1、Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHSg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g
2、48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58-,-,-production welding of steel castingsThe European Standard EN ISO 11970:2007 has the status of a British StandardICS 25.160.10; 77.140.80Specification and approval of welding procedures for BRITISH STANDARDBS EN ISO 11970:2007BS EN
3、 ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHSThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007
4、 BSI 2007ISBN 978 0 580 53811 7-,-,-Amendments issued since publicationAmd. No. Date CommentsCompliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN ISO 11970:2007.The UK participation in its preparation w
5、as entrusted to Technical Committee ISE/6, Steel castings.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.EUROP
6、EAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 11970July 2007ICS 25.160.10; 77.140.80English VersionSpecification and approval of welding procedures for productionwelding of steel castings (ISO 11970:2001)Descriptif et qualification dun mode opratoire de soudagepour le soudage de production sur ac
7、iers mouls (ISO11970:2001)Anforderungen und Anerkennung von Schweiverfahren frdas Produktionsschweien von Stahlguss (ISO11970:2001)This European Standard was approved by CEN on 24 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for g
8、iving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official ver
9、sions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium,
10、Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDAR
11、DIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 11970:2007: ECopyright European Committee for Standar
12、dization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Foreword The text of ISO 11970:2001 has been prepared by Technical Committee ISO/TC 17 “Steel” of the International Organization for Standardization (ISO) and has been ta
13、ken over as EN ISO 11970:2007 by Technical Committee ECISS/TC 31 “Steel castings“, the secretariat of which is held by AFNOR. 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 by January 2008, and conf
14、licting national standards shall be withdrawn at the latest by January 2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark,
15、Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 11970:2001 has been approved by CEN
16、 as EN ISO 11970:2007 without any modifications. EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Reference numberISO 11970:2001(E)INTERNATIONALSTANDARDISO11970Fi
17、rst edition2001-01-15Specification and approval of weldingprocedures for production welding of steelcastingsDescriptif et qualification dun mode opratoire de soudage pour lesoudage de production sur aciers moulsEN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under l
18、icense with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiiContents PageForeword.ivInt
19、roduction.v1 Scope 12 Normative references 13 Terms and definitions .24 Preliminary welding procedure specification (pWPS) .25 Welding procedure test.36 Test piece .37 Examination and testing .58 Range of approval89 Welding procedure approval record (WPAR) .12Annex A (informative) Welding procedure
20、approval Record form (WPAR) welding procedureapproval Test certificate.13Annex B (normative) Details of weld test .14EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-
21、,-,-ivForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISOmember bodies). The work of preparing International Standards is normally carried out through ISO technicalcommittees. Each member body interested in a subject for which
22、a technical committee has been established hasthe right to be represented on that committee. International organizations, governmental and non-governmental, inliaison with ISO, also take part in the work. ISO collaborates closely with the International ElectrotechnicalCommission (IEC) on all matters
23、 of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.Publication as an International Standard requ
24、ires approval by at least 75 % of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this International Standard may be the subject ofpatent rights. ISO shall not be held responsible for identifying any or all such patent rights.International Standard
25、 ISO 11970 was prepared by Technical Committee ISO/TC 17, Steel, Subcommittee SC 11,Steel castings.Annex B forms a normative part of this International Standard. Annex A is for information only.EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNo
26、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-vIntroductionAll welding procedure approvals for production welding of steel castings shall be in accordance with thisInternational Standard from the date of its issue.Previous procedure approvals that conform to the ra
27、nge of approval of clause 8 are valid under this InternationalStandard.Where additional tests have to be carried out to complete the approval it is only necessary to perform the additionaltests to the requirements of clauses 6 and 7.EN ISO 11970:2007Copyright European Committee for Standardization P
28、rovided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-blankCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1Spec
29、ification and approval of welding procedures for productionwelding of steel castings1 ScopeThis International Standard specifies how a welding procedure specification (WPS) for production welding of steelcastings is approved,It defines the conditions for the execution of welding procedure approval t
30、ests and the limits of validity of anapproved welding procedure for all practical welding operations within the range of essential variables.Tests shall be carried out in accordance with this International Standard unless additional tests are specified by thepurchaser or by agreement between the con
31、tracting parties.This International Standard applies to the arc welding of steel castings. The principles of this International Standardmay be applied to other fusion welding processes subject to agreement between the contracting parties.In the case of specific service, material or manufacturing con
32、ditions, more comprehensive tests may be specifiedby the purchaser, than are specified by this International Standard, in order to gain more information, e.g.longitudinal weld tensile tests, bend tests, chemical analyses, ferrite determination in austenitic stainless steels,elongation, Charpy “V” im
33、pact tests, radiography, etc.2 Normative referencesThe following normative documents contain provisions which, through reference in this text, constitute provisions ofthis International Standard. For dated references, subsequent amendments to, or revisions of, any of thesepublications do not apply.
