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1、 Reference number ISO 15614-7:2007(E) ISO 2007 INTERNATIONAL STANDARD ISO 15614-7 First edition 2007-06-15 Specification and qualification of welding procedures for metallic materials Welding procedure test Part 7: Overlay welding Descriptif et qualification dun mode opratoire de soudage pour les ma
2、triaux mtalliques preuve de qualification dun mode opratoire de soudage Partie 7: Rechargement par soudage ISO 15614-7:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless th
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6、ronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.o
7、rg Web www.iso.org Published in Switzerland ii ISO 2007 All rights reserved ISO 15614-7:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Preliminary welding procedure specification (pWPS) 2 4.1 Overla
8、y welding 2 4.2 Hardfacing . 2 4.3 Building-up 3 4.4 Buttering 3 5 Welding procedure test 3 6 Test piece 3 6.1 Shape and dimensions of test pieces. 3 6.2 Welding of test pieces 5 7 Examination and testing 6 7.1 Extent of testing 6 7.2 Non-destructive testing (NDT). 6 7.3 Location and taking of test
9、specimens 6 7.4 Destructive testing 8 7.5 Acceptance criteria. 10 7.6 Retesting 11 8 Range of qualification 11 8.1 General. 11 8.2 Qualification related to the manufacturer 11 8.3 Qualification related to the material 12 8.4 Qualification related to the filler material/overlay. 13 8.5 Common to weld
10、ing procedures. 14 8.6 Specific to welding processes 15 9 Welding procedure qualification record (WPQR) 17 Annex A (informative) Welding procedure qualification record form (WPQR) 18 Bibliography. 21 ISO 15614-7:2007(E) iv ISO 2007 All rights reserved Foreword ISO (the International Organization for
11、 Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the
12、right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Internatio
13、nal Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication a
14、s an International Standard requires 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 document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. I
15、SO 15614-7 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 121, Welding, in collaboration with Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding, in accordance with th
16、e Agreement on technical cooperation between ISO and CEN (Vienna Agreement). ISO 15614 consists of the following parts, under the general title Specification and qualification of welding procedures for metallic materials Welding procedure test: Part 1: Arc and gas welding of steels and arc welding o
17、f nickel and nickel alloys Part 2: Arc welding of aluminium and its alloys Part 3: Fusion and pressure welding of non-alloyed and low-alloyed cast irons Part 4: Finishing welding of aluminium castings Part 5: Arc welding of titanium, zirconium and their alloys Part 6: Arc and gas welding of copper a
18、nd its alloys Part 7: Overlay welding Part 8: Welding of tubes to tube-plate joints Part 10: Hyperbaric dry welding Part 11: Electron and laser beam welding Part 12: Spot, seam and projection welding Part 13: Resistance butt and flash welding Requests for official interpretations of any aspect of th
19、is part of ISO 15614 should be directed to the Secretariat of ISO/TC 44/SC 10 via your national standards body. A complete listing of these bodies can be found at www.iso.org. ISO 15614-7:2007(E) ISO 2007 All rights reserved v Introduction This part of ISO 15614 is part of a series of standards. Det
20、ails of this series are given in ISO 15607:2003, Annex A. Previous procedure qualifications to former national standards or specifications should be taken into consideration at the time of the enquiry or contract stage and agreed between the contracting parties. INTERNATIONAL STANDARD ISO 15614-7:20
21、07(E) ISO 2007 All rights reserved 1 Specification and qualification of welding procedures for metallic materials Welding procedure test Part 7: Overlay welding 1 Scope This part of ISO 15614 specifies how a preliminary welding procedure specification for overlay welding is qualified by welding proc
22、edure tests. This part of ISO 15614 defines the conditions for carrying out welding procedure tests and the range of qualification for welding procedures for all practical welding operations within the range of variables listed in Clause 8. Additional tests may be required by application standards.
23、This part of ISO 15614 applies to all welding processes suitable for overlay welding. This part of ISO 15614 is applicable to all new welding procedures. However, it does not invalidate previous welding procedure tests made to former national standards or specifications. Where additional tests are c
24、arried out to make the qualification technically equivalent, they are only done on a test piece made in accordance with this part of ISO 15614. This part of ISO 15614 does not apply to overlay welding where cracks are intentionally produced (e.g. special hardfacing applications). 2 Normative referen
25、ces The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references the latest edition of the referenced document (including any amendments) applies. ISO 3452, Non destructive testing Penetrant in
26、spection General principles ISO 5173, Destructive tests on welds in metallic materials Bend tests ISO 6947, Welds Working positions Definitions of angles of slope and rotation ISO 9015-1, Destructive tests on welds in metallic materials Hardness testing Part 1: Hardness test on arc welded joints ISO
27、 14174, Welding consumables Fluxes for submerged arc welding Classification ISO 14175, Welding consumables Shielding gases for arc welding and cutting ISO/TR 15608, Welding Guidelines for a metallic materials grouping system ISO 15614-7:2007(E) 2 ISO 2007 All rights reserved ISO 15609-1, Specificati
28、on and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding ISO 15609-2, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 2: Gas welding ISO 15609-3, Specification and qualifica
29、tion of welding procedures for metallic materials Welding procedure specification Part 3: Electron beam welding ISO 15609-4, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 4: Laser beam welding ISO 15613, Specification and qualificat
