SIST EN 1011-8:2018
(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 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.
Schweißen - Empfehlungen zum Schweißen metallischer Werkstoffe - Teil 8: Schweißen von Gusseisen
Dieses Dokument legt die Anforderungen an das Schmelzschweißen von Gussstücken aus unlegiertem und niedriglegiertem 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 Werkstoffen.
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 pièces moulées en fonte non alliée ou faiblement alliée, produites conformément aux normes :
- EN 1561, Fonderie - Fontes à graphite lamellaire ;
- EN 1562, Fonderie - Fontes malléables ;
- EN 1563, Fonderie - Fontes à graphite sphéroïdal.
Le présent document ne s’applique pas au soudage d’assemblage des pièces moulées en fonte à d’autres matériaux.
Varjenje - Priporočila za varjenje kovinskih materialov - 8. del: Varjenje železove litine
Ta dokument določa zahteve za talilno varjenje ulitkov iz nelegirane in malolegirane železove litine, izdelane
v skladu z:
– EN 1561, Livarstvo – Siva litina;
– EN 1562, Livarstvo – Temprana železova litina.
– EN 1563, Livarstvo – Sferoidna grafitna železova litina.
Ta dokument ne velja za zvarno spajanje ulitkov iz železove litine na druge materiale.
General Information
Relations
Standards Content (Sample)
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 1011-8:2018SIST EN 1011-8:2018en,fr,de01-julij-2018SIST EN 1011-8:2018SLOVENSKI
STANDARDSIST EN 1011-8:20051DGRPHãþD
SIST EN 1011-8:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1011-8
May
t r s z ICS
t wä s x rä s r Supersedes EN
s r s sæ zã t r r vEnglish Version
Welding æ Recommendations for welding of metallic materials æ Part
zã Welding of cast irons Soudage æ Recommandations pour le soudage des matßriaux mßtalliques æ Partie
z ã Soudage des fontes Schweißen æ Empfehlungen zum Schweißen metallischer Werkstoffe æ Teil
zã Schweißen von Gusseisen This European Standard was approved by CEN on
t t January
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s r s sæ zã t r s z ESIST EN 1011-8:2018
EN 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 . 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 temperature 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 Inspection 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 SIST EN 1011-8:2018
EN 1011-8:2018 (E) 3 Annex A (normative)
Quality requirements . 12 A.1 General . 12 A.2 Requirements 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
SIST EN 1011-8:2018
EN 1011-8:2018 (E) 4 European foreword This document (EN 1011-8:2018) 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 conflicting 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 supersedes 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 modifications 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 Subclause 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 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, 3rd column: standard text "Smooth edge rounding is not an undercut.” added as footnote c; SIST EN 1011-8:2018
EN 1011-8:2018 (E) 5 — Annex A, A.2.2, below 2nd paragraph: 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 especially 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 with 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 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 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, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 1011-8:2018
EN 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, 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 documents are referred to in the text in such a way that some or all of their content constitutes 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 for 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, Specification 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 in 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 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 SIST EN 1011-8:2018
EN 1011-8:2018 (E) 7 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 deposited 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 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 1011-1:2009 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 TIG welding with solid filler material (wire/rod); SIST EN 1011-8:2018
EN 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 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 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 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; SIST EN 1011-8:2018
EN 1011-8:2018 (E) 9 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. 10 Fabrication 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. Selection of the requirement category (see EN ISO 3834-1) is recommended and should be carried out with due consideration 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 requirements 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. 11 Weld preparation 11.1
Assembly for welding Assembly shall be carried out in accordance with EN 1011-1:2009. In addition, weld preparation should meet the recommendations given in Table B.1 and Table B.2. SIST EN 1011-8:2018
EN 1011-8:2018 (E) 10 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 procedures shall be used, such as the selection of special filler metals. 12 Fabrication and inspection feasibility Positioning of parts to be welded shall be carried out in accordance with EN 1011-1:2009. 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
...