34、However, parties to agreements based on this International Standard are encouraged toinvestigate the possibility of applying the most recent editions of the normative documents indicated below. Forundated references, the latest edition of the normative document referred to applies. Members of ISO an
35、d IECmaintain registers of currently valid International Standards.ISO 148:1983, Steel Charpy impact test (V-notch).ISO 857-1:1998, Welding and allied processes Vocabulary Part 1: Metal welding processes.ISO 4969:1980, Steel Macroscopic examination by etching with strong mineral acids.ISO 4986:1992,
36、 Steel castings Magnetic particle inspection.ISO 4987:1992. Steel castings Penetrant inspection.ISO 4992:1), Steel castings Ultrasonic inspection.ISO 4993:1987, Steel castings Radiographic inspection.1) To be published.EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS
37、 under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2ISO 5817:2), Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam weldingexcluded) Quality levels for imperfections.ISO 6507-1:1997, Metallic materials Vickers hardnes
38、s test Part 1: Test method.ISO 6892:1998, Metallic Materials Tensile testing at ambient temperature.ISO 6947:1990, Welds Working positions Definition of angles of slope and rotation.ISO 9606-1:1994, Approval testing of welders Fusion welding Part 1: Steels.ISO 9692-1:3), Welding and allied processes
39、 Recommendations for joint preparation Part 1: Manual metal-arc welding, gas-shielded metal-arc welding and gas welding of steels.ISO 9956-1:1995, Specification and approval of welding procedures for metallic materials Part 1: General rulesfor fusion welding.ISO 9956-2:1995, Specification and approv
40、al of welding procedures for metallic materials Part 2: Weldingprocedure specification for arc welding.3 Terms and definitionsFor the purposes of this International Standard, the terms and definitions given in ISO 857-1 and ISO 9956-1 aswell as the following apply.3.1production weldingany welding ca
41、rried out during manufacturing before final delivery to the purchaser including joint welding ofcastings and finishing welding3.1.1joint weldingwelding used to weld cast components together or weld cast components to wrought steels in order to obtain anintegral unit3.1.2finishing weldingwelding carr
42、ied out in order to ensure the agreed quality of the casting3.2repair weldingany welding carried out after delivery to the end user, i.e. after the casting has been in service4 Preliminary welding procedure specification (pWPS)A preliminary welding procedure specification shall be prepared. It shall
43、 specify the range of all the relevantparameters according to ISO 9956-2.2) To be published. (Revision of ISO 5817:1992)3) To be published. (Partial revision of ISO 9692:1992)EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo repr
44、oduction or networking permitted without license from IHS-,-,-35 Welding procedure testThe making and testing of test pieces representing the type and the position of welding used in production shall bein accordance with clauses 6 and 7.The welder who undertakes the welding procedure test satisfacto
45、rily in accordance with this International Standardis approved for the appropriate range of approval according to ISO 9606-1. Additional welders shall be qualified inaccordance with 7.6.6 Test piece6.1 GeneralThe test piece shall be in accordance with that shown in Figure 1.6.2 Shape and dimensions
46、of test pieceAdditional test pieces, or longer test pieces than the minimum size may be prepared in order to allow for extraand/or retesting specimens (in accordance with 7.5).6.3 Welding of test pieceThe preparation and welding of the test piece shall be carried out in accordance with the relevant
47、pWPS. Angulartolerances may be agreed between the contracting parties or by the relevant application standard.The dimensions and shape of the groove shall be in accordance with ISO 9692-1.If tack welds are to be fused into the final joint they shall be included in the test piece.Unless otherwise spe
48、cified in the purchase order or contract review, welding and testing of the test piece(s) shallbe witnessed by an examiner (or test body). When the examiner (or test body) is not specified in the purchaseorder the manufacturer may appoint a suitable examiner.EN ISO 11970:2007Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4Dimensions
