1、BRITISH STANDARD BS EN 1011-8:2004 Incorporating Corrigendum No.1 Welding Recommendations for welding of metallic materials Part 8: Welding of cast irons The European Standard EN 1011-8:2004 has the status of a British Standard ICS 25.160.10 BS EN 1011-8:2004 This British Standard was published unde
2、r the authority of the Standards Policy and Strategy Committee on 17 November 2004 BSI 9 December 2004 ISBN 0 580 44785 5 National foreword This British Standard is the official English language version of EN 1011-8:2004. It partially supersedes BS 4570:1985. The UK participation in its preparation
3、was entrusted to Technical Committee ISE/35, Cast iron, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in thi
4、s document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a con
5、tract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals
6、for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyr
7、ight notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 15497 Corrigendum No.1 9 December 2004 Correction to supersession information.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10118 November2004 ICS25.160.1
8、0 Englishversion WeldingRecommendationsforweldingofmetallicmaterials Part8:Weldingofcastirons SoudageRecommandationspourlesoudagedes matriauxmtalliquesPartie8:Soudagedesfontes SchweienEmpfehlungenzumSchweienmetallischer WerkstoffeTeil8:SchweienvonGusseisen ThisEuropeanStandardwasapprovedbyCENon13Sep
9、tember2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecret
10、ariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandard
11、sbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROP
12、ENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10118:2004:EEN 1011-8:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and
13、definitions .4 4 Abbreviations and symbols5 5 Provision for quality assurance requirements .5 6 Storage, handling and identification of parent metal.5 7 Fusion welding processes5 8 Welding consumables.6 8.1 General6 8.2 Supply, storage and handling 6 9 Equipment 6 9.1 General6 9.2 Ancillary equipmen
14、t 6 10 Fabrication7 10.1 General7 10.2 Butt welding .7 10.3 Fillet welding 7 11 Weld preparation7 11.1 Joint welds .7 11.2 Finishing welds and repair welds 7 12 Positioning of parts to be welded 8 13 Pre-heat temperature and interpass temperature 8 14 Tack welds8 15 Temporary attachments 8 16 Run-on
15、 plates and run-off plates .8 17 Arcing8 18 Inter-run cleaning and inter-run treatment8 19 Heat input .8 20 Welding procedure specification (WPS) .8 21 Traceability.9 22 Peening .9 23 Inspection and testing.9 24 Quality requirements.9 25 Correction of non-conformity.9 26 Distortion 9 27 Post weld he
16、at treatment 9 28 Post weld cleaning.9 Annex A (normative) Quality requirements .10 Annex B (informative) Welding technology for cast iron castings .16 Bibliography 20 EN 1011-8:2004 (E) 3 Foreword This document (EN 1011-8:2004) has been prepared by Technical Committee CEN/TC 190 “Foundry technology
17、”, 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 May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. Within its pr
18、ogramme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 5 “Welding of cast iron“ to prepare the following standard: EN 1011-8, Welding Recommendations for welding of metallic materials Part 8: Welding of cast irons. This is one of a series of European Standards for requirements for f
19、usion welding of metallic materials. This European Standard, with the general title Welding - Recommendations for welding of metallic materials, 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
20、 Part 4: Arc welding of aluminium 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 coun- tries are bound t
21、o implement this European Standard : Austria, Belgium, Cyprus, Czech Republic, Denmark, Esto- nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and Unite
22、d Kingdom. EN 1011-8:2004 (E) 4 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, Founding Malleable cast irons; EN 1563, Founding Spheroidal graphite cast irons.
23、This document does not apply to the joint welding of cast iron castings to other materials. 2 Normative references 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 editi
24、on of the referenced document (including any amendments) applies. EN 1011-1:1998, Welding Recommendations for welding of metallic materials Part 1: General guidance for arc welding. EN ISO 4063, Welding and allied processes Nomenclature of processes and reference numbers (ISO 4063:1998). EN ISO 1560
25、9-1, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding (ISO 15609-1:2004). NOTE Informative references to documents used in the preparation of this standard, and cited at the appropriate places in the text, are listed in
26、the bibliography. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 production welding any welding carried out during manufacturing before final delivery to the end user NOTE It includes joint welding and finishing welding (see 3.2 and 3.3). 3.