SLOVENSKI STANDARD
oSIST prEN 1011-8:2016
01-februar-2016
9DUMHQMH3ULSRURþLOD]DYDUMHQMHNRYLQVNLKPDWHULDORYGHO 9DUMHQMHåHOH]RYH
OLWLQH
Welding - Recommendations for welding of metallic materials - Part 8: Welding of cast
irons
Schweißen - Empfehlungen zum Schweißen metallischer Werkstoffe - Teil 8: Schweißen
von Gusseisen
Soudage - Recommandations pour le soudage des matériaux métalliques - Partie 8 :
Soudage des fontes
Ta slovenski standard je istoveten z: prEN 1011-8
ICS:
25.160.10 Varilni postopki in varjenje Welding processes
77.140.80 Železni in jekleni ulitki Iron and steel castings
oSIST prEN 1011-8:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 1011-8:2016
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oSIST prEN 1011-8:2016
DRAFT
EUROPEAN STANDARD
prEN 1011-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 25.160.10 Will supersede EN 1011-8:2004
English Version
Welding - Recommendations for welding of metallic
materials - Part 8: Welding of cast irons
Soudage - Recommandations pour le soudage des Schweißen - Empfehlungen zum Schweißen
matériaux métalliques - Partie 8 : Soudage des fontes metallischer Werkstoffe - Teil 8: Schweißen von
Gusseisen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 190.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN in three official versions (English, 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, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR 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 Ref. No. prEN 1011-8:2016 E
worldwide for CEN national Members.
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prEN 1011-8:2016 (E)
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 . 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 . 9
12 Fabrication and inspection feasibility . 9
13 Pre-heat temperature 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) . 10
21 Traceability . 10
22 Elimination of distortion or inherent stresses . 11
23 Inspection 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
2
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Annex A (normative) Quality requirements . 12
A.1 General . 12
A.2 Requirements for fusion welding . 12
Annex B (informative) Welding technology for cast iron castings . 19
B.1 General . 19
B.2 Preparation for welding . 19
B.3 Backing bar . 19
B.4 Heat and temperature distribution . 19
Bibliography . 23
3
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prEN 1011-8:2016 (E)
European foreword
This document (prEN 1011-8:2016) has been prepared by Technical Committee CEN/TC 190 “Foundry
Technology”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede 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 modifications were made:
— “Normative references”: revised;
— Clause 7: Process designations brought in accordance with EN ISO 4063;
— Clause 8.2: Title modified in “Storage and handling”;
— Title of Clause 10.1 removed;
— Clauses 10.2 and 10.3 removed;
— Title of Clause 11.1 changed in “Assembly for welding” and clause 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”;
— Title of Clause 22 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;
— Table B.1, “Column: Method”, “row: Oxy acetylene welding (311)”, last cell, Entry changed in
“Welding rods OII EN 12536”;
— Bibliography revised.
4
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oSIST prEN 1011-8:2016
prEN 1011-8:2016 (E)
This is one of a series of European Standards for requirements for fusion welding of metallic materials
with 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 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.
5
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prEN 1011-8:2016 (E)
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 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 edition of the referenced document (including any amendments) applies.
EN 1011-1:2009, 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)
EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials - Welding
procedure specification - Part 1: Arc welding (ISO 15609-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
production welding
welding carried out during manufacturing before final delivery to the end user
Note 1 to entry: 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
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
6
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prEN 1011-8:2016 (E)
3.6
semi-homogeneous filler metal
filler metal which results in a deposited 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
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 1011-1:2009 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 TIG welding with solid filler material (wire/rod);
15 Plasma arc welding;
185 Magnetically impelled arc welding;
24 Flash welding;
311 Oxy acetylene welding;
42 Friction welding;
71 Aluminothermic welding;
7
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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 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 Storage and handling
For the purposes of this document the storage and handling requirements given in EN 1011-1:2009
shall apply.
9 Equipment
9.1 General
For the purposes of this document, 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;
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.
8
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10 Fabrication
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.
Selection of the requirement category (see EN ISO 3834-1) is recommended and should be carried out
with due consideration 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
requirements 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.
11 Weld preparation
11.1 Assembly for welding
Assembly shall be carried out in accordance with EN 1011-1:2009.
NOTE In addition, weld preparation 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.
12 Fabrication and inspection feasibility
Positioning of parts to be welded shall be carried out in accordance with EN 1011-1:2009.
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oSIST prEN 1011-8:2016
prEN 1011-8:2016 (E)
13 Pre-heat temperature and interpass temperature
The pre-heat temperature T and interpass temperature T shall be within the recommended values
p i
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 1011-1:2009.
15 Temporary attachments
Temporary attachments shall be in accordance with EN 1011-1:2009.
16 Run-on plates and run-off plates
Run-on and run-off plates shall be in accordance with EN 1011-1:2009.
17 Arc strikes
Handling of arc strikes shall be in accordance with EN 1011-1:2009.
18 Weld run sequence
Inter-run cleaning and inter-run treatment shall be in accordance with EN 1011-1:2009.
19 Heat input
If applicable, heat input can be estimated in accordance with EN 1011-1:2009.
20 Welding procedure specification (WPS)
...
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