1、BRITISH STANDARD BS EN 1011-3:2000 Incorporating Amendment No. 1 Welding Recommendations for welding of metallic materials Part 3: Arc welding of stainless steels The European Standard EN 1011-3:2000, with the incorporation of amendment A1:2003, has the status of a British Standard ICS 25.160.10 BS
2、EN 1011-3:2000 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 2000 BSI 28 January 2004 ISBN 0 580 36715 0 National foreword This British Standard is
3、 the official English language version of EN 1011-3:2000, including amendment A1:2003. It supersedes BS 7475:1991 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee WEE/45, Welding of stainless steel, which has the responsibility to: A list of organizati
4、ons 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 this document may be found in the BSI Catalogue under the section entitled “International Standards Corresponden
5、ce 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 contract. Users are responsible for its correct application. Compliance with a British Standard does not of itse
6、lf confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them
7、 in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 29 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14
8、927 28 January 2004 Modification to Foreword page and deletion of Annex ZA EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1011-3 September 2000 + A1 December 2003 ICS 25.160.10 English version Welding - Recommendations for welding of metallic materials - Part 3: Arc welding of stainless steels
9、 (includes amendment A1:2003) Soudage - Recommandations pour le soudage des matriaux mtalliques - Partie 3: Soudage larc des aciers inoxydables (inclut lamendement A1:2003) Schweien - Empfehlungen zum Schweien metallischer Werkstoffe - Teil 3: Lichtbogenschweien von nichtrostenden Sthlen (enthlt nde
10、rung A1:2003) This European Standard was approved by CEN on 13 August 2000, and amendment A1 was approved by CEN on 20 November 2003. 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 st
11、andard without any alteration. Up-to-date lists and bibliographical references concerning such national standards 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
12、 language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Gre
13、ece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Bruss
14、els 2000 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1011-3:2000 + A1:2003 EPage 2 EN 1011-3:2000 BSI 11-2000 Contents Page Foreword 3 Introduction 4 1 Scope 4 2 Normative references 4 3 Terms and definitions 5 4 Parent metal 6
15、 5 Storage and handling 6 6 Welding consumables 6 7 Fabrication 7 8 Quality requirements of welds 9 9 Distortion 9 10 Post-weld cleaning 10 Annex A (informative) Welding of austenitic stainless steels 11 Annex B (informative) Welding of ferritic stainless steels 18 Annex C (informative) Welding of a
16、ustenitic-ferritic stainless steels 22 Annex D (informative) Welding of martensitic and martensitic-austenitic stainless steels 27 Page 3 EN 1011-3:2000 BSI 11-2000 Foreword This European Standard has been prepared by Technical Committee CEN/TC 121, Welding, the Secretariat of which is held by DS. T
17、his 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 March 2001, and conflicting national standards shall be withdrawn at the latest by March 2001. This document has been prepared under a mandate given
18、to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Ger
19、many, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. This European Standard 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 sta
20、inless steels. Part 4: Arc welding of aluminium and aluminium alloys. Annexes A, B, C and D are informative. Foreword to amendment A1 This document EN 1011-3:2000/A1:2003 has been prepared by Technical Committee CEN/TC 121, Welding, the Secretariat of which is held by DS. This Amendment to the Europ
21、ean Standard EN 1011-3:2000 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2004 and conflicting national standards shall be withdrawn at the latest by June 2004. This document has been prepared under a mandate giv
22、en to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France,
23、Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. Page 4 EN 1011-3:2000 BSI 11-2000 Introduction This European Standard is being issued with several annexes in order that it may be extende
24、d to cover the different types of steel which will be produced to all the European steel standards for stainless steels. When this standard is referenced for contractual purposes, the ordering authority should state the need for compliance with the standard and such other annexes as are appropriate.
