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Laser Arc Hybrid Welding of steels, nickel and nickel alloys

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575 views32 pages

14

Laser Arc Hybrid Welding of steels, nickel and nickel alloys

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welding geek
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© © All Rights Reserved
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INTERNATIONAL ISO STANDARD 15614-14 Bitstedition 2013-06-15 Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys Descriptif et qualification d’un mode opératoire de soudage pour Jes matériaux métalliques — Epreuve de qualification d'un made opératoire de soudage — Partie 14: Soudage bybride laser-arec des aciers, du nickel et des alliages de nickel Reference number 180 15614-14:2013(8) © 180 2013 ISO 15614-14:2013(E) A COPYRIGHT PROTECTED DOCUMENT © 1802013 All rights reserved. Unless otherwise specified, no part ofthis publication may be reproduced or utilized otherwise in any form fr by any means, electronic or mechanical, including photocopying, ot posting on the internet or an intranet, without prior ‘writen permission. Permission can be requested from either ISD atthe address below ot ISO's member body inthe country of the requester. 150 copyright ofice Case postale 56 CH-1211 Geneva 20 Tel. +41 22.749 01 11 Fax 6 4122 749 09 47 Enmalleopyright@iso.org Web wanwisoorg Published in Switzerland: © 1802013 - All rights reserved Contents fag a _— iv Introduction, v 1 Scope... 1 2 Normative references. 1 3 Terms and definitions 2 4 Preliminary welding procedure specification, 2 5 Welding procedure test 3 6 Test piece. 3 61 General 3 6.2 Shape and dimensions of test pieces 3 6.3 Welding of test pieces 4 7 Examination and testing. 8 7.1 Extent of examination and testing 8 7.2. Location and taking of test specimens. 9 7.3 Non-destructive testing. zs 14 74 — Destructive testing 14 75 Quality levels. 16, 7.6 — Re-testing, 17 8 Range of qualification 17 8.1” General V7 8.2 Related to the manufacturer 47 8.3 Related to the parent material. 17 84 Related to welding process 21 85 Related to welding position 21 8.6 Related to type of joint or weld 24 8,7 Related to number of layers. 21 8.8 Related to filler material 21 8.9 Related to type of current 21 8,10 _ Related to preheating and interpass temperature 24 8.11 _ Related to post-weld heat treatment. 21 8.12 Nominal heat input. 22 8.13 Duration of validity 22 9 Welding procedure qualification record (WPQR) 22 Annex A (informative) Welding procedure qualification record template (WPQR) 23 Bibliography. 24 organ onli? Sieh ights reserved ili ISO 15614-14:2013(E) Foreword 150 (the International Organization for Standardization) isa worldwide federation of national standards bodies (150 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 right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work, 150 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization International Standards are drafted in accardance 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 as an International Standard requires approval by at least 75 % of the member bodies castinga 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 orall such patent rights. ISO 15614-14 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 10, Unification of requirements in the field of metal welding. ISO 15614 consists of the following parts, under the general ttle 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 — Part 2: Are welding of aluminium and its alloys — Part 3: Fusion 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: Are and gas welding of capper and 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: Upset (resistance butt) and flash welding — Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys Requests for official interpretations of any aspect of this part of [SO 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 wwwiso.org eran yee pene y suse © 180 2013 - All rights reserved ISO 15614-14:2013(E) Introduction It is intended that all new welding procedure tests be carried out in accordance with this part of 1S0 15614 from the date of its issue. However, this part of ISO 15614 does not invalidate previous welding procedure tests made to former national standards or specifications. Also, where additional tests shall be carried out to make the qualification technically equivalent, itis only necessary to do the additional tests on a test piece made in accordance with this part of ISO 15614. organ onli? Sieh ights reserved e INTERNATIONAL STANDARD Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 14: Laser-arc hybrid welding of steels, nickel and nickel