30、ion of welding procedures for metallic materials Qualification based on pre-production welding test ISO 15614-1, Specification and qualification of welding procedures for metallic materials Welding procedure test Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys ISO 1
31、7637, Non-destructive testing of welds Visual testing of fusion-welded joints ISO 17639, Destructive tests on welds in metallic materials Macroscopic and microscopic examination of welds ISO 17640, Non-destructive testing of welds Ultrasonic testing of welded joints ISO/TR 259011), Welding and relat
32、ed processes Vocabulary 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO/TR 25901 apply. 4 Preliminary welding procedure specification (pWPS) 4.1 Overlay welding The pWPS shall be in accordance with ISO 15609-1, ISO 15609-3 and ISO 15609-4. It shall s
33、pecify the tolerances for all the relevant parameters. The welding procedure shall be qualified in accordance with Clauses 5 to 8. 4.2 Hardfacing The pWPS shall be in accordance with ISO 15609-1, ISO 15609-2, ISO 15609-3 and ISO 15609-4. It shall specify the tolerances for all the relevant parameter
34、s. The welding procedure shall be qualified in accordance with Clauses 5 to 8. 1) To be published (revision of CEN/TR 14599). ISO 15614-7:2007(E) ISO 2007 All rights reserved 3 4.3 Building-up The pWPS shall be in accordance with ISO 15609-1. It shall specify the tolerances for all the relevant para
35、meters. The welding procedure shall be qualified in accordance with ISO 15613 or ISO 15614-1 and Clauses 5 to 8. 4.4 Buttering The pWPS shall be in accordance with ISO 15609-1. It shall specify the tolerances for all the relevant parameters. If buttering is used for welding between dissimilar materi
36、als, the welding procedure shall be qualified in accordance with ISO 15614-1. If buttering is used to produce a metallurgically compatible weld metal between the parent material and overlay welding or hardfacing, the welding procedure shall be qualified in accordance with ISO 15614-1 and Clauses 5 t
37、o 8. 5 Welding procedure test A test piece shall be welded using the same welding processes as the ones to be used in production (e.g. strip overlay welding + manual metal arc overlay welding with covered electrode). The welding and testing of test pieces shall be in accordance with Clauses 6 and 7.
38、 6 Test piece 6.1 Shape and dimensions of test pieces 6.1.1 General The welding procedure test shall be carried out on standardized test piece(s) in accordance with Figures 1 and 2, and 6.2. Parent material(s) shall be used which represent the material(s) to be welded in production. The dimensions a
39、nd/or number of test pieces shall be sufficient to allow all required tests to be carried out (see Figures 1 and 2). The thickness and/or diameter of the test pieces shall be selected in accordance with the range of qualification. 6.1.2 Overlay welding and hardfacing A minimum of three beads for the
40、 last layer is required. 6.1.3 Buffer layer If a buffer layer is used in production welding, it shall be used in welding the test piece. ISO 15614-7:2007(E) 4 ISO 2007 All rights reserved Dimensions in millimetres Key 1 buttering layer, if necessary 2 number of layers in accordance with the pWPS (se
41、e 6.1.2) or thickness of overlay deposit 3 welding direction t parent material thickness Figure 1 Test piece Plate ISO 15614-7:2007(E) ISO 2007 All rights reserved 5 Dimensions in millimetres a) Axial overlay welding External c) Circumferential overlay welding External b) Axial overlay welding Inter
42、nal d) Circumferential overlay welding Internal Key 1 buttering layer, if necessary 2 welding direction 3 number of layers in accordance with the pWPS (see 6.1.2 and 6.1.3) De outside diameter of tube Di inside diameter of tube t parent material thickness Figure 2 Test piece Tube 6.2 Welding of test
43、 pieces Preparation and welding of test pieces shall be carried out in accordance with the pWPS and under the general conditions in production that they shall represent. Welding and testing of the test pieces shall be witnessed by an examiner or an examining body. ISO 15614-7:2007(E) 6 ISO 2007 All
44、rights reserved 7 Examination and testing 7.1 Extent of testing Testing includes both non-destructive testing (NDT) and destructive testing which shall be in accordance with the requirements of Table 1. Table 1 Examination and testing of the test pieces Test piece Type of test Extent of testing Foot
45、note Overlay welding Visual testing Ultrasonic testing Surface crack detection Side bend test Macroscopic examination Microscopic examination Chemical analysis Delta ferrite content/ferrite number-FN Hardness testing 100 % 100 % 100 % 2 specimens 1 specimen 1 specimen 1 specimen 1 specimen 1 survey
46、a b c d a d Hardfacing Visual testing Surface crack detection Macroscopic examination Hardness testing Microscopic examination 100 % 100 % 1 specimen 1 survey 1 specimen b d a If required, in accordance with the application standard. b Penetrant testing or magnetic particle testing. For non-magnetic
47、 materials, penetrant testing. c Side bend test may be replaced by ultrasonic testing (UT) plus two additional macroscopic examinations. d Not required for material of group 1. 7.2 Non-destructive testing (NDT) All NDT in accordance with 7.1 and Table 1 shall be carried out on the test pieces prior
48、to cutting of the test specimens. Any post-weld heat treatment that is specified shall be completed prior to NDT. Depending on overlay geometry, materials and the production specification, NDT shall be carried out in accordance with ISO 17637 (visual examination), ISO 3452 (penetrant testing) and IS
49、O 17640 ultrasonic testing (UT). The acceptance criteria stated in 7.5.1 shall apply. 7.3 Location and taking of test specimens Test specimens shall be taken in accordance with Figures 3 and 4. Tests specimens shall be taken after all NDT has been carried out and they have passed the relevant inspection criteria for the NDT method(s) used. ISO 15614-7:2007(E) ISO 2007 All rights reserved 7 It is acceptable to take the test specimens fr