25、 This standard gives general guidance for the satisfactory production and control of welding and details the possible detrimental phenomena which may occur with advice on methods by which they may be avoided. It is generally applicable to all stainless steels and is appropriate regardless of the typ
26、e of fabrication involved, although the application standard may have additional requirements. Permissible design stresses in welds, methods of testing and acceptance levels are not included because they depend on the service conditions of the fabrication. These details should be obtained from the d
27、esign specification. This part of this European Standard contains additional details for fusion welding of stainless steels and should be read in conjunction with the general recommendations in EN 1011-1. 1 Scope This European Standard gives general recommendations for the fusion welding of stainles
28、s steels. Specific details relevant to austenitic, austenitic-ferritic, ferritic and martensitic stainless steels are given in annexes A to D. 2 Normative references This European Standard incorporates by dated and undated reference, provisions from other publications. These normative references are
29、 cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest ed
30、ition of the publication referred to applies (including amendments). EN 288-2 Specification and approval of welding procedures for metallic materials Part 2: Welding procedure specification for arc welding EN 439 Welding consumables - Shielding gases for arc welding and cutting EN 1600 Welding consu
31、mables - Covered electrodes for manual metal arc welding of stainless and heat resisting steels - Classification EN 1011-1 Welding - Recommendations for welding of metallic materials Part 1: General guidance for arc welding EN 10088-1 Stainless steels - Part 1: List of stainless steels Page 5 EN 101
32、1-3:2000 BSI 11-2000 EN 12072 Welding consumables - Wire electrodes, wires and rods for arc welding of stainless and heat resisting steels - Classification EN 12073 Welding consumables - Tubular cored electrodes for metal arc welding with or without a gas shield of stainless and heat resisting steel
33、s - Classification EN 25817 Arc-welded joints in steel - Guidance on quality levels for imperfections (ISO 5817:1992) EN 29692 Metal-arc welding with covered electrode, gas-shielded metal-arc welding and gas welding - Joint preparations for steel (ISO 9692:1992) EN ISO 8249 Welding Determination of
34、Ferrite Number (FN) in austenic and duplex ferritic-austenitic Cr-Ni stainless steel welds metals (ISO 8249:2000) CR ISO 15608 Welding - Guidelines for a metallic material grouping system (ISO/TR 15608:2000) 3 Terms and definitions For the purposes of this European Standard the following terms and d
35、efinitions apply. 3.1 passive layer a thin, transparent and tightly adherent film on the surface of stainless steels which protects them from corrosive attack 3.2 stabilized/unstabilized stabilized steels contain additions of strong carbide/nitride forming elements, (usually titanium or niobium), wh
36、ich limit the formation of chromium carbides/nitrides, allowing the stainless steel to retain its corrosion resistance, particularly around grain boundaries 3.3 ferrite number (FN) a number indicating magnetic attraction, relative to a series of reference samples and therefore, proportional to the f
37、erro-magnetic phase content, approximately equal to ferrite (delta ferrite) content over the range 0 % to 10 % but more readily measured EN ISO 8249 3.4 consumable insert a length of filler metal which is manufactured to conform with the shape and dimensions of the weld preparation and is melted to
38、become an integral part of the joint during welding Page 6 EN 1011-3:2000 BSI 11-2000 3.5 proof strength where proof strength is referred to in this standard it refers to 0,2 % proof strength (R p0,2 % ) 4 Parent metal This standard applies to stainless steels of the austenitic, ferritic, martensiti
39、c and austenitic/ferritic types, according to groups 8 to 10 of CR ISO 15608. 5 Storage and handling When storing, handling or fabricating stainless steel, the environment shall be controlled to avoid permanent breakdown of the passive layer, which gives stainless steel its good corrosion resistance
40、. Stainless steels shall be protected from contamination and surface damage during all stages of storage, fabrication and transportation. Contact between stainless steels and other materials, e.g. carbon steels, copper, paints, dyes and tapes, which cause a breakdown of the passive layer or other de
41、trimental effects should be avoided. When contact is not avoidable care should be taken that all residues are removed. Racking for stainless steels shall be strongly built and shall be lined in a secure manner with materials that will not contaminate stainless steel, e.g. dry wood or stainless steel
42、. Unlined or painted carbon steel racking shall not be used. Lifting grabs shall be made from or lined with a non-contaminating material. Welding fixtures, earth clamps or manipulators shall be either manufactured from or lined with non-contaminating materials. 6 Welding consumables Filler materials
43、 should be selected having regard to the parent metals and the particular application and shall comply with the relevant standards. Where consumable inserts are used they shall correspond with the relevant filler metal composition. Page 7 EN 1011-3:2000 BSI 11-2000 7 Fabrication 7.1 General Faciliti
44、es for fabrication of stainless steels shall be segregated from other works and kept free of all possible contaminating materials such as lead, zinc, copper, copper alloys or carbon steels, etc. Forming tools shall be cleaned thoroughly before use to avoid cross contamination. All lubricants used in
45、 the forming operations shall be removed from the workpiece. Only tools dedicated to stainless steel shall be employed; this particularly applies to grinding wheels and wire brushes. Welding heats up the parent metal which causes formation of oxide films both on the weld metal and on the surrounding
46、 areas of the weld. These oxides as well as slags produced by covered electrodes, flux cored wires and submerged arc welding, shall be removed if the weld is to be exposed to a corrosive medium or for other reasons (see clause 10). When preparing fusion faces, oxidation, hardening and general contam
47、ination from thermal cutting processes should be eliminated by mechanically machining to a sufficient depth from the cut face. During shearing cracking can occur. These may also require to be removed prior to welding. Where cut edges do not form fusion faces, care should be taken to ensure that the
48、shearing or thermal cutting does not adversely affect the performance of the fabrication. Hard stamping should be avoided, but when it has to be used attention is drawn to the danger of it being applied in highly stressed or corrosive areas and the purchaser should give guidance as to the location o
49、f such marks. Indentations used for marking in radiographic examination should be subject to similar precautions. Welds which are to be inspected and approved should not be painted or otherwise treated until they have been accepted. 7.2 Weld details Welding details shall be described in an appropriate Welding Procedure Specification (WPS) in accordance with EN 288-2. Further details of weldability aspects are given in annexes A to D. Acceptance crit
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