alloys 1 Scope ‘This part of ISO 15614 specifies how a preliminary welding procedure specification is qualified by welding procedure tests. ‘This part of ISO 15614 defines the conditions for the execution of 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. NOTE1 [tis possible that additional tests are required by applications standards. NOTE2 The various parts of IS0 15614 comprise, in th details of which are given in ISO 15607:2003, Annex A. ‘urn,a series of International Standards on welding, 2 Normative references ‘The following referenced documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 testing — Part 1: General principles 1804136, Destructive tests on welds in metallic materials — Transverse tensile test 180 5173, Destructive rests on welds in metallic materials — Bend tests 180 6947, Welding and allied processes — Welding positions 1S0 9016, Destructive tests on welds in metallic materials — Impact vests — Test specimen location, notch orientation and examination 10 12932, Welding — Laser-are hybrid welding of steels, nickel and nickel alloys — Quality levels for imperfections 180 14732, Welding personnel — Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials 1S0 15607:2003, Specification and qualification of welding procedures for metallic materials — General rules IS0/TR 15608, Welding — Guidelines for a metallic materials grouping system 180 15609-6, Specification and qualification of welding procedures for metallic materials — Welding procedure specification — Part 6: Laser-arc hybrid welding ISO 15613, Specification and qualification of welding procedures for metallic materials — Qualification based on pre-production welding test 1S0 17636 (all parts), Non-destructive testing of welds — Radiographic testing organ onli? Sieh ights reserved 1 ISO 15614-14:2013(E) 180 17637, Non-destructive testing of welds — Visual testing of fusion-welded joints 180 17638, Non-desructive testing of welds — Magnetic particle testing 150 17639, Destructive tests on welds in metallic materials — Macroscopic and micrascopic examination of welds 180 17640, Non-destructive testing of welds — Ultrasonic testing — Techniques, testing levels, and assessment 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 15607 and the following apply. 3a hybrid welding ‘welding in which two or more welding processes are used simultaneously in the same weld pool Note 1 to entry: Hybrid welding is different than combinations of processes where at least two melt pools exist ‘which are completely separated by a solid component in the solidification phases. Examples of a combined process {@) and a laser-arc hybrid welding process (b) are given in Figure 1 by using a laser beam and the additfonal ‘energy source of an arc. 2 a) Combined process WY] \ yt 2 ! b) Hybrid process Key 1 laser beam 2 torch Figure 1 — Combination of welding processes 4 Preliminary welding procedure specification ‘Thepreliminary welding procedure specification (pWPS) shall be prepared inaccordance with ISO 15609-6. ran eryeons penene y suse © 150 2013 - All rights reserved ISO 15614-14:2013(E) 5 Wel ing procedure test ‘The welding and testing of test pieces shall be in accordance with Clauses 6 and 2. ‘The welding operator who undertakes the welding procedure test satisfactorily in accordance with this part of 180 15614 shall be qualified for the appropriate range of qualification in accordance with ISO 14732 provided the relevant testing requirements are met. 6. Test piece 6.1 General ‘The welded joint to which the welding procedure relates in production shall be represented by makinga standardized test piece or pieces, as specified in 6.2. Where the production joint geometry requirements do not represent the standardized test piece as shown in this part of ISO 15614, the use of ISO 15613, shall be required. ‘The length or number of test pieces shall be sufficient to allow all required tests ta be carried out. Additional test pieces, or longer test pieces than the minimum size, can be prepared in order to allow for extra or for re-testing specimens (see 7.6). Application standards can require larger test pieces. If required by the application standard, the direction of plate rolling shall be marked on the test piece ‘when impact tests are required to be taken in the heat-affected zone (HAZ). ‘The plate thickness or pipe outside diameter and wall thickness of the test pieces shall be selected in accordance with 8.3.2.1 t0 8.3.2.3. 