1、BSI Standards PublicationDestructive tests on welds in metallic materials Tensile test on cruciform and lappedjointsBS EN ISO 9018:2015National forewordThis British Standard is the UK implementation of EN ISO 9018:2015.It supersedes BS EN ISO 9018:2003 which is withdrawn. The UK participation in its
2、 preparation was entrusted to TechnicalCommittee WEE/2, Destructive Testing of Welds.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its
3、correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 87797 1ICS 25.160.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Str
4、ategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 9018:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9018 November 2015 ICS 25.160.40 Supersedes EN ISO 9018:2003English Version Destructive tests on welds in me
5、tallic materials - Tensile test on cruciform and lapped joints (ISO 9018:2015) Essais destructifs des soudures sur matriaux mtalliques - Essai de traction des assemblages en croix et recouvrement (ISO 9018:2015) Zerstrende Prfung von Schweiverbindungen an metallischen Werkstoffen - Zugversuch am Dop
6、pel-T-Sto und berlappsto (ISO 9018:2015) This European Standard was approved by CEN on 26 September 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteratio
7、n. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by
8、translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, F
9、inland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZ
10、ATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9018:2015 E2 Contents Page European forew
11、ord . 3 EN ISO 9018:2015 (E) BS EN ISO 9018:20153 European foreword This document (EN ISO 9018:2015) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held
12、by DIN. 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 May 2016, and conflicting national standards shall be withdrawn at the latest by May 2016. Attention is drawn to the possibility that some o
13、f the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 9018:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of t
14、he following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nether
15、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 9018:2015 has been approved by CEN as EN ISO 9018:2015 without any modification. BS EN ISO 9018:2015EN ISO 9018:2015 (E) ISO 2015Destructive tes
16、ts on welds in metallic materials Tensile test on cruciform and lapped jointsEssais destructifs des soudures sur matriaux mtalliques Essai de traction des assemblages en croix et recouvrementINTERNATIONAL STANDARDISO9018Second edition2015-10-15Reference numberISO 9018:2015(E)BS EN ISO 9018:2015ISO 9
17、018:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
18、 or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fa
19、x +41 22 749 09 47copyrightiso.orgwww.iso.orgBS EN ISO 9018:2015ISO 9018:2015(E)Foreword iv1 Scope . 12 Normative references 13 Symbols and abbreviated terms . 14 Principle 25 Test pieces and test specimens 25.1 Test pieces . 25.2 Test specimens 25.2.1 Dimensions . 25.2.2 Marking 25.3 Heat treatment
20、 and/or ageing . 25.4 Extraction of test pieces 35.4.1 General 35.4.2 Steel . 35.4.3 Surface preparation . 36 Method of testing 67 Test report . 78 Evaluation of results . 7Annex A (informative) Example of a test report . 8 ISO 2015 All rights reserved iiiContents PageBS EN ISO 9018:2015ISO 9018:201
21、5(E)ForewordISO (the International Organization for 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
22、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. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matt
23、ers of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This doc
24、ument was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).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 s
25、uch patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and do
26、es not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary inform
27、ationThe committee responsible for this document is ISO/TC 44, Welding and allied processes, SC 5, Testing and inspection of welds.This second edition cancels and replaces the first edition (ISO 9018:2003), of which it constitutes a minor revision.Requests for official interpretations of any aspect
28、of this standard should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body, a complete listing which can be found at www.iso.org.iv ISO 2015 All rights reservedBS EN ISO 9018:2015INTERNATIONAL STANDARD ISO 9018:2015(E)Destructive tests on welds in metallic materials Te
29、nsile test on cruciform and lapped joints1 ScopeThis International Standard specifies the sizes of test pieces and test specimens, and the procedure for carrying out tensile tests, for determining the tensile strength and location of fractures in welded joints with transverse stressed fillet welds.I
30、t is applicable to metallic materials with welded cruciform and lapped joints on plates, where the term plate alone or in combination refers to plates, sheets, extruded bars or other solid sections.Information concerning the evaluation of test results is not included in this International Standard.2
31、 Normative referencesThe following 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 amendme
32、nts) applies.ISO 6892-1, Metallic materials Tensile testing Part 1: Method of test at room temperature3 Symbols and abbreviated termsThe symbols used for the tensile tests are specified in Table 1 and Figures 1 to 5.Table 1 Symbols and abbreviated termsSymbol Designation Unita, a1, a2, a3, a4Fillet
