SIST EN 1011-8:2005
(Main)Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons
Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons
This European Standard 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.
This European Standard does not apply to the joint welding of cast iron castings to other materials.
Schweißen - Empfehlungen zum Schweißen metallischer Werkstoffe - Teil 8: Schweißen von Gusseisen
Dieses Dokument legt die Anforderungen an das Schmelzschweißen von Gussstücken aus unlegierten und niedriglegierten Gusseisen fest, die nach folgenden Normen hergestellt werden:
- EN 1561, Gießereiwesen - Gusseisen mit Lamellengraphit.
- EN 1562, Gießereiwesen - Temperguss.
- EN 1563, Gießereiwesen - Gusseisen mit Kugelgraphit.
Dieses Dokument gilt nicht für das Verbindungsschweißen von Gusseisen mit anderen Materialien.
Soudage - Recommandations pour le soudage des matériaux métalliques - Partie 8: Soudage des fontes
Le présent document spécifie les exigences relatives au soudage par fusion des pieces en fontes non-alliées ou
faiblement alliées produites conformément aux normes :
.EN 1561, Fonderie ? Fontes grises
.EN 1562, Fonderie ? Fontes malléables
.EN 1563, Fonderie ? Fontes a graphite sphéroidal
Le présent document ne s?applique pas au soudage d?assemblage des fontes a d?autres matériaux
Varjenje – Priporočila za varjenje kovinskih materialov – 8. del Varjenje železove litine
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.OLWLQHSchweißen - Empfehlungen zum Schweißen metallischer Werkstoffe - Teil 8: Schweißen von GusseisenSoudage - Recommandations pour le soudage des matériaux métalliques - Partie 8: Soudage des fontesWelding - Recommendations for welding of metallic materials - Part 8: Welding of cast irons77.140.80Železni in jekleni ulitkiIron and steel castings25.160.10Varilni postopki in varjenjeWelding processesICS:Ta slovenski standard je istoveten z:EN 1011-8:2004SIST EN 1011-8:2005en01-januar-2005SIST EN 1011-8:2005SLOVENSKI
STANDARD
SIST EN 1011-8:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1011-8November 2004ICS 25.160.10 English versionWelding - Recommendations for welding of metallic materials -Part 8: Welding of cast ironsSoudage - Recommandations pour le soudage desmatériaux métalliques - Partie 8: Soudage des fontesSchweißen - Empfehlungen zum Schweißen metallischerWerkstoffe - Teil 8: Schweißen von GusseisenThis European Standard was approved by CEN on 13 September 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1011-8:2004: ESIST EN 1011-8:2005
EN 1011-8:2004 (E) 2 Contents page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Abbreviations and symbols.5 5 Provision for quality assurance requirements.5 6 Storage, handling and identification of parent metal.5 7 Fusion welding processes.5 8 Welding consumables.6 8.1 General.6 8.2 Supply, storage and handling.6 9 Equipment.6 9.1 General.6 9.2 Ancillary equipment.6 10 Fabrication.7 10.1 General.7 10.2 Butt welding.7 10.3 Fillet welding.7 11 Weld preparation.7 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 welds.8 15 Temporary attachments.8 16 Run-on plates and run-off plates.8 17 Arcing.8 18 Inter-run cleaning and inter-run treatment.8 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 heat 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
SIST EN 1011-8:2005
EN 1011-8:2004 (E) 3 Foreword This document (EN 1011-8:2004) 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 May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. Within its programme 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 fusion 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 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 to 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 United Kingdom. SIST EN 1011-8:2005
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. 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 edition 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 15609-1, 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 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). 3.2 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 3.5 homogeneous filler metal any filler metal which results in a deposited metal with the same type of microstructure as the parent metal SIST EN 1011-8:2005
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 filler 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 process 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 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 Fusion 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
submerged arc welding; 13
gas-shielded metal arc welding; 141
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: SIST EN 1011-8:2005
EN 1011-8:2004 (E) 6 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 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 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 identified. 8.2 Supply, storage and handling For the purposes of this document, the supply, storage and handling requirements given in EN 1011-1 shall 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 preparation; 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 and non-destructive testing; i) fixtures and welding jigs; j) personal protection equipment directly connected with welding. SIST EN 1011-8:2005
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 responsible 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 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/or 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 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 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 removed (e.g. during repair welding), other measures shall be used, such as the selection of special filler metals. SIST EN 1011-8:2005
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 temperature The pre-heat temperature Tp and interpass temperature Ti shall 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 parameters. 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 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 writing be-tween the parties concerned. SIST EN 1011-8:2005
EN 1011-8:2004 (E) 9 21 Traceability Traceability shall be in accordance with EN 1011-1. 22 Peening Peening shal
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