6.2 Shapeand dimensions of test pieces 6.2.4 Buttjointin plate ‘The test piece shall be prepared in accordance with Figure 2. It may be used for fully and partially penetrated butt welds, 6.2.2 Buttjointin pipe ‘The test piece shall be prepared in accordance with Figure 3, It may be used for fully and partially penetrated butt welds, NOTE ‘The word “pipe’, alone or in combination, is used to mean “pipe”, “tube” or “hollow section", 623 ‘Tjoint ‘The test piece shall be prepared in accordance with Figure 4, It may be used for fully and partially penetrated butt welds or fillet welds. 6.24 Corner joint ‘The test piece shall be prepared in accordance with Figure 5. Itmay be used for fully and partially penetrated butt welds or fillet welds. congenial Sieh rights reserved a ISO 15614-14:2013(E) 6.2.5 Branch connection The pipe to pipe test piece shall be prepared in accordance with Figure 6. The angle « is the minimum to be used in production, It may be used for fully and partially penetrated joints (set-on or set-in or set-through joint) and for fillet welds. ‘The pipe to plate test piece shall be prepared in accordance with Figure 7. The angle cis the minimum to be used in production. It may be used for fully and partially penetrated joints (set-on or set-in or set-through joint) and for fillet welds. 6.3. Welding of test pieces Preparation and welding of test pieces shall be carried out in accordance with the pWPS, and under the general conditions of welding in production which they shall represent. Welding positions and limitations for the angle of slope and rotation of the test piece shall be in accordance with ISO 6947. If tack welds are to be fused into the final joint, they shall be included in the test piece. Welding and testing of the test pieces shall be witnessed by an examiner or an examining body. 1 Key 1 Joint preparation and fit-up as detailed in the pwWPS material thickness 3 Minimum width 150 mm, > Minimum length 350 mm. Figure 2 — Test piece for a buttjointin plate eran aon openene y suse © 150 2013 - All rights reserved ISO 15614-14:2013(E) Key 1 joint preparation and fit-up as detailed in the pwWPS 2 minimum length 150 mm D__ outside pipe diameter material thickness Figure 3 — Test piece for a butt joint in pipe ye 5 y =A, Key 1 Joint preparation and fit-up as detailed in the pwWPS 3,2 minimum width 150mm, minimum tength 350 mm material thickness, plate 1 2 material thickness, plate 2 Figure 4 — Test piece for a T-joint gern reeon ore Say ights reserved 5 ISO 15614-14:2013(E) fs Key 1 Jolntpreparation and i-up as detailed inthe pWPS a2 minim wth 150 mm minor Length 350 mm ‘material ticles, plate material thckness plate 2 Figure 5 — Test piece for a corner joint se ete seca (0150 2013 Alsighs reserved ISO 15614-14:2013(E) Key 1. Joint preparation and fit-up as detalled in the pWPS @ branch angle @ minimum length 150 mm Dy. outside diameter of the main pipe Dz_outside diameter of the branch pipe main pipe material thickness branch pipe material thickness Figure 6 — Test piece for a branch connection — Pipe to pipe organ onli? Sieh ights reserved 7 ISO 15614-14:2013(E) @ branch angle 1 joint preparation and fitup as detailed in the pwWPS 2 dimension of the plate; «> D + 6¢4: minimum dimension D + 150 mm outside diameter of the branch pipe 1 branch pipe length; minimum length 80 som ty plate material thickness branch pipe material thickness Figure 7 — Test piece for a branch connection — Pipe to plate 7 Examination and testing 7.1. Extent of examination and testing ‘Testing includes both non-destructive testing and destructive testing which shall be in accordance with the requirements of Table 1. NOTE Specific service, material or manufacturing conditions can require more comprehensive testing ‘than is specified by this part of ISO 15614 in order to gain more information and to avoid repeating the welding Procedure test at a later date just to obtain additional test data, An application standard may specify additional tests, e.g. — longitudinal weld tensile test; — all weld metal bend test; — corrosion tests; — chemical analysis; — microscopic examination; — delta ferrite examination; — cruciform test. eran tons pean y suse © 150 2013 - All rights reserved ISO 15614-14:2013(E) ‘Table 1 — Examination and tes 1g of the test pieces Test piece ‘Type oftest Extent of testing [Butt joint with full penetration (see Visual 100 % Figures 2 and 3) Radiographic or ultrasonics 100% Surface crack detection? 