1、BSI Standards PublicationBS EN ISO 17634:2015Welding consumables Tubular cored electrodes forgas shielded metal arc weldingof creep-resisting steels ClassificationBS EN ISO 17634:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO17634:2015. It supersedes B
2、S EN ISO 17634:2006 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee WEE/39, Welding consumables.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessa
3、ryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 83852 1ICS 25.160.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was pub
4、lished under the authority of theStandards Policy and Strategy Committee on 31 August 2015.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17634 August 2015 ICS 25.160.20 Supersedes EN ISO 17634:2006English Version Welding consumables - T
5、ubular cored electrodes for gas shielded metal arc welding of creep-resisting steels - Classification (ISO 17634:2015) Produits consommables pour le soudage - Fils-lectrodes fourrs pour le soudage larc avec gaz de protection des aciers rsistant au fluage - Classification (ISO 17634:2015)Schweizustze
6、 - Flldrahtelektroden zum Metall-Schutzgasschweien von warmfesten Sthlen - Einteilung (ISO 17634:2015) This European Standard was approved by CEN on 11 August 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stand
7、ard the status of a 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
8、, 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bul
9、garia, Croatia, Cyprus, 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, T
10、urkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
11、. Ref. No. EN ISO 17634:2015 EBS EN ISO 17634:2015EN ISO 17634:2015 (E) 3 European foreword This document (EN ISO 17634:2015) 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 secr
12、etariat of which is 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 February 2016, and conflicting national standards shall be withdrawn at the latest by February 2016. Attention is d
13、rawn 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 responsible for identifying any or all such patent rights. This document supersedes EN ISO 17634:2006. According to the CEN-CENELEC Internal Regulations, the n
14、ational standards organizations 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,
15、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17634:2015 has been approved by CEN as EN ISO 17634:2015 without any modification. BS EN ISO 17634:2015ISO 1
16、7634:2015(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Classification 24 Symbols and requirements 34.1 Symbol for the product/process 34.2 Symbol for the chemical composition of all-weld metal . 34.3 Symbol for the mechanical properties of all-weld metal 34.4 Symbol for type of el
17、ectrode core or the usability characteristics of the electrodes 104.5 Symbol for shielding gas 104.6 Symbol for welding position 114.7 Symbol for hydrogen content of deposited metal 115 Mechanical tests .115.1 Tensile and impact tests . 115.2 Preheating and interpass temperatures 125.3 Pass sequence
18、 . 126 Chemical analysis 127 Rounding procedure 128 Fillet weld test 139 Retests 1410 Technical delivery conditions 1411 Example of designation 14Annex A (informative) Classification systems 17Annex B (informative) Description of composition designations of electrode in the classification system bas
19、ed upon tensile strength and chemical composition 19Annex C (informative) Description of types of electrode core in the classification system based upon chemical composition .20Annex D (informative) Description of types of usability characteristics in the classification system based upon tensile str
20、ength and chemical composition .21Annex E (informative) Notes on hydrogen content .22Bibliography .23 ISO 2015 All rights reserved iiiContents PageBS EN ISO 17634:2015ISO 17634:2015(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bod
21、ies (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 organization
22、s, 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 further
23、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/directives).