33、weld throat thickness mmAfFracture area (wf b) mm2b Width of the test specimen equal to the length of fracture surfacemmc Free length between section to be tested and grips of testing devicemmd Length of test plates used mmf Gap width for lapped specimens mmFmMaximum load sustained by the test speci
34、men during testing NLtTotal length of the test specimen mmRmTensile strength (Fm/Af) MPat1, t2, t3Thicknesses of the materials used to prepare test pieces and test specimensmmwfWidth of the fracture surface ammaSee Figure 1. ISO 2015 All rights reserved 1BS EN ISO 9018:2015ISO 9018:2015(E)Figure 1 D
35、efinition of width of fracture surface4 PrincipleAn increasing tensile load is continuously applied to a test specimen taken from a welded joint until rupture occurs.Unless otherwise specified, the test shall be carried out at 23 C 5 C.Unless otherwise stated, the general principles of ISO 6892-1 ap
36、ply.5 Test pieces and test specimens5.1 Test piecesThe test pieces shall be prepared and welded in accordance with the relevant application standard and Figures 2 and 4. Linear misalignment and angular distortion of the test pieces should be kept to a minimum and recorded on the test report.5.2 Test
37、 specimens5.2.1 DimensionsThe dimensions of the test specimens shall be in accordance with Figures 3 and 5. The weld axis shall remain perpendicular to the longitudinal direction of the specimen.5.2.2 MarkingEach test specimen shall be marked to identify its exact location in the test piece. If requ
38、ired by the relevant application standard, the direction of working (e.g. rolling or extrusion) shall be marked.5.3 Heat treatment and/or ageingNo heat treatment shall be applied to the welded joint or to the test specimen unless it is specified or permitted by the relevant application standard deal
39、ing with the welded joint to be tested. Details of any heat treatment shall be recorded in the test report; see Annex A for an example of a test report. If natural ageing of aluminium alloys takes place, the time between welding and testing shall be recorded.2 ISO 2015 All rights reservedBS EN ISO 9
40、018:2015ISO 9018:2015(E)5.4 Extraction of test pieces5.4.1 GeneralThe mechanical or thermal processes used to extract the test specimen shall not change the properties of the test specimen in any way.5.4.2 SteelSawing or milling shall be used.If thermal cutting or other cutting methods that could af
41、fect the cut surface are used to cut the test specimen from the test piece, the cuts shall be at least 8 mm from the edge surface of the test specimen.5.4.3 Surface preparationThe final stages of preparation shall be obtained by machining or grinding, suitable precautions being taken to avoid superf
42、icial strain hardening or excessive heating of the material. The surfaces shall be free from scratches or notches transverse to the test specimen direction in the free length to be tested, except for undercut which shall not be removed unless required by the relevant application standard.Dimensions
43、in millimetresaEnd pieces are to be discarded.Figure 2 Location of specimen from a cruciform connection ISO 2015 All rights reserved 3BS EN ISO 9018:2015ISO 9018:2015(E)Dimensions in millimetresKeyt production test: thickness of product d 150procedure test: t1= t2= t330 b 50; 3t b 50a procedure test
44、: c 2baccording to requirement of application standard Lt= 2 d + t2or, if not given: 0,5 t1a1 a2 a3 a4production test: as delivered Figure 3 Cruciform test specimen4 ISO 2015 All rights reservedBS EN ISO 9018:2015ISO 9018:2015(E)Dimensions in millimetresaEnd pieces are to be discarded.Figure 4 Locat
45、ion of specimen from a lapped connection ISO 2015 All rights reserved 5BS EN ISO 9018:2015ISO 9018:2015(E)Dimensions in millimetresKeyt production test: thickness of product d 150procedure test: t1= t230 b 50; 3t b 50a procedure test: c 2baccording to requirement of application standard Lt= 2 d + fo
46、r, if not given: 0,5 t1a1 a2 a3 a4production test: as delivered Figure 5 Lapped test specimen6 Method of testingPrior to testing, the dimensions of the test piece shall be measured and recorded.The test specimen shall be loaded gradually and continuously in a direction perpendicular to the weld axis
47、 until rupture occurs. The speed of loading shall be as uniform as possible; testing shall be progressive and without abrupt changes (see ISO 6892-1).After testing, the following shall be measured and/or the result/information recorded (see Clause 7): the test temperature, T; the fracture surfaces s
48、hall be examined and the existence of any imperfections, including their type, size and amount shall be recorded. If fish eyes are present, their location shall be recorded. Only the central regions of fish eyes shall be considered as imperfections;6 ISO 2015 All rights reservedBS EN ISO 9018:2015IS
49、O 9018:2015(E) the average width of the fracture surface wf(see Figure 1) shall be determined by measuring at several points across the fracture at a spacing of approximately 3 a and dividing by the total number of measurements; the tensile strength, Rm, calculated as the ratio of the maximum load, Fm, sustained by the test specimen during testing and the fracture area, Af, expressed in MPa.If the plate delaminates, the test should be c
