BS EN ISO 9606-4-1999 Approval testing of welders - Fusion welding - Nickel and nickel alloys《焊工的认可测试 熔焊 镍及镍合金》.pdf

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1、BRITISH STANDARD BS ENISO 9606-4:1999 Approval testing of welders Fusionwelding Part4: Nickel and nickel alloys The European Standard EN ISO9606-4:1999 has the status of a BritishStandard ICS 25.160.10BSENISO9606-4:1999 This BritishStandard, having been prepared under the directionof the Engineering

2、 SectorCommittee, was publishedunder the authorityofthe Standards Committee andcomes into effect on 15May1999 BSI03-2000 ISBN 0 580 32296 3 National foreword This BritishStandard is the English language version of EN ISO9606-4:1999. It is identical with ISO9606-4:1998. The UK participation in its pr

3、eparation 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 proposals for change,

4、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 and CENELEC standards

5、 normally include an annex which lists normative references to international publications with their corresponding European publications. The BritishStandards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “Internat

6、ional 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. Compliance with a Bri

7、tish Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN ISO title page, pages2 to21 and a back cover. This standard has been updated (see copyright date) and may have had amendments in

8、corporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSENISO9606-4:1999 BSI 03-2000 i Contents Page National foreword Inside front cover Foreword 2 Text of EN ISO9606-4 5ii blankEUROPEAN STANDARD NORME EUROPENN

9、E EUROPISCHE NORM EN ISO9606-4 April 1999 ICS 25.160.10 English version Approval testing of welders Fusion welding Part4: Nickel and nickel alloys (ISO9606-4:1999) Epreuve de qualification des soudeurs Soudage par fusion Partie4: Nickel et ses alliages (ISO9606-4:1999) Prfung von Schweiern Schmelzsc

10、hweien Teil4: Nickel und Nickellegierungen (ISO9606-4:1999) This European Standard was approved by CEN on20November1998. 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 withou

11、t 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, German). A version in any other language mad

12、e 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, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland,

13、Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitati

14、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO9606-4:1999 EENISO9606-4:1999 BSI 03-2000 2 Foreword The text of EN ISO9606-4:1999 has been prepared by Technical Committee CEN/TC121 “Welding”, the secretariat of which is held by DS, in collaboration with T

15、echnical Committee ISO/TC44 “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 October1999, and conflicting national standards shall be withdrawn at the latest by Octo

16、ber1999. 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), seeinformative Annex ZB, which is an integral part of this

17、 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, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, N

18、orway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. Contents Page Foreword 2 Introduction 5 1 Scope 5 2 Normative references 5 3 Definitions 6 4 Symbols and abbreviations 6 4.1 General 6 4.2 Test piece 6 4.3 Consumables 6 4.4 Miscellaneous 6 5 Essential variables for approval testing

19、6 5.1 General 6 5.2 Welding processes 6 5.3 Joint types (butt and fillet welds) 6 5.4 Material groups 6 5.5 Consumables 7 5.6 Dimensions 7 5.7 Number of test pieces 7 5.8 Welding positions 7 6 Range of approval for the welder 7 6.1 General 7 6.2 Welding process 7 6.3 Joint types 7 6.4 Material group

20、s 8 6.5 Consumables 8 6.6 Dimensions 8 6.7 Welding positions 8 7 Examination and testing 10 7.1 Supervision 10 7.2 Shapes and dimensions of test pieces 10 7.3 Welding conditions 11 7.4 Test methods 12 7.5 Test piece and specimens 12 8 Acceptance requirements for test pieces 14 9 Re-tests 14 10 Perio

21、d of validity 14 10.1 Initial approval 14 10.2 Prolongation 16 11 Certificate 16 12 Designation 16 Annex A (informative) Job knowledge 18 Annex ZA (informative) Bibliography 20ENISO9606-4:1999 BSI 03-2000 3 Page Annex ZB (informative) Clauses of this European Standard addressing essential requiremen

22、ts or other provisions of EU Directives 21 Figure 1 Dimensions of test piece for a butt weld in plate 10 Figure 2 Dimensions of test piece for fillet weld(s) on plate 10 Figure 3 Dimensions of test piece for a butt weld in pipe 11 Figure 4 Dimensions of test piece for a fillet weld on pipe 11 Figure

23、 5 Preparation and fracture testing of test specimens for a butt weld in plate 13 Figure 6 Preparation and fracture testing of test specimens for a fillet weld on plate 14 Figure 7 Preparation and fracture testing of test specimens for a butt weld in pipe 15 Figure 8 Preparation and fracture testing

24、 of test specimens for a fillet weld on pipe 16 Table 1 Test piece (plate or pipe) and range of approval 7 Table 2 Test piece diameter and range of approval 7 Table 3 Range of approval for tests on butt joints (Detail of weld type) 8 Table 4 Range of approval according to welding position 9 Table 5

25、Test methods 12 Table ZA.1 ISO standards corresponding to European standards quoted in clause2 20 Table ZB.1 214 blankENISO9606-4:1999 BSI 03-2000 5 Introduction This standard covers the principles to be observed in the approval testing of welder performance for the fusion welding of nickel and nick

26、el alloys. The term “nickel” stands 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 m

27、ethods in which uniform rules and test 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 (seerelevant part of EN288-2). 1 Scope T

28、his standard specifies essential 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 stan

29、dard is intended to provide the 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 standar

30、d when these are applied. During 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.

