DIN EN ISO 9606-4-1999 Approval testing of welders - Fusion welding - Part 4 Nickel and nickel alloys (ISO 9696-4 1999) German version EN ISO 9606-4 1999《焊工的认可试验 熔焊 第4部分 镍和镍合金》.pdf

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1、DEUTSCHE NORM June 1999 I Approval testing of welders - Fusion welding Part 4: Nickel and nickel alloys - EN IS0 96064 (IS0 9606-4 : 1999) English version of DIN EN IS0 9606-4 ICs 25.160.10 This standard, together with DIN EN 287-2, September 1997 edition, and DIN EN IS0 9606-3, June 1999 edition, s

2、upersedes DIN 8561, February 1974 edition. Prfung von Schweiern - Schmelzschweien - Teil 4: Nickel und Nickellegierungen (IS0 9606-4 : 1999) European Standard EN IS0 9606-4 : 1999 has the status of a DIN Standard. A comma is used as the decimal marker. National foreword This standard has been publis

3、hed in accordance with a decision taken by CEN/TC 121 to adopt, without alteration, International Standard IS0 9606-4 as a European Standard. The responsible German body involved in its preparation was the Normenausschu Schweifechnik (Weld- ing Standards Committee). The aim of this standard is to en

4、sure that the approval testing of welders is performed under the same conditions and using the same types of test piece, irrespective of where such tests are held. By passing the test as specified here, a welder demonstrates that he is adequately qualified to be employed for the fusion welding of st

5、eel in industry within the scope specified in this standard. The standard thus provides a basis for mutual recognition of welder approval test certificates by the bodies responsible for the various fields of application. This standard does not provide information on examiners and testing bodies invo

6、lved in the approval testing of welders since these are indicated in the relevant legal regulations, specialized standards, codes of practice, or technical delivery conditions. Welders who apply for approval in Germany are required to take the job knowledge test detailed in annex A. Welders who are

7、employed in Germany and have not passed such a test will be at least required to dem- onstrate that they have some knowledge in occupational safety and accident prevention. DIN V 1738 is the standard corresponding to CEN Report CR 121 87 referred to in clause 2 of the EN. Amendments DIN 8561, Februa

8、ry 1974 edition, has been superseded by the specifications of EN 287-2, September 1997 edition, EN IS0 9606-3 and EN IS0 9606-4, June 1999 editions. Previous edition DIN 8561 : 1974-02. National Annex NA Standard referred to (and not included in Normative references and Annex ZA) DIN V 1738 Welding

9、- Guidelines for a grouping system of materials for welding purposes EN comprises 23 pages. No pari of this standard may be reproduced without the prior permission of Ref. No. DIN EN IS0 9606-4 : 1999-0 Y Deutsches Institut fr Normung e. V., Berlin. wth Verlag GmbH, D-10772 Berlin, has the exclusive

10、 right of sale for German Standards (DIN-Normen). English price group 12 Sales No. 11 12 12.99 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 9606-4 April 1999 ICs 25.160.10 English version Approval testing of welders - Fusion welding Part 4: Nickel and nickel alloys (IS0 9606-4 : 1999) Ep

11、reuve de qualification des soudeurs - Soudage par fusion - Partie 4: Nickel et ses alliages Prfung von Schweiern - Schmelz- schweien - Teil 4: Nickel und Nickellegierungen (IS0 9606-4 : 1999) (IS0 9606-4 : 1999) This European Standard was approved by CEN on 1998-1 1-20. CEN members are bound to comp

12、ly with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national stand- ards may be obtained on application to the Central Se

13、cretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). 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 off

14、icial versions. CEN members are the national standards bodies of Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom. CEN European Committee for Sta

15、ndardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1999. CEN - All rights of exploitation in any form and by any means reserved worldwide for CEN national members. Ref. No. EN IS0 9606-4 : 1999 E Page 2 EN IS0 9606-4

16、: 1999 Contents Page Foreword . 3 Introduction . 4 1 Scope 4 2 Normative references 4 3 Definitions 5 4 Symbols and abbreviations 5 4.1 General . 5 4.2 Test piece . 5 4.3 Consumables . 5 4.4 Miscellaneous 5 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 6 . 6.1 6.2 6.3 6.4 6.5 6.6 6.7 Essential variables for app

17、roval testing 5 General . 5 Welding processes . 6 Joint types (butt and fillet welds) . 6 Materialgroups . 6 Consumables . 6 Dimensions 6 Number of test pieces 7 Welding positions 7 Range of approval for the welder . 7 General . 7 Welding process . 7 Jointtypes . 7 Material groups . 8 Consumables .

18、8 Dimensions 9 Welding positions 9 7 Examination and testing 11 7.1 Supervision 11 7.2 Shapes and dimensions of test pieces . 11 7.3 Welding conditions . 12 7.4 Test methods . 13 7.5 Test piece and specimens 13 8 Acceptance requirements for test pieces . 17 9 Retests 17 10 Periodof validity . 17 10.

