1、June 2014Translation by DIN-Sprachendienst.English price group 15No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25
2、.160.40!%2c)“2156406www.din.deDDIN EN ISO 5817Welding Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) Quality levels for imperfections (ISO 5817:2014);English version EN ISO 5817:2014,English translation of DIN EN ISO 5817:2014-06Schweien Schmelzschweiverbind
3、ungen an Stahl, Nickel, Titan und deren Legierungen(ohne Strahlschweien) Bewertungsgruppen von Unregelmigkeiten (ISO 5817:2014);Englische Fassung EN ISO 5817:2014,Englische bersetzung von DIN EN ISO 5817:2014-06Soudage Assemblages en acier, nickel, titane et leurs alliages souds par fusion(soudage p
4、ar faisceau exclu) Niveaux de qualit par rapport aux dfauts (ISO 5817:2014);Version anglaise EN ISO 5817:2014,Traduction anglaise de DIN EN ISO 5817:2014-06SupersedesDIN EN ISO 5817:2006-10and DIN EN ISO 5817 Corrigendum 1:2007-10www.beuth.deIn case of doubt, the German-language original shall be co
5、nsidered authoritative.Document comprises 35 pages05.14 DIN EN ISO 5817:2014-06 2 A comma is used as the decimal marker. National foreword The present standard is the result of standardization at international level. The content of this standard is identical with that of ISO 5817:2014, which was dev
6、eloped by ISO/TC 44/SC 10 “Unification of requirements in the field of metal welding” and has been published in Europe as EN ISO 5817:2014 . The responsible German body involved in its preparation was the Normenausschuss Schweien und verwandte Verfahren (Welding and Allied Processes Standards Commit
7、tee), Working Committee NA 092-00-04 AA Qualittssicherung beim Schweien (DVS AG Q 2). This standard serves as a reference standard for specifying the assessment of welds in various applications such as steel construction and the construction of pressure vessels, as well as for the qualification test
8、ing of welders and the qualification of welding procedures. This standard is also to be used for weld assessment in the qualification testing of welders for under-water welding as specified in DIN EN ISO 15618-1 and DIN EN ISO 15618-2. Due to the broad scope of this standard and the need to come to
9、a consensus, some compromises were necessary which could not cover every individual case. However, it was still possible to create a common basis for assessing fusion-welded joints and thus to lay down requirements for welded joints and production facilities that are comparable. The assessment crite
10、ria laid down in this standard include limits for internal imperfections; at present it is not possible to identify such imperfections in all possible weld geometries using current methods such as those commonly used in the US. Therefore, these assessment criteria can only be used for welds for whic
11、h internal imperfections can be clearly identified. This standard assumes that the welds have been made by a qualified welder using a suitable welding process. This prevents the setting of provisions that are related to a specific application and deviate in terms of scope, selection and quality, and
12、 would impede production. The International Standards referred to in this standard have been published as the corresponding DIN EN ISO Standards with the same number: ISO 2553 DIN EN ISO 2553 ISO 4063 DIN EN ISO 4063 ISO 6520-1:2007 DIN EN ISO 6520-1:2007-11 ISO 13919-1 DIN EN ISO 13919-1 ISO 17635
13、DIN EN ISO 17635 DIN EN ISO 5817:2014-06 3 Amendments This standard differs from DIN EN ISO 5817:2006-10 and DIN EN ISO 5817 Corrigendum 1:2007-10 as follows: a) the Introduction has been revised; b) the scope now covers several types of load; c) normative references have been updated; d) the terms
14、and definitions in 3.8 (“smooth weld transition”) and 3.9 (“fatigue class”) have been added e) previously missing symbols have been added to Clause 4; f) in Table 1 the temper colour (1.24) and linear misalignment between plates (3.1) have been added; g) Annex C containing additional requirements fo
15、r welds in steel subject to fatigue has been added; h) the Bibliography has been updated; Previous editions DIN 1912-1: 1927-04, 1932-05, 1937-05, 1956-05, 1960-07, 1976-06 DIN 8563-1: 1964-06, 1973-03, 1978-10 DIN 8563-3: 1972-04, 1975-07, 1979-01, 1985-10 DIN EN 25817: 1992-09 DIN EN ISO 5817: 200
16、3-12, 2006-10 DIN EN ISO 5817 Corrigendum 1: 2007-10 DIN EN ISO 5817:2014-06 4 National Annex NA (informative) Bibliography DIN EN ISO 2553, Welding and allied processes Symbolic representation on drawings Welded joints DIN EN ISO 4063, Welding and allied processes Nomenclature of processes and refe
17、rence numbers DIN EN ISO 6520-1:2007-11, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding (Trilingual version) DIN EN ISO 13919-1, Welding Electrons and laser beam welded joints Guidance on quality levels for imperfections Part 1: St
18、eel DIN EN ISO 15618-1, Qualification testing of welders for under-water welding Part 1: Diver-welders for hyperbaric wet welding DIN EN ISO 15618-2, Qualification testing of welders for under-water welding Part 2: Diver-welders and welding operators for hyperbaric dry welding DIN EN ISO 17635, Non-
19、destructive testing of welds General rules for metallic materials EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 5817February 2014 ICS 25.160.40 Supersedes EN ISO 5817:2007English Version Welding - Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) - Q
20、uality levels for imperfections (ISO 5817:2014) Soudage - Assemblages en acier, nickel, titane et leurs alliages souds par fusion (soudage par faisceau exclu) - Niveaux de qualit par rapport aux dfauts (ISO 5817:2014)Schweien - Schmelzschweiverbindungen an Stahl, Nickel, Titan und deren Legierungen
21、(ohne Strahlschweien) - Bewertungsgruppen von Unregelmigkeiten (ISO 5817:2014) This European Standard was approved by CEN on 4 January 2014. 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 nati
22、onal standard without 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 ver
23、sion 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,
24、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
25、. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 5817:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMU
26、NGContents Page Foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references. 5 3 Terms and definitions 6 4 Symbols 7 5 Assessment of imperfections . 8 Annex A (informative) Examples of determination of percentage (%) porosity 25 Annex B (informative) Additional information and guidelines for us