27、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 3.4 repair welding any welding carried out after final delivery of the casting to the end user
28、3.5 homogeneous filler metal any filler metal which results in a deposited metal with the same type of microstructure as the parent metal EN 1011-8:2004 (E) 5 3.6 semi-homogeneous filler metal any filler metal which results in a deposited metal with a steel-type microstructure 3.7 non-homogeneous fi
29、ller metal any 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 cast welding with additional use of a metal arc welding proc
30、ess 4 Abbreviations and symbols For the purposes of this document, the abbreviations and symbols given in EN 1011-1:1998 shall apply. 5 Provision for quality assurance requirements For the purposes of this document, the provisions for quality assurance requirements given in Annex A shall apply. 6 St
31、orage, 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 Fusion welding processes Fusion welding processes shall be eith
32、er 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 submerged arc welding; 13 gas-shielded metal arc welding; 14
33、1 tungsten inert gas welding; TIG welding; 15 plasma arc welding; 185 magnetically impelled arc butt welding; 24 flash welding; 311 oxy-acetylene welding; 42 friction welding; 71 aluminothermic welding; and additionally: EN 1011-8:2004 (E) 6 cast welding; liquid metal welding. Other fusion welding p
34、rocesses 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 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 reco
35、mmendations given by the manufacturer and/or supplier of the welding consumables shall be taken into account. Welding consumables (e.g. filler metals, gases 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
36、be necessary to manufacture appropriate filler metals, especially for oxy-acetylene and liquid metal welding. To avoid confusion, such products shall be identified. 8.2 Supply, storage and handling For the purposes of this document, the supply, storage and handling requirements given in EN 1011-1 sh
37、all apply. 9 Equipment 9.1 General For the purposes of this document, the equipment requirements given in EN 1011-1 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 prepa
38、ration; c) facilities for preheating and post-weld heat treatment including temperature measurement equipment; d) cranes and other handling equipment; e) peening equipment; f) electrode baking ovens, electrode bags etc. for handling filler metals; g) cleaning equipment; h) equipment for destructive
39、and non-destructive testing; i) fixtures and welding jigs; j) personal protection equipment directly connected with welding. EN 1011-8:2004 (E) 7 10 Fabrication 10.1 General When welding cast iron castings, consideration shall be given to the: need for trained and approved welders; need for a respon
40、sible welding co-ordinator; casting geometry; temperature control; stress conditions caused by welding; material behaviour; working conditions; inspection requirements. NOTE Selection of the requirement category (see EN 729-1) is recommended and should be carried out with due consid- eration of any
41、special operating conditions and joint strains together with any economic factors. Prior to welding, there shall be an agreement made between the parties concerned which includes the require- ments for finishing welding, joint welding and repair welding, as applicable. If applicable, finishing and/o
42、r repair welding methods to correct casting non-conformities shall be carefully planned and prepared. The casting surface to be welded shall be checked by a suitable non-destructive test method, in order to ensure sound material after complete removal of any casting non-conformity. 10.2 Butt welding
43、 Butt welding shall be in accordance with EN 1011-1. 10.3 Fillet welding Fillet welding shall be in accordance with EN 1011-1. 11 Weld preparation 11.1 Joint welds Preparation shall be carried out in accordance with EN 1011-1. NOTE In addition, joint welding should meet the recommendations given in
44、Table B.1 and Table B.2. 11.2 Finishing welds and repair welds Preparation shall remove any crack, pore, notch and contamination. The area to be welded shall be suitable for the welding process (see B.1 and B.2). NOTE Recommendations on weld preparation are given in B.2. If contamination cannot be r
45、emoved (e.g. during repair welding), other measures shall be used, such as the selection of special filler metals. EN 1011-8:2004 (E) 8 12 Positioning of parts to be welded Positioning of parts to be welded shall be carried out in accordance with EN 1011-1. 13 Pre-heat temperature and interpass temp
46、erature The pre-heat temperature T pand interpass temperature T ishall be within the recommended values given in B.4 and Tables B.1 and B.2, depending on the influence of the following process parameters: filler metal; parent material grade; geometry of the casting; welding process; welding paramete
47、rs. 14 Tack welds Tack welds shall be in accordance with EN 1011-1. 15 Temporary attachments Temporary attachments shall be in accordance with EN 1011-1. 16 Run-on plates and run-off plates Run-on and run-off plates shall be in accordance with EN 1011-1. 17 Arcing Arcing shall be in accordance with
48、EN 1011-1. 18 Inter-run cleaning and inter-run treatment Inter-run cleaning and inter-run treatment shall be in accordance with EN 1011-1. 19 Heat input If applicable, heat input can be estimated in accordance with EN 1011-1. 20 Welding procedure specification (WPS) If a welding procedure specification is required: for arc welding its content shall be in accordance with EN ISO 15609-1; for other welding methods, its content may be modified. In this case, its content shall be agreed in writin
