1、BRITISH STANDARD Approval testing of welders - Fusion welding - Part 4: Nickel and nickel alloys The European Standard EN IS0 96064 1999 has the status of a British Standard ICs 26.160.10 3s EN IS0 360641999 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGW LAW BS EN IS0 9606-4:1999
2、direction of the Engineering AmdNo. Date Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 1999 O BSI O51999 National foreword Text affected This British Standard is the English language version of EN IS0 96oM1999. It is identical with IS0
3、 !%O64 1998. The UK participation in its preparation was entrusted to Technid Committee WEEM, Approval testing of welding procedures and welders, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internationallEuropean committee any enquiries on th
4、e interpretation, or proposals for change, and keep the UK interests informed; - monitor related intedona.l 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 t
5、o the fact that CEN and CENELEC standars normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these intemationai or European publications may be found in the BSI Standards Cataio
6、gue under the section entitied “hternationai 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 cor
7、rect application. 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, the EN IS0 titie page, pages 2 to 23 and a back cover. ISBN O 580 32296 3 I I EUROPEAN STANDARD NORME EUROPEN
8、NE EURWJSCHE 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) Epreuve de qualification des soudeurs - Soudage par fusion - Partie 4: Nickel et ses alliages (IS0 9606-4:1999) Pang von Schweie
9、rn - Schmelzschweien - Teil 4: Nickel und Nickellegieningm (IS0 9606-4:1999) This European Standard was approved by CEN on 20 November 1998. CEN members are bound io comply with the CENICENELEC Intemal Regulations which stipulate the conditions for giving this European Standard the status of a natio
10、nal standard wiaiaut any alteration. Up-to-date lists and MMiographical 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 o
11、ther language made by translation under the responsibil 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, Finland, France, Germany, Gr
12、eece, Iceland. Ireland. Italy, Luxembourg, Netherlands, Nomay, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITIEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMITE EUROPEEN DE NORMALISATION Central Secretariat: CU, de Stassart, 36 8-1050 Brussels Q 1999 CEN All right
13、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 9606-4:1999 E STD.BSI BS EN IS0 Sbb-4-ENGL 1799 ltb24bb 07753b7 BTT D Page 2 EN IS0 9606-4:1999 Contents Page Fo . 3 Introduction . 4 1 scope 4 2 Nomativeraferenco8 4 3 CWlnitions 5 4 Symbdrin
14、dabbreviaions 5 4.1 General . 5 4.2 Test piece . 5 4.3 ConsumaMes . 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 Essenthl variables for approval testlng 5 General . 5 Welding prooesses . 6 Joint types (butt and fillet welds) . 6 Materialgroups . 6 ConsumaMe
15、s . 6 Dimensions 7 Number of test pieces 7 Weldingpositions 7 Ran- of approval for the welder . 7 General . 7 Weidingprocess . 7 Jointtypes . 8 Materialgroups . 8 Consumablec . 9 Dimensions 9 Welding positions 9 7 Examination and estlng 11 7.1 Supervision 11 7.2 Shapes and dimensions of test pieces
16、. 11 7.3 Welding conditions . 12 7.4 Test methods . 13 7.5 Test piece and specimens 13 8 Acceptance requirements for test pieces . 18 9 Retests 18 10 Periodofvalidity . 18 10.1 Initialapproval 18 10.2 Prolongation 19 11 mcate . 19 12 dgnaon . 19 Annex A (informative) Job knowledge 21 Annex ZA (infor
17、mative) Bibliography . 23 Annex ZB (informative) Clauses of this European Standard addressing essential requirements or other provisions of EUDirectives 24 STD-BSI BS EN IS0 SbOb-LI-ENGL 1999 Lb24bb9 07753bA 73b = Page 3 EN IS0 9606-4:199Q Foreword The text of EN IC0 9606-4:1999 has been prepared by
18、 Technical Committee CEWC 121 Welding?, the secretariat of which is held by DS, in collaboration with Technical Committee ISOTC 44 Welding and allied 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 b
19、y 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 and the European Free Trade Association, and supports essential requirements of EU Directive(s). For r
20、elationship with EU Directive(s), see informative Annex ZB, which is an integrai pari of this standard. According to the CEWCENELEC Intemal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, De
21、nmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. processes?. STD.BS1 BS EN IS0 9bOb-q-ENGL 1999 Lb2Ybb 0775369 b72 Page 4 EN IS0 9606-4:1999 . Introduction This standard covers aie principl
