1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Welding - Recommendations for welding of metallic materialsPart 8: Welding of cast ironsBS EN 1011-8:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1011-8 May 2018 ICS 25.160.10 Supersedes EN 1011-8:2004Englis
2、h Version Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons Soudage - Recommandations pour le soudage des matriaux mtalliques - Partie 8 : Soudage des fontesSchweien - Empfehlungen zum Schweien metallischer Werkstoffe - Teil 8: Schweien von Gusseisen This Eu
3、ropean Standard was approved by CEN on 22 January 2018. 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
4、 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 version in any other language made by translation under the responsibility of a CEN memb
5、er 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, Fra
6、nce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROP
7、ISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1011-8:2018 ENational forewordThis British Standard is the UK implementation of EN
8、1011-8:2018. It supersedes BS EN 1011-8:2004 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/36, Qualification of welding personnel and welding procedures.A list of organizations represented on this committee can be obtained on request to its secre
9、tary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93116 1ICS 25.160.10Compliance with a British Standard cannot
10、confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1011-8:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE
11、NORM EN 1011-8 May 2018 ICS 25.160.10 Supersedes EN 1011-8:2004English Version Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons Soudage - Recommandations pour le soudage des matriaux mtalliques - Partie 8 : Soudage des fontesSchweien - Empfehlungen zum Schw
12、eien metallischer Werkstoffe - Teil 8: Schweien von Gusseisen This European Standard was approved by CEN on 22 January 2018. 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 wi
13、thout 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 version in any othe
14、r 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, Cyprus, Czech Republic,
15、Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPE
16、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1011-8:2018 EB
17、S EN 1011-8:2018EN 1011-8:2018 (E) 2 Contents Page European foreword . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Abbreviations and symbols . 7 5 Provision for quality assurance requirements 7 6 Storage, handling and identification of parent metal 7 7 Fusion welding processes
18、 7 8 Welding consumables 8 8.1 General 8 8.2 Storage and handling . 8 9 Equipment . 8 9.1 General 8 9.2 Ancillary equipment 8 10 Fabrication 9 11 Weld preparation 9 11.1 Assembly for welding 9 11.2 Finishing welds and repair welds 10 12 Fabrication and inspection feasibility 10 13 Pre-heat temperatu
19、re and interpass temperature 10 14 Tack welds 10 15 Temporary attachments 10 16 Run-on plates and run-off plates 10 17 Arc strikes . 10 18 Weld run sequence 10 19 Heat input . 10 20 Welding procedure specification (WPS) 11 21 Traceability 11 22 Elimination of distortion or inherent stresses 11 23 In
20、spection and testing 11 24 Quality requirements . 11 25 Non-conformance and corrective actions . 11 26 Distortion 11 27 Post weld heat treatment 11 28 Surface cleaning and treatment 11 BS EN 1011-8:2018EN 1011-8:2018 (E) 3 Annex A (normative) Quality requirements 12 A.1 General . 12 A.2 Requirements
21、 for fusion welding . 12 Annex B (informative) Welding technology for cast iron castings 20 B.1 General . 20 B.2 Preparation for welding . 20 B.3 Backing bar . 20 B.4 Heat and temperature distribution . 20 Bibliography . 24 BS EN 1011-8:2018EN 1011-8:2018 (E) 4 European foreword This document (EN 10
22、11-8:2018) has been prepared by Technical Committee CEN/TC 190 “Foundry Technology”, 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 text or by endorsement, at the latest by November 2018 and conf
23、licting national standards shall be withdrawn at the latest by November 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersede
24、s EN 1011-8:2004. Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 13 “Welding of cast iron” to prepare the following revision of the standard: EN 1011-8:2004, Welding Recommendations for welding of metallic materials Part 8: Welding of cast irons. The following m
25、odifications were made: “Normative references”: revised; Clause 7: Process designations brought in accordance with EN ISO 4063 and reference number “143“ added; Subclause 8.2: Title modified in “Storage and handling”; Title of Subclause 10.1 removed; Subclauses 10.2 and 10.3 removed; Title of Subcla
26、use 11.1 changed in “Assembly for welding” and Subclause revised; Title of Clause 12 changed in “Fabrication and inspection feasibility”; Title of Clause 17 changed in “Arc strikes” and clause revised; Title of Clause 18 changed in “Weld run sequence”; List in Clause 20 extended; Title of Clause 22
27、changed in “Elimination of distortion or inherent stresses” and clause revised; Title of Clause 25 changed in “Non-conformance and corrective actions”; Clause 27 revised; Title of Clause 28 changed in “Surface cleaning and treatment” and clause revised; Annex A, Table A.2, No. 7, 3rdcolumn: standard
28、 text “Smooth edge rounding is not an undercut.” added as footnote c; BS EN 1011-8:2018EN 1011-8:2018 (E) 5 Annex A, A.2.2, below 2ndparagraph: heading inserted “Numbers and types of external imperfections with reference to Table A.2“ and the text “Types of imperfections 1, 2, 3, 4, 5 and 6 especial