100% “Transverse tensile test Two specimens ‘Transverse bend test®™ Four specimens Impact test! ‘Two sets Hardness teste Required Macroscopic examination‘ Atleast one specimen 7: joint and corner joint with full Visuale 100% penetration (see Figures 4 and 5) Surface erack detections 100% [Branch connection with full pen- | Ultrasonicor radiographica.h 100% Jetration (see Figures 6 and 7) Hardness teste Required Macroscopic examination’ Atleast two specimens [Butt joint, Fjoint, corner joint and Visuale 100 % branch connection with partial Surface crack detection 100% penetration (see Figures 2 to 7) Hardness test Required Macroscopic examinations ‘Two specimens Ultrasonic testing shall not be used for t< 8 mm and not for material groups , 10,41 to 48, or information on material roups, see 3.1 > Penetration testing or magnetic particle testing. For non-magnetic materials, penetration testing J- For bend tests, see 74.3 J4 One set in the weld metal and one set in the HAZ for materfas 212 mm thick and taving specified impact properties. [Application standards may require impact testing below 12 mm thick. The testing temperature shall be chosen by| the manufacturer with regard to the application or application standard, but need not be lower than the parent metal specification, For additional tess see 74.5 > Notrequired for parent metals: subgroup 11, and groups 8,41 to 48 Fone section is required fora butt weldin plate. Two sections a from each overlap portion with different parameters. Far each standa required fora butt weld in pipe, additionally one ection ‘welding postion in accordance with IS0 6947. Je Tests a8 detailed do not provide information on the mechanical properties ofthe joint. Where these properties are relevant to the application, an additional qualification shal also he eld, ea butt weld qualification, h For outside diameter <50 mm no ultrasonic testis required. For outside diameter >50 mm and where tis not technically possiletocarty autultrasonic examination, aradiograph ic examination shall necarried at provided theoint configuration allows meaningful results. 7.2. Location and taking of test specimens ‘Test specimens shall be taken in accordance with Figures 8 to 13. ‘Test specimens shall be taken after all non-destructive testing (NDT) has been carried out and which has passed the relevant inspection criteria for the NDT method{s) used. It is acceptable to take the test specimens from locations avoiding areas which have imperfections ‘within the acceptance limits for the NDT method(s) used. organ onli? Sieh ights reserved 2 ISO 15614-14:2013(E) 1 Key 1 discard 25 mm 2 area for: — one tensile test specimen, — bend test specimens 3 area for: — impact and additional test specimens if required 4 area for —one tensile test specimen; — bend test specimens 5 area for — one macroscapic examination; — one hardness test specimen + Welding direction, NOTE Notto scale. Figure 8 — Location of test specimens for a butt joint in plate eran flo opeuane y susan © 150 2013 - All rights reserved Key ISO 15614-14:2013(E) 3,2 a) Uni-directional welding (orbital welding) 3,19 Uf, 3,2 b) Bi-directional welding (ser overlap zone (may be more than one) area for: — one tensile test specimen; — bend test specimens area for: — impact and additional test specimens if required. area for: — one macroscopic examination; —one hardiness test specimen Welding direction NOTE 1 Ifnominal energy per unit length (heat input) is constant (in case of rotating pipe, i.e. only one welding position), only one series of impact tests is required, NOTE 2 Zones are notto scale and can be oriented differently from that shown, Figure 9 — Location of test specimens for butt joint Pipe diet ights reserved un ISO 15614-14:2013(E) discard 25 mm ‘macrascople test specimen ‘macroscopic and hardness test specimen Welding direction, veere Figure 10 — Location of test specimens in a Tjoint eran tuo opener y susan © 150 2013 - All rights reserved ISO 15614-14:2013(E) Key 1 discard 25 mm 2 macroscopic test specimen 3 macroscopic or hardness test specimen 4 other tests (if required) Welding direction, Figure 11 — Location of test specimens in a corner joint Key @ branch angle 1 test specimen for macroscopic examination and hardness to be taken 2 _ test specimen for macroscopic examination to be taken from each overlap area Figure 12 — Location of test specimens in a pipe to pipe branch connection corre onli? Sahl rights reserved 13 ISO 15614-14:2013(E) 2 py WW Key branch angle 1 test specimen for macroscopic examination and hardness test specimen to be taken 2 test specimen far macroscopic examination to be taken from each overlap area Figure 13 — Location of test specimens in a pipe to plate branch connection 7.3. Non-destructive testing All non-destructive testing in accordance with 7.1 and ‘Table 1 shall be carried out on the test pieces prior to cutting of the test specimens. Any post-weld heat treatment that is specified shall be completed prior to non-destructive testing. For materials that are susceptible to hydrogen-induced cracking and where post-weld heat treatment or no post-weld heat treatmentiis specified, non-destructive testing shall be delayed in accordance with the application standard. Depending upon joint geometry, materials, and the requirements for work, the non-destructive testing shall be carried out as required in Table 1 in accordance with ISO 17637 (visual examination), ISO 17636 (all parts) (radiographic testing), ISO 17640 (ultrasonic testing), ISO 3452-1 (penetration testing), and [SO 17638 (magnetic particle testing). 