1、BS EN ISO 14171:2016Welding consumables Solidwire electrodes, tubular coredelectrodes and electrode/fluxcombinations for submergedarc welding of non alloyand fine grain steels Classification (ISO 14171:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 14
2、171:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO14171:2016. It supersedes BS EN ISO 14171:2010 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/39, Welding consumables.A list of organizations represen
3、ted 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. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 9010
4、4 1ICS 25.160.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2016.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPEN
5、NE EUROPISCHE NORM EN ISO 14171 July 2016 ICS 25.160.20 Supersedes EN ISO 14171:2010English Version Welding consumables - Solid wire electrodes, tubular cored electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels - Classification (ISO 14171:2016) Pro
6、duits consommables pour le soudage - Fils-lectrodes pleins, fils-lectrodes fourrs et couples fils-flux pour le soudage larc sous flux des aciers non allis et grains fins - Classification (ISO 14171:2016)Schweizustze - Massivdrahtelektroden, Flldrahtelektroden und Draht-Pulver-Kombinationen zum Unter
7、pulverschweien von unlegierten Sthlen und Feinkornsthlen - Einteilung (ISO 14171:2016) This European Standard was approved by CEN on 5 May 2016. 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
8、national standard without any alteration. Up-to-date lists and bibliographical references concerning such national 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
9、 version in any other language made by translation under the responsibility of a CEN member into its own language 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, Cypr
10、us, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kin
11、gdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 14
12、171:2016 EBS EN ISO 14171:2016EN ISO 14171:2016 (E) 3 European foreword This document (EN ISO 14171:2016) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is
13、held by DIN. 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 January 2017, and conflicting national standards shall be withdrawn at the latest by January 2017. Attention is drawn to the possibilit
14、y that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 14171:2010. According to the CEN-CENELEC Internal Regulations, the national standards orga
15、nizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg,
16、 Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 14171:2016 has been approved by CEN as EN ISO 14171:2016 without any modification. BS EN ISO 14171:2016ISO 14171:2016(E)Foreword i
17、vIntroduction v1 Scope . 12 Normative references 13 Classification 24 Symbols and requirements 34.1 Symbol for the process . 34.2 Symbol for tensile properties . 34.2.1 Multi-run technique 34.2.2 Two-run technique. 44.3 Symbol for the impact properties of all-weld metal or two-run welded joint . 54.
18、4 Symbol for type of welding flux 54.5 Symbol for the chemical composition . 54.5.1 Solid wire electrodes 54.5.2 Tubular cored electrode/flux combinations 64.6 Symbol for hydrogen content of deposited metal 155 Mechanical tests .155.1 Multi-run technique . 155.2 Two-run technique . 176 Chemical anal
19、ysis 177 Rounding procedure 178 Retest .189 Technical delivery conditions 1810 Examples of designation 18 ISO 2016 All rights reserved iiiContents PageBS EN ISO 14171:2016ISO 14171:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards
20、 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 right to be represented on that committee. International organiza
21、tions, 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.The procedures used to develop this document and those intended for its furt
22、her maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directiv
23、es).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. Details of any patent rights identified during the development of the document will be in the Int
24、roduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to
25、conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.htmlThe committee responsible for this document is ISO/TC 44, Welding and allied processes, Sub
26、committee SC 3, Welding consumables.This third edition cancels and replaces the second edition (ISO 14171:2010), which has been technically revised.Requests for official interpretations of any aspect of this International Standard should be directed to the Secretariat of ISO/TC 44/SC 3 via your nati
27、onal standards body. A complete listing of these bodies can be found at www.iso.org.iv ISO 2016 All rights reservedBS EN ISO 14171:2016ISO 14171:2016(E)IntroductionThis International Standard recognizes that there are two somewhat different approaches in the global market to classifying a given elec
28、trode/flux combination, and allows for either or both to be used, to suit a particular market need. Application of either type of classification designation (or of both where suitable) identifies a product as classified in accordance with this International Standard.This International Standard provi
29、des a classification system for the designation of solid wire electrodes in terms of their chemical composition, tubular cored electrodes in terms of the deposit composition obtained with a particular submerged arc flux and, where required, electrode/flux combinations in terms of the yield strength,
30、 tensile strength and elongation of the all-weld metal deposit. The ratio of yield to tensile strength of weld metal is generally higher than that of parent material. Users are to note that matching weld metal yield strength to parent material yield strength does not necessarily ensure that the weld
