe provisions of this standard are presented in roman (i.e. upright)type. Its requirements are expressed in sentences in which the principalauxiliary verb is shall.Commentary, explanation
26、 and general informative material ispresented in smaller italic type, and does not constitute a normativeelement.Requirements in this standard are drafted in accordance with The BSIguide to standardization Section 2: Rules for the structure, draftingand presentation of British Standards, subclause 1
27、1.3.1, which states,Requirements should be expressed using wording such as:When tested as described in Annex A, the product shall . Thismeans that only those products that are capable of passing thespecified test will be deemed to conform to this standard.Contractual and legal considerationsThis pub
28、lication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication.Compliance with a British Standard cannot confer immunity fromlegal obligations.BS 4515-1:2009 BRITISH STANDARDiv.BSI 2008Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STAND
29、ARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSI1 ScopeThis British Standard specifies requirements for the welding of carbon,carbon manganese and low alloy steel pipelines with specifiedminimum yield strengths not exceeding 555 N/mm2(grade L555 asspecified in ISO 3183:2007 and BS EN 10208-2:1997)
30、 and designed inaccordance with PD 8010-1 and PD 8010-2.The standard applies to pipes of outside diameter 21.0 mm and largerhaving a thickness of 3.0 mm or greater and is applicable totransmission pipelines for gases, liquids or slurries, both on land andoffshore.In addition to the definitive requir
31、ements, this standard also requiresthe items detailed in Clause 4 to be documented. For compliance withthis standard, both the definitive requirements and the documenteditems have to be satisfied.Information on hyperbaric welding is given in Annex A andinformation on brazing and aluminothermic weldi
32、ng of anodebonding leads is given in Annex B.Additional recommendations for the welding of corrosion resistantalloy clad and lined pipelines are given in Annex G.2 Normative referencesThe following referenced documents are indispensable for theapplication of this document. For dated references, only
33、 the editioncited applies. For undated references, the latest edition of thereferenced document (including any amendments) applies.BS 499-1:1991+A1:1996, Welding terms and symbols Part 1: Glossaryfor welding, brazing and thermal cuttingBS 7910:2005+A1:2007, Guide to methods for assessing theacceptab
34、ility of flaws in metallic structuresBS EN 875, Destructive tests on welds in metallic materials Impacttests Test specimen location, notch orientation and examinationBS EN 895, Destructive tests on welds in metallic materials Transversetensile testBS EN 970, Non-destructive examination of fusion wel
35、ds VisualexaminationBS EN 1321, Destructive test on welds in metallic material Macroscopic and microscopic examination of weldsBS EN 1435:1997+A2:2004, Non-destructive examination of welds Radiographic examination of welded jointsBS EN 1714:1998+A2:2004, Non-destructive examination of weldedjoints U
36、ltrasonic examination of welded jointsBS EN 10045-1, Charpy impact test on metallic materials Part 1: Testmethod (V- and U-notches)BS EN 10160, Ultrasonic testing of steel flat product of thickness equalor greater than 6 mm (reflection method)BS EN 10208-2:1997, Steel pipes for pipelines for combust
37、ible fluids Technical delivery conditions Part 2: Pipes of requirement class BBS EN 13622:2002, Gas welding equipment Terminology Terms usedfor gas welding equipmentBS 4515-1:2009BRITISH STANDARDBSI 2008.1Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c)
38、 BSIBS EN ISO 6507 (all parts), Metallic materials Vickers hardness testBS EN ISO 9934 (all parts), Non-destructive testing Magnetic particletestingBS EN ISO 14175, Welding consumables Gases and gas mixtures forfusion welding and allied processesBS EN ISO 14731, Welding co-ordination Tasks and respo
39、nsibilitiesISO 3183:2007, Petroleum and natural gas industries Steel pipe forpipeline transportation systemsPD 8010-1, Code of practice for pipelines Part 1: Steel pipelines onlandPD 8010-2, Code of practice for pipelines Part 2: Subsea pipelines3 Terms and definitions, and abbreviations3.1 Terms an
40、d definitionsFor the purposes of this British Standard, the terms and definitionsgiven in BS 499-1:1991+A1, BS EN 13622:2002 and the followingapply.3.1.1 approvalformal agreement by the employer that a qualification (or otherproposal by the contractor) in accordance with this British Standard isacce
41、ptable for the proposed application3.1.2 buffer layerweld pass or passes, typically pure iron or pure nickel, separating theCRA and carbon steel parts of a weld3.1.3 cap repairsingle run repair to the external surface of the original weld3.1.4 claddingmethod whereby a CRA layer is metallurgically bo
42、nded to the pipe orfitting3.1.5 contractorfirm undertaking the contract and any subcontractors engaged inwork covered by this standard3.1.6 employerowner company or the engineering agency in charge of constructionNOTE The employer may act through a consultant, an inspector or otherauthorized represe
43、ntative.3.1.7 full penetration repairrepair from the external surface of the original weld which penetratesto the bore of the pipe3.1.8 internal backweld repairrepair from the internal surface of the original weldNOTE Sometimes referred to as backweld repair.BS 4515-1:2009 BRITISH STANDARD2.BSI 2008
44、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/03/2009 06:22, Uncontrolled Copy, (c) BSI3.1.9 jointcompleted weld joining two sections of pipe, a section of pipe to afitting, or two fittings3.1.10 liningmethod whereby a CRA shell is mechanically fixed within a pipe orfitting3.1.11 mechani
45、zed weldingwelding process in which the welding parameters and torch guidanceare controlled mechanically or electronically but may be manuallyvaried during welding to maintain the required welding conditions3.1.12 partial penetration repairmulti-run repair from the external surface of the original w
46、eld whichdoes not penetrate to the bore of the pipe3.1.13 pipelinecontinuous line of pipes of any length without frequent branches,used for transporting fluidsNOTE It does not include piping systems such as process plant pipingwithin offshore installations. PD 8010-1 and PD 8010-2.3.1.14 positional
47、weldingwelding wherein the pipe or assembly is held stationary3.1.15 provisional welding procedure specificationpWPSprovisional tentative welding procedure specification, prepared by thecontractor for acceptance and approval by the employer but which issubject to qualificationNOTE Welding of test pi
48、eces needed for approval of a weldingprocedure specification has to be carried out on the basis of a provisionalwelding procedure specification (pWPS).3.1.16 qualificationseries of actions necessary to demonstrate that a proposal meets thetechnical requirements of this British Standard3.1.17 re-repa
49、irsecond attempt at repairing a defect in the same locationNOTE For qualification purposes this is a repair of a repair, simulated bythe sequence: original weld, excavate, repair, re-excavate and re-repair.3.1.18 roll weldingmethod of manipulation by rotating or rolling pipes or pipeassemblies so that all welding is carried out in or near the flat positionBS 499-1:1991+A13.1.19 root runfirst run deposited in the root of a multi-run weld BS 499-1:1991+A13.1.20 seal we
