BS EN ISO 14341-2011 Welding consumables Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels Classification《焊料 非合金钢和细粒钢的金属气体保护电弧.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 14341:2011Welding consumables Wireelectrodes and weld depositsfor gas shielded metal arcwelding of non alloy and finegrain steels Classification(ISO 14341:2010)BS EN IS

2、O 14341:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO14341:2011. It is identical to ISO 14341:2010. It supersedes BS EN ISO14341:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/39, Welding consum

3、ables.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72098 7ICS 25.160.20Compliance with

4、a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2011.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1434

5、1 January 2011 ICS 25.160.20 Supersedes EN ISO 14341:2008English Version Welding consumables - Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels - Classification (ISO 14341:2010) Produits consommables pour le soudage - Fils-lectrodes et mtaux dap

6、port dposs en soudage larc sous protection gazeuse des aciers non allis et grains fins - Classification (ISO 14341:2010) Schweizustze - Drahtelektroden und Schweigut zum Metall-Schutzgasschweien von unlegierten Sthlen und Feinkornsthlen - Einteilung (ISO 14341:2010) This European Standard was approv

7、ed by CEN on 25 December 2010. 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 alteration. Up-to-date lists and bibliographical references concerning such national

8、 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 translation under the responsibility of a CEN member into its own language

9、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, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

10、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2

11、011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14341:2011: EBS EN ISO 14341:2011EN ISO 14341:2011 (E) 3 Foreword The text of ISO 14341:2010 has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes”

12、of the International Organization for Standardization (ISO) and has been taken over as EN ISO 14341:2011 by Technical Committee CEN/TC 121 “Welding” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical

13、 text or by endorsement, at the latest by July 2011, and conflicting national standards shall be withdrawn at the latest by July 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsibl

14、e for identifying any or all such patent rights. This document supersedes EN ISO 14341:2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus,

15、Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 14341:

16、2010 has been approved by CEN as a EN ISO 14341:2011 without any modification. BS EN ISO 14341:2011ISO 14341:2010(E) ISO 2010 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Classification .2 4 Symbols and requirements 2 4.1 Symbol for product/proce

17、ss 2 4.2 Symbol for strength and elongation of all-weld metal 3 4.3 Symbol for impact properties of all-weld metal .3 4.4 Symbol for shielding gas4 4.5 Symbol for chemical composition of wire electrodes.4 5 Mechanical tests8 5.1 Preheating and interpass temperatures8 5.2 Welding conditions and pass

18、sequence.9 5.3 Post-weld heat-treated (PWHT) condition.9 6 Chemical analysis .10 7 Rounding procedure .10 8 Retests10 9 Technical delivery conditions 10 10 Examples of designation 11 BS EN ISO 14341:2011ISO 14341:2010(E) iv ISO 2010 All rights reservedForeword ISO (the International Organization for

19、 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 a technical committee has been established has the

20、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 matters of electrotechnical standardization. Internatio

21、nal Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication a

22、s an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 such patent rights. I

23、SO 14341 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee SC 3, Welding consumables. This second edition cancels and replaces the first edition (ISO 14341:2002). Requests for official interpretation of any aspect of this International Standard should be direc

24、ted to the Secretariat of ISO/TC 44/SC 3 via your national standards body. A complete listing of these bodies can be found at www.iso.org. BS EN ISO 14341:2011ISO 14341:2010(E) ISO 2010 All rights reserved vIntroduction This International Standard recognizes that there are two somewhat different app

25、roaches in the global market to classifying a given wire electrode, and allows for either or both to be used, to suit a particular market need. Application of either type of classification designation (or both where suitable) identifies a product as classified in accordance with this International S

26、tandard. This International Standard provides a classification in order to designate wire electrodes in terms of their chemical composition and, where required, in terms of the yield strength, tensile strength and elongation of the all-weld metal. The ratio of yield strength to tensile strength of w

27、eld metal is generally higher than that of parent metal. Users should note that matching weld metal yield strength to parent metal yield strength does not necessarily ensure that the weld metal tensile strength matches that of the parent material. Therefore, where the application requires matching t

28、ensile strength, selection of the consumable should be made by reference to column 3 of Table 1A or 1B. It should be noted that the mechanical properties of all-weld metal test specimens used to classify the electrodes vary from those obtained in production joints because of differences in welding p

29、rocedures such as electrode size, width of weave, welding position and material composition. BS EN ISO 14341:2011BS EN ISO 14341:2011INTERNATIONAL STANDARD ISO 14341:2010(E) ISO 2010 All rights reserved 1Welding consumables Wire electrodes and weld deposits for gas shielded metal arc welding of non

30、alloy and fine grain steels Classification 1 Scope This International Standard specifies requirements for classification of wire electrodes and weld deposits in the as-welded condition and in the post-weld heat-treated condition for gas shielded metal arc welding of non alloy and fine grain steels w