7.4 Destructive testing 741 General The extent of testing shall be as required by Table 1. 7A.2 Transverse tensile test Specimens and testing for transverse tensile testing for butt joints shall be in accordance with ISO 4136. For pipes ~50 mm outside diameter, the excess weld metal shall be removed on both root and top faces to give the test specimen a thickness equal to the wall thickness of the pipe. For pipes <50 mm outside diameter, and when full section small diameter pipes are used, the exces weld metal may be left undressed on the inside surface of the pipe. ‘The tensile strength of the test specimen shall not be less than the corresponding specified minimum, value for the parent metal unless otherwise specified prior to testing. gran reo openane y susan © 180 2013 - All rights reserved ISO 15614-14:2013(E) For dissimilar parent metal joints, the tensile strength shall notbe less than the minimum value specified for the parent material having the lowest tensile strength. 7.4.3 Bend test ‘Specimens and testing for bend testing for butt joints shall be in accordance with ISO 5173, For thicknesses <12 mm, two root and two face bend test specimens shall be tested. For thicknesses 212 mm, four side bend specimens are recommended instead of root and face bend tests. For dissimilar metal joints or heterogeneous butt joints in plates, one root and one face longitudinal bend test specimen may be used instead of four transverse bend tests. ‘The diameter of the former or the inner roller, d, shall be 4¢ for parent metal with elongation 4 > 20%. For parent metal with elongation A « 20 % the following equation shall be applied: 100«e, where ts is the thickness of the bend test specimen; A_ isthe minimum tensile elongation required by the material specification. As a rule, the bend angle should be 180°, unless the strength or ductility of the parent metal or weld ‘metal impose other limitations. During testing, the test specimens shall not reveal any one single flaw >3 mm in any direction. Flaws appearing at the corners of a test specimen during testing shall be ignored in the evaluation, 7.44 Macroscopic examination The test specimens shall be prepared and etched in accordance with ISO 17639 on one side to clearly reveal the fusion line, the HAZ, and the build-up of the runs. ‘The macroscopic examination shall include unaffected parent metal and shall be recorded by at least ‘one macro-reproduction per procedure test. ‘The quality levels shall be in accordance with 2.5. 745 Impact testing ‘Test specimensand testing for impact tests shall be in accordance with this part of ISO 15614 forlocation of specimens and temperature of testing, and with ISO 9016 for dimensions and testing, For weld metal, test specimen type VWT (V: Charpy V-notch - W: notch in weld metal -T: notch through the thickness) and for HAZ specimen type VHT (V: Charpy V-notch - H: notch in HAZ-T: notch through the thickness) shall be used. From each specified location, each set shall be comprised of three specimens. Specimens with Charpy V-notch shall be used and sampled froma maximum of 2 mm below the surface of the parent metal and transverse to the weld. In the HAZ, the notch shall be as close as possible to the fusion line, and in the weld metal the notch shall be at the weld centreline. For thicknesses >20 mm, two additional sets of specimens shall be taken, one from the weld metal and one from the HAZ in the root area of the weld. organ onli? Sieh ights reserved 45 ISO 15614-14:2013(E) ‘The impact energy shall be in accordance with the appropriate parent material standard, unless modified by the application standard, The average value of the three specimens shall meet the specified requirements. For each notch location, one individual value may be below the minimum average value specified, provided itis not less than 70 % of that value, For dissimilar metal joints, impact tests shall be carried out on specimens from each HAZ in each parent metal. Where multiple welding processes are qualified in a single test piece, impact test specimens shall be taken from the weld metal and HAZ that include each pracess. 