19、1 Initial approval 17 10.2 Prolongation 18 11 Certificate . 18 12 Designation . 18 Annex A (informative) Job knowledge 20 Annex ZA (informative) Bibliography . 22 Annex ZB (informative) Clauses of this European Standard addressing essential requirements or other provisions of EU Directives 23 Page 3

20、 EN IS0 9606-4 : 1999 Foreword The text of EN IS0 9606-4:1999 has been prepared by Technical Committee CENTTC 121 “Welding“, the secretariat of which is held by DS, in collaboration with Technical Cornmittee ISOTTC 44 “Welding and allied processes“. This European Standard shall be given the status o

21、f a national standard, either by publication of an identical text or by endorsement, at the latest by October 1999, and conflicting national standards 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 an

22、d the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive), see informative Annex ZB, which is an integral part of this standard. According to the CENKENELEC Intemal Regulations, the national standards organizations of the follo

23、wing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN IS0 9606-4 : 1999 Introduction T

24、his 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 for nickel and weldable nickel alloys. The ability of the welder to follow verbal or written instructions and testing of his sk

25、ill 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 test conditions are complied with, and standard test pieces are used. The test weld can be used to approve a welding procedure an

26、d 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 requirements, ranges of approval, test conditions, acceptance requirements and certification for the approval testing of welder

27、 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 basis for the mutual recognition by examining bodies for approval relating to welders competence in the various fields of applic

28、ation. 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 the approval test the welder should be required to show adequate practical experience and job knowledge (test non mandatory) of

29、 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 the welders approval testing is required by the purchaser, by inspection authorities or by other organizations. The welding pro

30、cesses 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 and automatic processes (see 5.2). This standard covers approval testing of welders for work on semi-finished and finished produc

31、ts made from wrought, forged or cast material types listed in 5.4. The certificate of approval testing is issued under the soie responsibility of the examiner or examining body. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publicatio

32、ns. 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 revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. Fo

33、r undated references the latest edition of the publication referred to applies. EN 287-1 1992 Approval testing of welders - Fusion welding - Part 1: Steels Specification and approval of welding procedures for metallic materials - Part 2: Welding procedure specification for arc welding Non destructiv

34、e testing - Penetrant testing - Part 1: General principles Destructive test on welds in metallic materials - Bend tests Non-destructive examination of fusion welds - Visual examination Non-destructive examination of welds - Penetrant testing of welds - Acceptance levels Destructive tests on welds in

35、 metallic materials - Fracture test EN 288-2 : 1992 EN 571-1 EN 910 EN 970 EN 1289 EN 1320 Page 5 EN IS0 9606-4 : 1999 EN 1321 Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds Non-destructive examination of welds - Radiographic examination of welded

36、 joints Welding, brazing, soldering and braze welding of metals - Nomenclature of processes and reference numbers for symbolic representation on drawings (IS0 4063 : 1990) Arc-welded joints in steel - Guidance on quality levels for imperfections (IS0 5817 : 1992) Classification of imperfections in m

37、etallic fusion welds, with explanations (IC0 6520 : 1982) Welds - Working positions - Definitions of angles of slope and rotation (IS0 6947 : 1993) Welding - Guidelines for a grouping system of materials for welding purposes Welding, brazing and soldering processes - Vocabulaty EN 1435 EN 24063 : 19

38、92 EN 2581 7 : 1992 EN 26520 : 1991 EN IS0 6947 : 1997 CR 12187 IS0 857 : 1990 3 Definitions For the purposes of this standard the definitions given in EN 287-1 apply. 4 Symbols and abbreviations 4.1 General Where the full wording is not used, the following symbols and abbreviations shall be used wh

39、en completing the test certificate (see Annex B of EN 287-1 : 1992). 4.2 Test piece a BW D FW P t T 2 nominal throat thickness ; butt weld ; outside diameter of pipe ; fillet weld ; plate ; plate or pipe wall thickness ; leg length of fillet weld. pipe ; 4.3 Consumables nm no filler metal ; wm with

40、filler metal. 4.4 Miscellaneous bs gg mb nb welding without backing ; ng ss single-side welding. welding from both sides : back gouging or back grinding of welds ; welding with backing material ; no back gouging or no back grinding ; 5 Essential variables for approval testing 5.1 General The criteri

41、a specified 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. P

42、age 6 EN IS0 9606-4 : 1999 5.2 Welding processes Welding processes are defined in IS0 857 and reference numbers of welding processes for symbolic representa- tion are listed in EN 24063. This standard covers the following welding processes: 11 1 131 135 136 141 15 plasma arc welding; other fusion we

43、lding processes by agreement. metal-arc welding with covered electrode; metal-arc inert gas welding (MIG welding); metal-arc active gas welding (MAG welding); flux-cored wire metal-arc welding with active gas shield; tungsten inert gas arc welding (TIG welding): 5.3 Joint types (butt and fillet weld

44、s) Test pieces shall be produced for butt weld (BW) and fillet weld (FW) in plates (P) or pipes) (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 weld

45、ing characteristics 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

46、 Nickel casting alloys 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 2 45 %, Cu 10

47、 Yo 5.4.2.4 Group W 43: Nickel-chromium alloys (Ni/Fe/Cr/Mo) Ni 2 40 % 5.4.2.5 Group W 44: Nickel-molybdenum alloys (Ni/Mo) Ni 2 45 Yo, Mo 5 30 Oh 5.4.2.6 Group W 45: Nickel-iron-chromium alloys (Ni/Fe/Cr) Ni 2 45 YO 5.4.2.7 Group W 46: Nickel-chromium-cobalt alloys (Ni/Cr/Co) Ni 2 45 Yo, Co 2 10 YO

48、 5.4.2.8 Group W 47: Nickel-iron-chromium-copper alloys (Ni/Fe/Cr/Cu) Ni 2 45 % 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 shield

49、ing gas suitable for that material group, this test will confer approval on the welder to use any other similar consumables (filler metal or shielding gas) for the same material group. 5.6 Dimensions The approval test should be based on the thickness of the material (.e. plate thickness or wall thickness of pipe) and pipe diameters which the welder will use in production. A test is listed for each of the three ranges of plate thickness and pipe wall thickness or pipe diameter as specified in tables 1 and 2. ) The word “pipe“, alone or in combination, is used to mean “p