29、ly for joint welding.“ added as NOTE in Table A.2; Table B.1, “Column: Method”, “row: Oxy acetylene welding (311)”, last cell, entry changed in “Welding rods OII EN 12536”; Bibliography revised. This is one of a series of European Standards for requirements for fusion welding of metallic materials w
30、ith the general title Welding Recommendations for welding of metallic materials. This series of European Standards is composed of the following parts: Part 1: General guidance for arc welding; Part 2: Arc welding of ferritic steels; Part 3: Arc welding of stainless steels; Part 4: Arc welding of alu
31、minium and aluminium alloys; Part 5: Welding of clad steel; Part 6: Laser beam welding; Part 7: Electron beam welding; Part 8: Welding of cast irons. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europea
32、n 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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia
33、, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1011-8:2018EN 1011-8:2018 (E) 6 1 Scope This document specifies the requirements for fusion welding of unalloyed and low-alloy cast iron castings produced in accordance with: EN 1561, Founding Grey cast irons; EN 1562, Foun
34、ding Malleable cast irons; EN 1563, Founding Spheroidal graphite cast irons. This document does not apply to the joint welding of cast iron castings to other materials. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitu
35、tes requirements 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. EN 1011-1:2009, Welding - Recommendations for welding of metallic materials - Part 1: General guidance fo
36、r arc welding EN ISO 4063, Welding and allied processes - Nomenclature of processes and reference numbers (ISO 4063) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 1: Arc welding (ISO 15609-1) EN ISO 15609-2, Spec
37、ification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 2: Gas welding (ISO 15609-2) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use i
38、n standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 production welding welding carried out during manufacturing before final delivery to the end user Note 1 to entry: It includes
39、 joint welding and finishing welding (see 3.2 and 3.3). 3.2 joint welding production welding used to assemble components together to obtain an integral unit 3.3 finishing welding production welding carried out in order to ensure the agreed quality of the casting BS EN 1011-8:2018EN 1011-8:2018 (E) 7
40、 3.4 repair welding welding carried out after final delivery of the casting to the end user 3.5 homogeneous filler metal filler metal which results in a deposited metal with the same type of microstructure as the parent metal 3.6 semi-homogeneous filler metal filler metal which results in a deposite
41、d metal with a steel-type microstructure 3.7 non-homogeneous filler metal filler metal which results in a deposited metal with a microstructure that differs from the parent metal 3.8 cast welding welding by pouring liquid metal into a specially prepared groove in a casting 3.9 liquid metal welding c
42、ast welding with additional use of a metal arc welding process 4 Abbreviations and symbols For the purposes of this document, the abbreviations and symbols given in EN 1011-1:2009 shall apply. 5 Provision for quality assurance requirements For the purposes of this document, the provisions for qualit
43、y assurance requirements given in Annex A shall apply. 6 Storage, handling and identification of parent metal Storage and handling shall be carried out in such a manner that the parent metal is not adversely affected. Provision shall be made for correct identification, e.g. grade and storage. 7 Fusi
44、on welding processes Fusion welding processes shall be either one or a combination of the following welding processes with their reference number in accordance with EN ISO 4063: 111 Manual metal arc welding (metal arc welding with covered electrode); 114 Self-shielded tubular cored arc welding; 12 S
45、ubmerged arc welding; 13 Gas-shielded metal arc welding; 141 TIG welding with solid filler material (wire/rod); BS EN 1011-8:2018EN 1011-8:2018 (E) 8 143 TIG welding with tubular cored filler material (wire/rod); 15 Plasma arc welding; 185 Magnetically impelled arc welding; 24 Flash welding; 311 Oxy
46、 acetylene welding; 42 Friction welding; 71 Aluminothermic welding; and additionally: cast welding; liquid metal welding. Other fusion welding processes shall be agreed between the manufacturer and the purchaser by the time of acceptance of the order. 8 Welding consumables 8.1 General An appropriate
47、 filler metal (see 3.5, 3.6 and 3.7) shall be selected in accordance with the requirements of the weld and the welding process. Any special recommendations given by the manufacturer and/or supplier of the welding consumables shall be taken into account. Welding consumables (e.g. filler metals, gases
48、 and fluxes) shall conform to the appropriate European and/or International Standards, as applicable (see Annex B, Tables B.1 and B.2). It can be necessary to manufacture appropriate filler metals, especially for oxy acetylene and liquid metal welding. To avoid confusion, such products shall be iden
49、tified. 8.2 Storage and handling For the purposes of this European Standard the storage and handling requirements given in EN 1011-1:2009 shall apply. 9 Equipment 9.1 General For the purposes of this European Standard, the equipment requirements given in EN 1011-1:2009 shall apply. 9.2 Ancillary equipment If applicable, the ancillary equipment shall include: a) power source for welding equipment and additional machinery; b) facilities for joint preparation; BS EN 1011-8:2018EN 1011-8:20