7.4.6 Hardness testing Vickers hardness testing shall be performed witha load matched to the weld geometry. Hardness values shall be determined for the weld metal, the HAZ and the parent metal. For material thicknesses <5 mm, only one row of indentations shall be made at a depth of <2 mm below the upper surface of the welded joint. For material thicknesses >5 mm, two rows of indentations shall be made at a depth of <2 mm below the upper and lower surfaces of the welded joint. For double sided welds, fillet and T-butt welds, one additional row of indentations shall be made through the root area. Examples of typical indentation patterns are shown in [SO 9015-1:2001, Figure 1, Figure 3, and Figure 4. For each row, select at least three individual indentations in each of the following areas: — the weld metal; — both HAZs; — both parent metals. For the HAZ, the first indentation shall be placed as close to the fusion line as possible. ‘The results from the hardness test shall meet the requirements given in Table 2. However requirements for Groups 6 (non postweld heat treatment), 7, 10 and 11 and any dissimilar metal joints shall be specified prior to testing, ‘Table 2 — Permitted maximum hardness values (HV 10) Steel groups!S0/ | won-postweld heat treatment | Heat treated 12 380 320 ED 450 380 45 380 0 6 = 350 3 350 300 82 450 350 93 450 350 F taranesstestsarerequled [b _Forstcls with minimum Ru> 890 N/mm special values shall bespoctid. 7.5 Quality levels ‘A welding procedure is qualified if the imperfections in the test piece are within the limits of the specified quality level in accordance with IS0 12932. The test piece has also passed a procedure test in accordance with quality level B ifthe imperfections of excess weld metal, excessive convexity, excessive throat thickness, and excessive penetration comply with quality level C NOTE The correlation between the quality levels of S0 12932 and the acceptance levels ofthe different NOT. techniques is given in ISO 7635.11) gran eto openene y susan © 180 2013 - All rights reserved ISO 15614-14:2013(E) 7.6 Re-testing Ifthe test piece fails to comply with any of the requirements for visual examination or NDT specified in LS, one further test piece shall be welded and subjected to the same examination. If this additional test piece does not comply with the requirements, it has failed the welding procedure test. Ifany test specimen fails to comply with the requirements for destructive testing in accordance with 7.4, bbut only due to weld imperfections, two further test specimens shall be tested for each one that failed ‘Theadditional test specimens can be taken from the same test piece if there is sufficient material or from. a new test piece. Each additional test specimen shall be subjected to the same tests as the initial test specimen that failed. If either of the additional test specimens does not comply with the requirements, ithas failed the welding procedure test, Ifa tensile test specimen fails to meet the requirements of 74.2, two further test specimens shall be obtained for each one that failed. Both shall satisfy the requirements of 24.2. For Charpy impact tests, where the results from a set of three specimens do not comply with the requirements, with only one lower value below 70 %, three additional specimens shall be taken. The average value of these three additional specimens and of the three initial specimens shall not be lower than the required value. 8 Range of qualification 8.1 General Each of the conditions given in this clause shall be met in order to comply with this part of ISO 15614. Changes outside the ranges spectfied shall require a new welding procedure test. 8.2. Related to the manufacturer A qualification of a pWPS by a welding procedure test according to this part of ISO 15614 obtained by a ‘manufacturer is valid for welding in workshops or sites under the same technical and quality control of the manufacturer, Welding is under the same technical and quality control when the manufacturer who performed the welding procedure test retains complete responsibility for all welding carried out based on the pWPS. 8.3. Related to the parent material 8.3.1 Parent material grouping 8.3.1.1 General In order to minimize the number of welding procedure tests, steels, nickel and nickel alloys are grouped in accordance with ISO/TR 15608, Separate welding procedure qualifications are required for each parent material or parent material combinations not covered by the grouping system. NOTE Minor compositional differences between similar grades arising from the use of national standards do not need requalification. 83.12 Steels ‘The ranges of qualification are given in Table 3. congo? eh ights reserved a7 ISO 15614-14:2013(E) 8.3.1.3 Nickel alloys The ranges of qualification are given in Table 4. 