31、ith a minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One wire electrode can be tested and classified with different shielding gases. This International Standard constitutes a combined specification providing classification utilizing a system based upon the yi

32、eld strength and the average impact energy of 47 J of all-weld metal, or utilizing a system based upon the tensile strength and the average impact energy of 27 J of all-weld metal. a) Clauses and tables which carry the suffix letter “A” are applicable only to wire electrodes classified to the system

33、 based upon the yield strength and the average impact energy of 47 J of all-weld metal in accordance with this International Standard. b) Clauses and tables which carry the suffix letter “B” are applicable only to wire electrodes classified to the system based upon the tensile strength and the avera

34、ge impact energy of 27 J of all-weld metal in accordance with this International Standard. c) Clauses and tables which have neither the suffix letter “A” nor the suffix letter “B” are applicable to all wire electrodes classified in accordance with this International Standard. 2 Normative references

35、The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 544, Welding consumables Technical delivery c

36、onditions for filler materials and fluxes Type of product, dimensions, tolerances and markings ISO 13916, Welding Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperature ISO 14175:2008, Welding consumables Gases and gas mixtures for fusion wel

37、ding and allied processes ISO 14344, Welding consumables Procurement of filler materials and fluxes ISO 15792-1:2000, Welding consumables Test methods Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloys ISO 80000-1:2009, Quantities and units Part 1: General BS E

38、N ISO 14341:2011ISO 14341:2010(E) 2 ISO 2010 All rights reserved3 Classification Classification designations are based upon two approaches to indicate the tensile properties and the impact properties of the all-weld metal obtained with a given electrode. The two designation approaches include additi

39、onal designators for some other classification requirements, but not all, as will be clear from the following subclauses. In most cases, a given commercial product can be classified in both systems. Then either or both classification designations can be used for the product. A wire electrode shall b

40、e classified according to its chemical composition as in Table 3A or Table 3B. A weld deposit shall be classified with additional symbols according to the mechanical properties of its all-weld metal, using a shielding gas from a specific group. 3A Classification by yield strength and 47 J impact ene

41、rgy The classification is divided into five parts: 1) the first part gives a symbol indicating theproduct/process to be identified; 2) the second part gives a symbol indicating thestrength and elongation of the all-weld metal(see Table 1A); 3) the third part gives a symbol indicating theimpact prope

42、rties of the all-weld metal (seeTable 2); 4) the fourth part gives a symbol indicating theshielding gas used (see 4.4); 5) the fifth part gives a symbol indicating thechemical composition of the wire electrode used(see Table 3A). 3B Classification by tensile strength and 27 J impact energy The class

43、ification is divided into five parts: 1) the first part gives a symbol indicating the product/process to be identified; 2) the second part gives a symbol indicating the strength and elongation of the all-weld metal in either the as-welded or post-weld heat-treated condition (see Table 1B); 3) the th

44、ird part gives a symbol indicating the impact properties of the all-weld metal in the same condition as specified for the tensile strength (see Table 2). The letter U after this symbol indicates that the deposit meets an average optional requirement of 47 J at the designated Charpy test temperature;

45、 4) the fourth part gives a symbol indicating the shielding gas used (see 4.4); 5) the fifth part gives a symbol indicating the chemical composition of the wire electrode used (see Table 3B). 4 Symbols and requirements 4.1 Symbol for product/process The symbol for a weld deposit produced by gas shie

46、lded metal arc welding shall be the letter G placed at the beginning of the designation. The symbol for a wire electrode for use in gas shielded metal arc welding shall be the letter G placed at the beginning of the wire electrode designation. BS EN ISO 14341:2011ISO 14341:2010(E) ISO 2010 All right

47、s reserved 34.2 Symbol for strength and elongation of all-weld metal 4.2A Classification by yield strength and 47 J impact energy The symbols in Table 1A indicate the yield strength,tensile strength, and elongation of the all-weld metal in the as-welded condition determined inaccordance with Clause

48、5. 4.2B Classification by tensile strength and 27 J impact energy The symbols in Table 1B indicate the yield strength, tensile strength, and elongation of the all-weld metal in the as-welded condition or in the post-weld heat-treated condition determined in accordance with Clause 5. Table 1A Symbols

49、 for strength and elongation of all-weld metal Minimum yield strength aTensile strength Minimum elongation bSymbol MPa MPa % 35 355 440 to 570 22 38 380 470 to 600 20 42 420 500 to 640 20 46 460 530 to 680 20 50 500 560 to 720 18 aFor yield strength, the lower yield strength (ReL) is used when yielding occurs, otherwise the 0,2 % proof strength (Rp0,2) is used. bGauge length is equal to five times the test specimen diameter. Table 1B Symbols for strength and elongation of all-weld metal Minimum yield strength bTens