24、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 Introdu
25、ction 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 conf
26、ormity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 44, Welding and allied processes, Subcommittee SC 3, Welding
27、consumables.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 national standards body. A complete listing of these bodies can be found at www.iso.org.This second edition cancels and replaces the first e
28、dition (ISO 17634:2004), which has been technically revised.iv ISO 2015 All rights reservedBS EN ISO 17634:2015ISO 17634:2015(E)IntroductionThis International Standard provides a classification system for tubular cored electrodes in terms of chemical composition of the all-weld metal, type of electr
29、ode core, type of shielding gas, and welding position or in terms of the tensile properties, chemical composition of the all-weld metal, usability characteristics of the electrodes, shielding gas, and welding position. The ratio of proof to tensile strength of weld metal is generally higher than tha
30、t of parent metal. Matching weld metal proof strength to parent metal proof strength will not necessarily ensure that the weld metal tensile strength matches that of the parent metal. Where the application requires matching tensile strength, therefore, selection of consumables is made by reference t
31、o column 4 of Table 2.Of note is that the mechanical properties of all-weld metal test specimens used to classify the tubular cored electrodes will vary from those obtained in production joints because of differences in welding procedure such as electrode size, width of weave, welding position, and
32、parent metal composition.The classification according to system A is mainly based on EN 12071:1999. The classification according to system B is mainly based upon standards used around the Pacific Rim. ISO 2015 All rights reserved vBS EN ISO 17634:2015BS EN ISO 17634:2015Welding consumables Tubular c
33、ored electrodes for gas shielded metal arc welding of creep-resisting steels Classification1 ScopeThis International Standard specifies requirements for classification of tubular cored electrodes used in the post-weld heat-treated condition for gas shielded metal arc welding of creep-resisting and l
34、ow alloy elevated temperature steels. One tubular cored electrode can be tested and classified with different shielding gases.This International Standard is a combined specification providing for classification utilizing a system based upon the chemical composition of all-weld metal or utilizing a s
35、ystem based upon the tensile strength and the chemical composition of all-weld metal.1) Paragraphs and tables which carry the suffix letter “A” are applicable only to tubular cored electrodes classified to the system based upon chemical composition with requirements for the yield strength and the av
36、erage impact energy of 47 J of all-weld metal in accordance with this International Standard.2) Paragraphs and tables which carry the suffix letter “B” are applicable only to tubular cored electrodes classified to the system based upon the tensile strength and chemical composition of all-weld metal
37、in accordance with this International Standard.3) Paragraphs and tables which have neither the suffix letter “A” nor the suffix letter “B” are applicable to all tubular cored electrodes classified in accordance with this International Standard.It is recognized that the operating characteristics of t
38、ubular cored electrodes can be modified by the use of pulsed current, but for the purposes of this International Standard, pulsed current is not used for determining the electrode classification.2 Normative referencesThe following referenced documents, in whole or in part, are normatively referenced
39、 in this document and are indispensable for its application. 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 conditions for filler materials
40、and fluxes Type of product, dimensions, tolerances and markingsISO 3690, Welding and allied processes Determination of hydrogen content in arc weld metalISO 6947, Welding and allied processes Welding positionsISO 14175, Welding consumables Gases and gas mixtures for fusion welding and allied process
41、esISO 14344, Welding consumables Procurement of filler materials and fluxesISO 15792-1:2000/Amd 1:2011, Welding Consumables Test methods Part 1: Test methods for all-weld metal test specimens in steel, nickel and nickel alloysISO 15792-3, Welding consumables Test methods Part 3: Classification testi
42、ng of positional capacity and root penetration of welding consumables in a fillet weldISO 80000-1:2009, Quantities and units Part 1: GeneralINTERNATIONAL STANDARD ISO 17634:2015(E) ISO 2015 All rights reserved 1BS EN ISO 17634:2015ISO 17634:2015(E)3 ClassificationClassification designations are base
43、d upon two approaches to indicate the chemical composition, the tensile properties, and the impact properties of the all-weld metal obtained with a given electrode. The two designation approaches include additional designators for some other classification requirements, but not all as will be clear
44、from the following sections. 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.The classification includes all-weld metal properties obtained with a tubular cored electrode and appropriate shieldi
45、ng gas combination as given below. With the exception of the symbol for welding position which is based on ISO 15792-3, the classification is based on the tubular cored electrode size 1,2 mm or if this is not manufactured, the next larger diameter manufactured.3.1A Classification by chemical composi
46、tion 3.1B Classification by tensile strength and chemical compositionThe classification is divided into six parts: The classification is divided into seven parts:1) The first part (T) indicates a tubular cored electrode.1) The first part (T) indicates a tubular cored electrode.2) The second part giv
47、es a symbol indicating the chemical composition of all-weld metal (see Table 1).2) The second part gives a symbol indicating the strength and elongation of all-weld metal in the post-weld heat-treated condition (see Table 2).3) The third part gives a symbol indicating the type of electrode core (see
48、 Table 3A).3) The third part gives a symbol indicating the usability characteristics of the electrode. (see Table 3B);4) The fourth part gives a symbol indicating the shielding gas (see 4.5).4) The fourth part gives a symbol indicating the welding position (see Table 4B).5) The fifth part gives a sy
49、mbol indicating the welding position (see Table 4A).5) The fifth part gives a symbol indicating the shielding gas (see 4.5).6) The sixth part gives a symbol indicating the hydrogen content of deposited metal (see Table 5).6) The sixth part gives a symbol indicating the chemical composition of all-weld metal (see Table 1);7) The seventh part gives a symbol indicating the hydrogen content of deposited metal (see Table 5).In both systems, the electrode classification shall include all compulsory sections and may includ