31、This standard is applicable when 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 d

32、oes not cover fully mechanized and automatic processes (see5.2). This standard covers approval testing of welders for work on semi-finished and finished products made from wrought, forged or cast material types listed in5.4. The certificate of approval testing is issued under the sole responsibility

33、 of the examiner or examining 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

34、, subsequent amendments to or 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. EN287-1:1992, Approval testing of welders Fusion welding Part1

35、: Steels. EN288-2:1992, Specification and approval of welding procedures for metallic materials Part2:Welding procedure specification for arc welding. EN571-1, Non destructive testing Penetrant testing Part1: General principles. EN910, Destructive test on welds in metallic materials Bend tests. EN97

36、0, Non-destructive examination of fusion welds Visual examination. EN1289, Non-destructive examination of welds Penetrant testing of welds Acceptance levels. EN1320, Destructive tests on welds in metallic materials Fracture test. EN1321, Destructive tests on welds in metallic materials Macroscopic a

37、nd microscopic examination of welds. EN1435, Non-destructive examination of welds Radiographic examination of welded joints. EN24063:1992, Welding, brazing, soldering and braze welding of metals Nomenclature of processes and reference numbers for symbolic representation on drawings. (ISO4063:1990) E

38、N25817:1992, Arc-welded joints in steel Guidance on quality levels for imperfections. (ISO5817:1992) EN26520:1991, Classification of imperfections in metallic fusion welds, with explanations. (ISO6520:1982) EN ISO6947:1997, Welds Working positions Definitions of angles of slope and rotation. (ISO694

39、7:1993) CR12187, Welding Guidelines for a grouping system of materials for welding purposes. ISO857:1990, Welding, brazing and soldering processes Vocabulary. ENISO9606-4:1999 6 BSI 03-2000 3 Definitions For the purposes of this standard the definitions given in EN287-1 apply. 4 Symbols and abbrevia

40、tions 4.1 General Where the full wording is not used, the following symbols and abbreviations shall be used when completing the test certificate (seeAnnex B of EN287-1:1992). 4.2 Test piece 4.3 Consumables 4.4 Miscellaneous 5 Essential variables for approval testing 5.1 General The criteria specifie

41、d 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

42、 processes Welding processes are defined in ISO857 and reference numbers of welding processes for symbolic representation are listed in EN24063. 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 pipes 1)(T) for approval tests in accordance with7.2. 5.4 Material groups 5.4.1 General In order to minimize unnecessary multiplication of technically identical tests, nickel with similar metallurgical and welding characteristics

44、 are grouped for the purpose of a welders approval (see5.4.2). 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 allo

45、ys 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 CR12187 5.4.2.2 Group W41: Pure nickel 5.4.2.3 Group W42: Nickel-copper alloys NiU 45%, Cu10% 5.4.2.4 Group W43: Nicke

46、l-chromium alloys (Ni/Fe/Cr/Mo) NiU 40% 5.4.2.5 Group W44: Nickel-molybdenum alloys (Ni/Mo) NiU 45%, Mok30% 5.4.2.6 Group W45: Nickel-iron-chromium alloys (Ni/Fe/Cr) NiU 45% 5.4.2.7 Group W46: Nickel-chromium-cobalt alloys (Ni/Cr/Co) NiU 45%, CoU10% 5.4.2.8 Group W47: Nickel-iron-chromium-copper all

47、oys (Ni/Fe/Cr/Cu) NiU 45% a nominal throat thickness; BW butt weld; D outside diameter of pipe; FW fillet weld; P plate; t plate or pipe wall thickness; T pipe; z leg length of fillet weld. nm no filler metal; wm with filler metal. bs welding from both sides; gg back gouging or back grinding of weld

48、s; mb welding with backing material; nb welding without backing; ng no back gouging or no back grinding; ss single-side welding. 111 metal-arc welding with covered electrode; 131 metal-arc inert gas welding (MIG welding); 135 metal-arc active gas welding (MAG welding); 136 flux-cored wire metal-arc

49、welding with active gas shield; 141 tungsten inert gas arc welding (TIGwelding); 15 plasma arc welding; 1) The word “pipe”, alone or in combination, is used to mean “pipe”, “tube” or “hollow section”.ENISO9606-4:1999 BSI 03-2000 7 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 that material group, this test will c