27、e of this International Standard 27 Annex C (informative) Additional requirements for welds in steel subject to fatigue 28 Bibliography 31 2DIN EN ISO 5817:2014-06EN ISO 5817:2014 (E)ForewordThis document (EN ISO 5817:2014) has been prepared by Technical Committee ISO/TC 44 “Welding and allied proce
28、sses” in collaboration with Technical Committee CEN/TC 121 “Welding” 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 August 2014, and conflicting national
29、standards shall be withdrawn at the latest by August 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN
30、 ISO 5817:2007. 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 Macedo
31、nia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 5817:2014 has been approved by CEN a
32、s EN ISO 5817:2014 without any modification. 3DIN EN ISO 5817:2014-06EN ISO 5817:2014 (E)IntroductionThis International Standard should be used as a reference in the drafting of application codes and/or other application standards. It contains a simplified selection of fusion weld imperfections base
33、d on the designations given in ISO 6520-1.Some of the imperfections described in ISO 6520-1 have been used directly and some have been grouped together. The basic numerical referencing system from ISO 6520-1 has been used.The purpose of this International Standard is to define dimensions of typical
34、imperfections which might be expected in normal fabrication. It may be used within a quality system for the production of welded joints. It provides three sets of dimensional values from which a selection can be made for a particular application. The quality level necessary in each case should be de
35、fined by the application standard or the responsible designer in conjunction with the manufacturer, user and/or other parties concerned. The quality level shall be prescribed before the start of production, preferably at the enquiry or order stage. For special purposes, additional details may be pre
36、scribed.The quality levels given in this International Standard provide basic reference data and are not specifically related to any particular application. They refer to types of welded joint in fabrication and not to the complete product or component itself. It is possible, therefore, that differe
37、nt quality levels are applied to individual welded joints in the same product or component.It would normally be expected that for a particular welded joint the dimensional limits for imperfections could all be covered by specifying one quality level. In some cases, it may be necessary to specify dif
38、ferent quality levels for different imperfections in the same welded joint.The choice of quality level for any application should take account of design considerations, subsequent processing (e.g. surfacing), mode of stressing (e.g. static, dynamic), service conditions (e.g. temperature, environment
39、) and consequences of failure. Economic factors are also important and should include not only the cost of welding but also of inspection, testing and repair.Although this International Standard includes types of imperfection relevant to the fusion welding processes listed in Clause 1, only those wh
40、ich are applicable to the process and application in question need to be considered.Imperfections are quoted in terms of their actual dimensions, and their detection and evaluation may require the use of one or more methods of non-destructive testing. The detection and sizing of imperfections is dep
41、endent on the inspection methods and the extent of testing specified in the application standard or contract.This International Standard does not address the methods used for the detection of imperfections. However, ISO 17635 contains a correlation between the quality level and acceptance level for
42、different NDT methods.This International Standard is directly applicable to visual testing of welds and does not include details of recommended methods of detection or sizing by non-destructive means. It should be considered that there are difficulties in using these limits to establish appropriate
43、criteria applicable to non-destructive testing methods such as ultrasonic, radiographic, eddy current, penetrant, magnetic particle testing and may need to be supplemented by requirements for inspection, examining and testing.The values given for imperfections are for welds produced using normal wel
44、ding practice. Requirements for smaller (more stringent) values as stated in quality level B may include additional manufacturing processes, e.g. grinding, TIG dressing.Annex C gives additional guidance for welds subject to fatigue.4DIN EN ISO 5817:2014-06EN ISO 5817:2014 (E)1 ScopeThis Internationa
45、l Standard provides quality levels of imperfections in fusion-welded joints (except for beam welding) in all types of steel, nickel, titanium and their alloys. It applies to material thickness 0,5 mm. It covers fully penetrated butt welds and all fillet welds. Its principles can also be applied to p
46、artial-penetration butt welds.(Quality levels for beam welded joints in steel are presented in ISO 13919-1.)Three quality levels are given in order to permit application to a wide range of welded fabrication. They are designated by symbols B, C and D. Quality level B corresponds to the highest requi
47、rement on the finished weld.Several types of loads are considered, e.g. static load, thermal load, corrosion load, pressure load. Additional guidance on fatigue loads is given in Annex C.The quality levels refer to production and good workmanship.This International Standard is applicable toa) non-al
48、loy and alloy steels,b) nickel and nickel alloys,c) titanium and titanium alloys,d) manual, mechanized and automatic welding,e) all welding positions,f) all types of welds, e.g. butt welds, fillet welds and branch connections, andg) the following welding processes and their sub-processes, as defined
49、 in ISO 4063: 11 metal-arc welding without gas protection; 12 submerged-arc welding; 13 gas-shielded metal-arc welding; 14 gas-shielded arc welding with non-consumable tungsten electrodes; 15 plasma arc welding; 31 oxy-fuel gas welding (for steel only).Metallurgical aspects, e.g. grain size, hardness, are not covered by this International Standard.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in th