8.3.14 Dissimilar joints between steels and nickel alloys ‘The ranges of qualification are given in Table 4. ‘Table 3 — Range of qualification for steel groups and subgroups canter ot) ange of qualification i ma s3 B12 12-23-12 ot cere 55 Seossbo sho es (= 660-16-2 77 7 ra Tea? 72 hemid os ee bs Fe LETRA os BER O62, 06-4 6, es 0-33-12 62 wom 3-9 oo 0-10 «08-10 10-8 10h w-s 10 5105-1 109-2, 1054108 61, 105-62 10-3 10» - 34, 106-1, 106-2 10-2 1-1-1 unt 11th [tae meson or ner pone ata inte soo cavers secsin the ame subgrou and anylwer Abreu wn he seme UP corer naseawe gree gran rons openane y susan © 180 2013 - All rights reserved ISO 15614-14:2013(E) ‘Table 4 — Range of qualification for nickel alloy and nickel alloy/steel groups Maverial group of Range of qualification a4 ren a a4 ao ea 450— 45 AT a4 14044 A545 545 438 46-46 wer 46 7-40 70a AB 1B ABA aaa 460-48 Ato40-2 Hw 4-241 to 4-1 043 410 482-341 t048°-2or 1 e405 W150 ABH -62 oF 61 or or ZF 110486 4.0 486-6, 119408 ~40F 20rd NOTE For groups 41 to 48, a procedure test carried out with a precipitation-hardenable alloy ina group covers all preeiptation-hardenable alloys in that group welded to al solid solution alloys in the same group, + For groups 41 to 48, procedure cet earried out with a solid solution or preepitatton hardenable alloy in a group covers all solid solution or precipitation hardenable alloys respectively in the same group. > Covers steels of equal or lower specified yield strengths inthe same group. Covers stools in the same subgroup and any lower subgroup within the same group, ‘When impact testing is required, the welding procedure is qualified only for the service temperature at or above the test temperature. If lower service temperature is required, the impact testing shall be performed at the lower temperature. 8.3.2 Material thickness and pipe diameter 8.3.2.1 General For single process qualification, tis the thickness of the respective test piece, For multi-process qualification, the recorded thickness contribution of each process shall be used as a basis for the range of qualification for the individual welding process, organ onli? Sieh ights reserved Pr ISO 15614-14:2013(E) 8.3.2.2 Range of qualification for butt joints, T-joints, corner joints as well as branch connections a) Butt joint with complete and partial penetration (single-side and both-sides welded) (applies to plates and pipes). ‘Thickness of test piece Range of qualification t ¢, each combination shall be qualified separately and the qualification applies only to that combination, ©) Corner joint with complete and partial penetration (single-side and both-sides welded) ‘The range of qualification relates to the thickness of the fitted plate ¢1 (see Figure 5). Thickness of test piece Range of qualification t ¢2, each combination shall be qualified separately and the qualification applies only to that combination. 8.3.2.3 Range of qualification for the diameter of pipes and branch connections ‘The qualification of a welding procedure test on diameter, D, shall include qualification for diameters in the following ranges given in Table 5. Qualification given for plates also covers pipes when the outside diameter is >500 mm or when the diameter is >150 mm welded in the PA or PC ratated position accarding to ISO 6947, ‘Table 5 — Range of qualification for pipe and branch connection diameters Diameter of the test pieces D Range of qualification D225 0.50% 2 D225 20,5D (25 mm min.) NOTE For structural hollow section, Dis the dimension ofthe smaller side. [+The outside diameter of the pipe or outside diameter of the branch pipe eran rfl openaney suse © 150 2013 - All rights reserved ISO 15614-14:2013(E) 8.3.3 Angle of branch connection Awelding procedure test carried out on a branch connection with angle «shall qualify all branch angles ain the range sy 590°, 84 Related to wel ing process Each degree of mechanization shall be qualified independently (fully mechanized and automatic). ‘The qualification of laser-are hybrid welding in com by a multi-process procedure test, jon with other are processes shall be performed Itis not allowed to use a multi-process procedure test to qualify any carried out on the process conforms to this part of ISO 15614. ingle process unless the testing 8.5 Related to welding position ‘Welding of test in any one welding position qualifies only this welding position, 8.6 Related to type of joint or weld ‘Welding ofa test for any one type of joint or weld qualifies only this type of joint or weld 8.7. Related to number of layers ‘The qualified WPS is effective only insofar as the number of layers is the same as that used in the procedure test. 8.8. Related to filler material Filler materials cover other filler materials as long as they have equivalent mechanical properties, same type of covering, core or flux, same nominal composition, and the same or lower hydrogen content in accordance with the designation inthe appropriate International Standard for the iller material concerned, It is not permitted to change the diameter of the filler material. 