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1、BRITISH STANDARD BS EN ISO 9606-4:1999 Approval testing of welders Fusion welding Part 4: Nickel and nickel alloys The European Standard EN ISO 9606-4:1999 has the status of a British Standard ICS 25.160.10 BS EN ISO 9606-4:1999 This British Standard, having been prepared under the direction of the
2、Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 BSI 03-2000 ISBN 0 580 32296 3 National foreword This British Standard is the English language version of EN ISO 9606-4:1999. It is identical with ISO 9606-4:1998. The UK p
3、articipation in its preparation was entrusted to Technical Committee WEE/36, Approval testing of welding procedures and welders, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or
4、proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN
5、 and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the sec
6、tion entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application
7、. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, pages 2 to 21 and a back cover. This standard has been updated (see copyright date) an
8、d may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments BS EN ISO 9606-4:1999 BSI 03-2000i Contents Page National forewordInside front cover Foreword2 Text of EN ISO 9606-45 ii blank EUR
9、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9606-4 April 1999 ICS 25.160.10 English version Approval testing of welders Fusion welding Part 4: Nickel and nickel alloys (ISO 9606-4:1999) Epreuve de qualification des soudeurs Soudage par fusion Partie 4: Nickel et ses alliages (ISO 9606-4:19
10、99) Prfung von Schweiern Schmelzschweien Teil 4: Nickel und Nickellegierungen (ISO 9606-4:1999) This European Standard was approved by CEN on 20 November 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
11、he status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, Germa
12、n). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Fin
13、land, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 B
14、russels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9606-4:1999 E EN ISO 9606-4:1999 BSI 03-2000 2 Foreword The text of EN ISO 9606-4:1999 has been prepared by Technical Committee CEN/TC 121 “Welding”, the secretariat
15、of which is held by DS, in collaboration with Technical Committee ISO/TC 44 “Welding and allied processes”. 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 October 1999, and conflicting national s
16、tandards shall be withdrawn at the latest by October 1999. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see info
17、rmative Annex ZB, which is an integral part of this standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
18、 Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 Introduction5 1Scope5 2Normative references5 3Definitions6 4Symbols and abbreviations6 4.1General6 4.2Test piece6 4.3Consumables6 4.4Miscellaneous6 5Essenti
19、al variables for approval testing6 5.1General6 5.2Welding processes6 5.3Joint types (butt and fillet welds)6 5.4Material groups6 5.5Consumables7 5.6Dimensions7 5.7Number of test pieces7 5.8Welding positions7 6Range of approval for the welder7 6.1General7 6.2Welding process7 6.3Joint types7 6.4Materi
20、al groups8 6.5Consumables8 6.6Dimensions8 6.7Welding positions8 7Examination and testing10 7.1Supervision10 7.2Shapes and dimensions of test pieces10 7.3Welding conditions11 7.4Test methods12 7.5Test piece and specimens12 8Acceptance requirements for test pieces14 9Re-tests14 10Period of validity14
21、10.1 Initial approval14 10.2 Prolongation16 11Certificate16 12Designation16 Annex A (informative) Job knowledge18 Annex ZA (informative) Bibliography20 EN ISO 9606-4:1999 BSI 03-20003 Page Annex ZB (informative) Clauses of this European Standard addressing essential requirements or other provisions
22、of EU Directives21 Figure 1 Dimensions of test piece for a butt weld in plate10 Figure 2 Dimensions of test piece for fillet weld(s) on plate10 Figure 3 Dimensions of test piece for a butt weld in pipe11 Figure 4 Dimensions of test piece for a fillet weld on pipe11 Figure 5 Preparation and fracture
23、testing of test specimens for a butt weld in plate13 Figure 6 Preparation and fracture testing of test specimens for a fillet weld on plate14 Figure 7 Preparation and fracture testing of test specimens for a butt weld in pipe15 Figure 8 Preparation and fracture testing of test specimens for a fillet
24、 weld on pipe16 Table 1 Test piece (plate or pipe) and range of approval7 Table 2 Test piece diameter and range of approval7 Table 3 Range of approval for tests on butt joints (Detail of weld type)8 Table 4 Range of approval according to welding position9 Table 5 Test methods12 Table ZA.1 ISO standa
25、rds corresponding to European standards quoted in clause 220 Table ZB.121 4 blank EN ISO 9606-4:1999 BSI 03-20005 Introduction This standard covers the principles to be observed in the approval testing of welder performance for the fusion welding of nickel and nickel alloys. The term “nickel” stands
26、 for nickel and weldable nickel alloys. The ability of the welder to follow verbal or written instructions and testing of his skill are therefore important factors in ensuring the quality of the welded product. Testing of skill to this standard depends on welding methods in which uniform rules and t
27、est conditions are complied with, and standard test pieces are used. The test weld can be used to approve a welding procedure and a welder provided that all the relevant requirements, e.g. test piece dimensions, are satisfied (see relevant part of EN 288-2). 1 Scope This standard specifies essential
28、 requirements, ranges of approval, test conditions, acceptance requirements and certification for the approval testing of welder performance for the welding of nickel. This standard applies to the approval testing of welders for the fusion welding of nickel. This standard is intended to provide the