22、es to be obsetved in the approval testing of welder performance for the fusion welding of nicket and nick81 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 facto
23、rs 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 and a welder provided that all the
24、relevant requirements, e.g. test piece dimensions, are satisfied (see relevant pari of EN 288-2). This 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. T
25、his 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 application. Tests will be camed out in accorda
26、nce with this standard unless more severe tests are specified by the relevant application standard when these are appli 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 r
27、equirements 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 processes referred to in this standard include th
28、ose 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 products made from wrought, forged or cast material
29、ypes listed in 5.4. The certificate of approval testing is issued under the sole responsibility of the examiner or examining body. 1 scope 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These nomtive references are cited
30、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. For undated references the latest edition o
31、f Pn 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 destructive testing - Penetrant testing - Part 1:
32、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 metallic materials - Fracture test EN 2
33、88-2 : 1992 EN 571-1 EN 910 EN 970 EN 1289 EN 1320 Page 5 EN IS0 96064:1999 EN 1321 Destructive tests on welds in metallic materials - Macroscopic and microscopic examination of welds Non-destructive examination of welds - Radiographic examination of welded joints Welding, brazing, soldering and bra
34、ze 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 metallic fusion welds, with explanations (IS
35、0 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 - Vocabulary EN 1435 EN 24063 : 1992 EN 25817 : 1992 EN 26520 : 1991 EN IS0 6
36、947 : 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 when completing the test certificate (see Anne
37、x B of EN 287-1 : 1992). 4.2 lest piece a BW O RN P t T 2 nominal throat thickness ; butt weld ; outside diameter of pipe ; fillet weld ; plate ; plate or pipe wall thickness ; pipe ; leg length of fillet weld. 4.3 Consumables nm no filler metal ; wm with filler metal. 4.4 Miscellaneous bs welding f
38、rom both sides ; gg back gouging or back grinding of welds ; mb welding with backing material ; nb welding without backing ; ng no back gouging or no back grinding ; ss single-side welding. 5 Essential variables for approval testing 5.1 General The criteria specified in this clause shall be examined
39、 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. STD.BSI BS EN IS0 Sbb-q-ENGL 1999 3b2LibbS 07
40、75373 220 9 Page 6 EN IS0 960641999 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
41、fusion welding 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 fi
42、llet welds) 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 Genenil In order to minimize unnecessary multiplication of technically identical tests, nickel with similar metallurgical
43、 and welding 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.
44、1 General Nickel casting alloys are included in the following groups but the filler metal shall be compatible with the filler metal used for the wrwght 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 145 %
45、, Cu 10 O/O 5.4.2.4 Group W 43: Nickel-chromium alloys (Ne/Cr/Mo) Ni 2 40 % 5.4.2.5 Group W 44: Nickel-molybdenum alloys (NMo) Ni L 45 %, Mo I 30 %O 5.4.2.6 Group W 45: Nickel-ironchromium alloys (Ni/Fe/Cr) Ni 2 45 YO 5.4.2.7 Group W 46: Nickel-chromium-cobalt alloys (NilCrlCo) Ni 245 TO, Co 1 10 Oh
46、 5.4.2.8 Group W 47: Nickel-iron-chromium-copper alloys (NilFelCrlCu) Ni 2 45 Oh 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 camed out using a filler metal and shieldi
47、ng 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 thick
48、ness 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 “pipe“, %be“ or “hollow secti
49、on“. STD.BS1 BS EN IS0 Sbb-Y-ENGL 1777 Lb24bb9 0775372 Lb7 Test piece thickness t mm tl3 3 12 Page 7 EN IS0 9606-4:1999 Range of approval 1 to2t 3 mm to 21 - 5mm It is not intended that thicknesses or diameters should be measured precisely but rather the general philosophy behind the values given in tables 1 and 2 should be applied. Table 2: Tes piece diameter and range of approval I I 3 Test piece Range approval diameter D DI 25 Dto 20 O 25 L 0,5 D (25 mm min.) 5.7 Number of test pleas Plate: One test piece per position. Pipe: A minimum weld length of 15