8.9 Related to type of current ‘The qualification is given for the type of current [alternating current (AC), direct current (DC), pulsed current] and polarity used in the welding procedure test. 8.10 Related to preheating and interpass temperature When preheating is required, the lower limit of qu: applied at the start of the welding procedure test. ation is the nominal preheating temperature ‘The upper limit of the qualification is the highest interpass temperature reached in the welding procedure test, 8.11 Related to post-weld heat treatment ‘A change in the initial heat treatment condition prior to welding of precipitation hardenable materials is not permitted. Addition or deletion of post-weld heat treatment is not permitted. organ onli? Sieh ights reserved a ISO 15614-14:2013(E) ‘The temperature range validated is the holding temperature # 20 K used in the welding procedure test, unless otherwise specified. Where required, heating rates, cooling rates, and holding time shall be related ta the product. ‘The temperature and duration of postheating for hydrogen release shall not be reduced, Postheating shall not be omitted, but may be added 8.12 Nominal heat input ‘The upper limit of nominal heat input qualified is 15 % greater than that used in welding the test piece ‘The lower limit of nominal heat input qualified is 15 % lower than that used in welding the test piece. Nominal heat input, Quon is calculated as follows: (Piet) gs where nom is the nominal heat input, in kilojoule per millimetr P isthe laser power, in kilowatt; J istheare voltage, measured as near as possible to the are, in volt; 1 isthe welding current, in ampere; v isthe travel speed, in millimetres per second. If welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat inputs are also qualified. 8.13 Duration of validity ‘The duration of validity of the welding procedure qualification is unlimited provided no major modification of the welding machine has been made that changes laser beam characteristics or arc characteristics. 9. Welding procedure qualification record (WPQR) ‘The welding procedure qualification record (WPQR) is a statement of the results of assessing each test piece including re-tests. The relevant items listed for the WPS in ISO 15609-6 shall be included, together with details of any features that would be rejectable by the requirements of Clause 7. If no rejectable features or unacceptable test results are found, a WPQR detailing the welding procedure test piece results is qualified and shall be signed and dated by the examiner or the examining body. AWPQR template shall be used to record details for the welding procedure and the test results, in order to facilitate uniform presentation and assessment of the data. An example of a WPQR template is shown in Annex A, The user of this form is allowed to copy this, (present) form. eran ertuons opeuane y suse © 180 2013 - All rights reserved ISO 15614-14:2013(E) Annex A (informative) Welding procedure qualification record template (WPQR) fest results Manulacturer's WPOR-No, Examiner or examining body Visual Foterence No. PenetrantMagnatic parte" Radiography" Utrasonic" Tensile Tests Temperature: Type: Yee Tensile | Elongation after Fescture Remarks strength Re | siength Ry, | Wactute, 4 Location Pa Pa. % Reguremert Bend Tests Former Diameter Typene | _fendengie | _clongation™ Resulte Macroscopic Exarination: Impact test ps: Siz Reoouiement Notchlocation) | Temperature Values aversge Reneks ‘rostion . i: @ Hardness test (TypetL.oad) Location ofmeasurements(Sketch*] Parent Metal: haz: Weld metal ‘Other tte: Remarks: Tests cari out in aconrdance with the requirements of: Laboratory Report Reterence No. Test results were aceaptable/at acceptable (delete as appropriate) Tests caries out in presence ot “iteequires Examiner: examining body Name, date and signature organ onli? Sieh ights reserved 23 ISO 15614-14:2013(E) liography [1] 180 17635, Non-destructive testing of welds — General rules for metallic materials [2] 180 9015-1:2001, Destructive tests on welds in metallic materials — Hardness testing — Part 1: Hardness test on arc welded joints eran rhea opeane y susan © 180 2013 - All rights reserved ISO 15614-14:2013(E) ICS 25.160.10 Price based on 24 pages core Ota asc erved

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