29、basis for the mutual recognition by examining bodies for approval relating to welders competence in the various fields of application. Tests will be carried out in accordance with this standard unless more severe tests are specified by the relevant application standard when these are applied. During
30、 the approval test the welder should be required to show adequate practical experience and job knowledge (test non mandatory) of the welding processes, materials and safety requirements for which he is to be approved; information on these aspects is given in Annex A. This standard is applicable when
31、 the welders approval testing is required by the purchaser, by inspection authorities or by other organizations. The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized a
32、nd automatic processes (see 5.2). This standard covers approval testing of welders for work on semi-finished and finished products made from wrought, forged or cast material types listed in 5.4. The certificate of approval testing is issued under the sole responsibility of the examiner or examining
33、body. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or
34、revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 287-1:1992, Approval testing of welders Fusion welding Part 1: Steels. EN 288-2:1992, Spe
35、cification and approval of welding procedures for metallic materials Part 2: Welding procedure specification for arc welding. EN 571-1, Non destructive testing Penetrant testing Part 1: General principles. EN 910, Destructive test on welds in metallic materials Bend tests. EN 970, Non-destructive ex
36、amination of fusion welds Visual examination. EN 1289, Non-destructive examination of welds Penetrant testing of welds Acceptance levels. EN 1320, Destructive tests on welds in metallic materials Fracture test. EN 1321, Destructive tests on welds in metallic materials Macroscopic and microscopic exa
37、mination of welds. EN 1435, Non-destructive examination of welds Radiographic examination of welded joints. EN 24063:1992, Welding, brazing, soldering and braze welding of metals Nomenclature of processes and reference numbers for symbolic representation on drawings. (ISO 4063:1990) EN 25817:1992, A
38、rc-welded joints in steel Guidance on quality levels for imperfections. (ISO 5817:1992) EN 26520:1991, Classification of imperfections in metallic fusion welds, with explanations. (ISO 6520:1982) EN ISO 6947:1997, Welds Working positions Definitions of angles of slope and rotation. (ISO 6947:1993) C
39、R 12187, Welding Guidelines for a grouping system of materials for welding purposes. ISO 857:1990, Welding, brazing and soldering processes Vocabulary. EN ISO 9606-4:1999 6 BSI 03-2000 3 Definitions For the purposes of this standard the definitions given in EN 287-1 apply. 4 Symbols and abbreviation
40、s 4.1 General Where the full wording is not used, the following symbols and abbreviations shall be used when completing the test certificate (see Annex B of EN 287-1:1992). 4.2 Test piece 4.3 Consumables 4.4 Miscellaneous 5 Essential variables for approval testing 5.1 General The criteria specified
41、in this clause shall be examined in order to identify the ability of the welder in these areas. Each criterion is considered to be a significant factor in the approval testing. The welders approval test shall be carried out on test pieces and is independent of the type of construction. 5.2 Welding p
42、rocesses Welding processes are defined in ISO 857 and reference numbers of welding processes for symbolic representation are listed in EN 24063. This standard covers the following welding processes: other fusion welding processes by agreement. 5.3 Joint types (butt and fillet welds) Test pieces shal
43、l be produced for butt weld (BW) and fillet weld (FW) in plates (P) or pipes1) (T) for approval tests in accordance with 7.2. 5.4 Material groups 5.4.1 General In order to minimize unnecessary multiplication of technically identical tests, nickel with similar metallurgical and welding characteristic
44、s are grouped for the purpose of a welders approval (see 5.4.2). In general, a welders approval test shall involve depositing weld metal having a chemical composition compatible with any of the nickel in the parent metal group(s). 5.4.2 Nickel groups of parent metal 5.4.2.1 General Nickel casting al
45、loys are included in the following groups but the filler metal shall be compatible with the filler metal used for the wrought materials in the same group. Material groups according to CR 12187 5.4.2.2 Group W 41: Pure nickel 5.4.2.3 Group W 42: Nickel-copper alloys Ni U 45 %, Cu 10 % 5.4.2.4 Group W
46、 43: Nickel-chromium alloys (Ni/Fe/Cr/Mo) Ni U 40 % 5.4.2.5 Group W 44: Nickel-molybdenum alloys (Ni/Mo) Ni U 45 %, Mo k30 % 5.4.2.6 Group W 45: Nickel-iron-chromium alloys (Ni/Fe/Cr) Ni U 45 % 5.4.2.7 Group W 46: Nickel-chromium-cobalt alloys (Ni/Cr/Co) Ni U 45 %, Co U10 % 5.4.2.8 Group W 47: Nicke
47、l-iron-chromium-copper alloys (Ni/Fe/Cr/Cu) Ni U 45 % anominal throat thickness; BWbutt weld; Doutside diameter of pipe; FWfillet weld; Pplate; tplate or pipe wall thickness; Tpipe; zleg length of fillet weld. nmno filler metal; wmwith filler metal. bswelding from both sides; ggback gouging or back
48、grinding of welds; mbwelding with backing material; nbwelding without backing; ngno back gouging or no back grinding; sssingle-side welding. 111metal-arc welding with covered electrode; 131metal-arc inert gas welding (MIG welding); 135metal-arc active gas welding (MAG welding); 136flux-cored wire me
49、tal-arc welding with active gas shield; 141tungsten inert gas arc welding (TIG welding); 15plasma arc welding; 1) The word “pipe”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section”. EN ISO 9606-4:1999 BSI 03-20007 5.5 Consumables It is assumed that in most approval tests the filler metal will be similar to the parent metal. When a welders test according to a relevant pWPS or WPS has been carried out using a filler metal and shielding gas suitable for th
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