31、 metal tensile strength matches that of the parent material. Thus, where the application of the material requires matching tensile strengths, selection of the consumable is intended to be made by reference to column 3 of Table 1A or 1B, as appropriate.Although combinations of electrodes and fluxes s
32、upplied by individual companies may have the same classification, the individual wire electrodes and fluxes from different companies are not interchangeable unless verified in accordance with this International Standard.The mechanical properties of all-weld metal test specimens used to classify the
33、electrode/flux combinations vary from those obtained in production joints because of differences in welding procedures such as electrode size and parent material composition. ISO 2016 All rights reserved vBS EN ISO 14171:2016BS EN ISO 14171:2016Welding consumables Solid wire electrodes, tubular core
34、d electrodes and electrode/flux combinations for submerged arc welding of non alloy and fine grain steels Classification1 ScopeThis International Standard specifies the requirements for the classification of electrode/flux combinations and weld metal in the as-welded condition and in the post-weld h
35、eat-treated condition for submerged arc welding of non-alloy and fine grain steels with minimum yield strength of up to 500 MPa or a minimum tensile strength of up to 570 MPa. One flux can be classified with different solid wire electrodes and tubular cored electrodes. The solid wire electrode is al
36、so classified separately based on chemical composition.This International Standard is a combined specification providing for classification utilizing a system based upon the yield strength and the average impact energy for weld metal of 47 J, or utilizing a system based upon the tensile strength and
37、 the average impact energy for weld metal of 27 J.a) Paragraphs and tables which carry the suffix letter “A” are applicable only to electrode/flux combinations and wire electrodes classified using the system based upon the yield strength and the average impact energy for weld metal of 47 J, in accor
38、dance with this International Standard.b) Clauses and tables which carry the suffix letter “B” are applicable only to electrode/flux combinations and wire electrodes classified using the system based upon the tensile strength and the average impact energy for weld metal of 27 J, in accordance with t
39、his International Standard.c) Clauses and tables which do not have either the suffix letter “A” or the suffix letter “B” are applicable to all electrode/flux combinations and wire electrodes classified in accordance with this International Standard.Fluxes for the single-run and two-run techniques ar
40、e classified on the basis of the two-run technique.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest editi
41、on of the referenced document (including any amendments) applies.ISO 544, Welding consumables Technical delivery conditions for filler materials and fluxes Type of product, dimensions, tolerances and markingsISO 3690, Welding and allied processes Determination of hydrogen content in arc weld metalIS
42、O 6847, Welding consumables Deposition of a weld metal pad for chemical analysisISO 13916, Welding Guidance on the measurement of preheating temperature, interpass temperature and preheat maintenance temperatureISO 14174, Welding consumables Fluxes for submerged arc welding and electroslag welding C
43、lassificationISO 14344, Welding consumables Procurement of filler materials and fluxesINTERNATIONAL STANDARD ISO 14171:2016(E) ISO 2016 All rights reserved 1BS EN ISO 14171:2016ISO 14171:2016(E)ISO 15792-1:2000, Welding consumables Test methods Part 1: Test methods for all-weld metal test specimens
44、in steel, nickel and nickel alloys. Amended by ISO 15792-1:2000/Amd 1:2011ISO 15792-2:2000, Welding consumables Test methods Part 2: Preparation of single-run and two-run technique test specimens in steelISO 80000-1:2009, Quantities and units Part 1: General. Corrected by ISO 80000-1:2009/Cor 1:2011
45、3 ClassificationClassification designations are based upon two approaches to indicate the tensile properties and the impact properties of the weld metal obtained with a given electrode/flux combination. The two designation approaches include additional symbols for some other classification requireme
46、nts, but not all, as is clear from the following clauses. In most cases, a given commercial product can be classified in accordance with both systems. Then, either or both classification designations can be used for the product.A solid wire electrode shall be classified in accordance with its chemic
47、al composition as given in Table 4A or 4B.An all-weld metal deposit from a tubular cored electrode shall be classified in accordance with the all-weld metal composition, as given in Table 5A or 5B, obtained with a particular flux.When the solid wire electrode or tubular cored electrode is classified
48、 in combination with a flux for submerged arc welding, the classification shall be prefixed with a symbol in accordance with Clause 4, as appropriate.The electrode/flux classification includes weld metal properties obtained with a manufacturers specific electrode/flux combination as given below. A w
49、ire electrode may be separately classified with the symbol for its chemical composition in Table 4A or 4B.3A Classification by yield strength and 47 J impact energy3B Classification by tensile strength and 27 J impact energyThe classification is divided into five mandatory parts and an optional sixth part.The classification is divided into five mandatory parts and an optional sixth part.1) The first part gives a symbol indicating the process to be identified.1) The first part gives a symbol indicating the process t
