1、BSI Standards PublicationBS EN ISO 2553:2013Welding and allied processes Symbolic representation ondrawings Welded jointsBS EN ISO 2553:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 2553:2013.It supersedes BS EN 22553:1995 which is withdrawn.The UK pa
2、rticipation in its preparation was entrusted to TechnicalCommittee WEE/1, Definitions and symbols for welding.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users
3、 are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 53308 2ICS 01.100.20; 25.160.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the autho
4、rity of theStandards Policy and Strategy Committee on 31 December 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2553 December 2013 ICS 01.100.20; 25.160.40 Supersedes EN 22553:1994English Version Welding and allied processes - Symb
5、olic representation on drawings - Welded joints (ISO 2553:2013) Soudage et techniques connexes - Reprsentations symboliques sur les dessins - Joints souds (ISO 2553:2013) Schweien und verwandte Prozesse - Symbolische Darstellung in Zeichnungen - Schwei- und Ltverbindungen (ISO 2553:2013) This Europe
6、an Standard was approved by CEN on 20 December 2013. 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. Up-to-date lists and bibliographical references co
7、ncerning 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 version in any other language made by translation under the responsibility of a CEN member
8、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
9、, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI
10、TEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2553:2013 EBS EN ISO 2553:2013EN ISO 2553:2013 (E) 3 Foreword This document (EN ISO 2553:2013)
11、 has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” 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 t
12、ext or by endorsement, at the latest by June 2014, and conflicting national standards shall be withdrawn at the latest by June 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
13、for identifying any or all such patent rights. This document supersedes EN 22553:1994. 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
14、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 the United Kingdom.
15、Endorsement notice The text of ISO 2553:2013 has been approved by CEN as EN ISO 2553:2013 without any modification. BS EN ISO 2553:2013ISO 2553:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Welding symbol
16、 . 44.1 General . 44.2 Basic welding symbol 44.3 Welding symbol systems 54.4 Elementary symbols . 54.5 Supplementary symbols . 94.6 Arrow line . 144.7 Reference line and weld location .164.8 Tail 195 Dimensioning of welds 195.1 General 195.2 Cross-sectional dimensions 195.3 Length dimensions . 195.4
17、 Butt welds 205.5 Fillet welds 215.6 Plug welds in circular holes 215.7 Plug welds in slots . 215.8 Spot welds 225.9 Seam welds 225.10 Edge welds . 225.11 Stud welds 225.12 Overlay welds 226 Dimensioning of joint preparations 346.1 General 346.2 Root gap . 346.3 Included angle 346.4 Radii and root f
18、aces U and J butt joints 356.5 Depth of joint preparation . 356.6 Countersink angle for plug and slot welds . 377 Alternative butt weld symbol with required weld quality .387.1 General 387.2 Example 38Annex A (informative) Examples of the use of welding symbols 39Annex B (informative) Tolerances and
19、 transition points for weld types950Annex C (informative) Alternative methods for designating intermittent butt and fillet welds 51Bibliography .54BS EN ISO 2553:2013ISO 2553:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodie
20、s (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations,
21、 governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further ma
22、intenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttentio
23、n is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction an
24、d/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessm
25、ent, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC Welding and allied processes, Subcommittee SC 7, Representation and terms.T
26、his fourth edition cancels and replaces the third edition (ISO 2553:1992), which has been technically revised.Requests for official interpretations of any aspect of this standard should be directed to the Secretariat of ISO/TC 44/SC 7 via your national standards body, a complete listing of which can
27、 be found at ww.iso.org.iv ISO 2013 All rights reservedBS EN ISO 2553:2013ISO 2553:2013(E)IntroductionThe symbols given in this standard can be used on technical drawings for welded components. Design-related specifications, such as type, thickness, and length of weld, weld quality, surface treatmen
28、t, filler material and testing specifications, can be indicated directly at the weld by means of the symbols given in this standard. The principals of this standard can be applied to brazed and soldered joints.Clarity may be improved by references to collective information in the drawings or referen
29、ces to additional design-related documents.Preparation for production may require detailed welding-related planning. The type of representation described in this standard can be used for this purpose and complemented by additional production-related information (e.g. welding position, welding proces
30、s, WPS, weld preparation, preheating ). This information is often given in production-related documents, such as work schedules or welding procedure specifications (WPS).Technical drawings are intended to clearly and understandably illustrate design-related specifications. Welding-related drawings s
31、hould be prepared and checked by specially trained personnel (see ISO 14731).This edition of ISO 2553 recognizes that there are two different approaches in the global market to designate the arrow side and other side on drawings, and allows for either to be used in isolation, to suit a particular ma
32、rket need. Application of either approach identifies a welding symbol in accordance with this International Standard. The approach in accordance with system A is based on ISO 2553:1992. The approach in accordance with system B is based upon standards used by Pacific Rim countries. ISO 2013 All right
33、s reserved vBS EN ISO 2553:2013BS EN ISO 2553:2013Welding and allied processes Symbolic representation on drawings Welded joints1 ScopeThis International Standard defines the rules to be applied for symbolic representation of welded joints on technical drawings. This may include information about th
34、e geometry, manufacture, quality and testing of the welds. The principles of this standard may also be applied to soldered and brazed joints.It is recognized that there are two different approaches in the global market to designate the arrow side and other side on drawings. In this Interational Stan
35、dard: clauses, tables and figures which carry the suffix letter “A” are applicable only to the symbolic representation system based on a dual reference line; clauses, tables and figures which carry the suffix letter “B” are applicable only to the symbolic representation system based on a single refe
36、rence line; clauses, tables and figures which do not have the suffix letter “A” or “B” are applicable to both systems.The symbols shown in this International Standard may be combined with other symbols used on technical drawings, for example to show surface finish requirements.An alternative designa
37、tion method is presented which may be used to represent welded joints on drawings by specifying essential design information such as weld dimensions, quality level, etc. The joint preparation and welding process(es) are then determined by the production unit in order to meet the specified requiremen
38、ts.NOTE Examples given in this International Standard, including dimensions, are illustrative only and are intended to demonstrate the proper application of principles. They are not intended to represent good design practices, or to replace code or specification requirements.2 Normative referencesTh
39、e 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.ISO 128 (a
40、ll parts), Technical drawings General principles of presentationISO 129-1, Technical drawings Indication of dimensions and tolerances Part 1: General principlesISO 1302, Geometrical Product Specifications (GPS) Indication of surface texture in technical product documentationISO 3098-2, Technical pro
41、duct documentation Lettering Part 2: Latin alphabet, numerals and marksISO 4063, Welding and allied processes Nomenclature of processes and reference numbersISO/TR 25901:2007, Welding and related processes Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions
42、given in ISO/TR 25901 and the following apply.INTERNATIONAL STANDARD ISO 2553:2013(E) ISO 2013 All rights reserved 1BS EN ISO 2553:2013ISO 2553:2013(E)3.1welding symbolsymbol consisting of an arrow line and a reference line and which may also include elementary and supplementary symbols, dimensions
43、and/or tail, used on technical drawings to indicate welded joint type, location and joint preparationNote 1 to entry: See Clause 4.3.2basic welding symbolsymbol consisting of an arrow line, reference line and tail used when the joint is not specified and only to indicate that a welded joint is to be
44、 madeNote 1 to entry: See 4.2.3.3arrow lineleader line used to indicate the joint that is to be welded generally drawn at 135 to the reference lineNote 1 to entry: See 4.6.3.4reference linepart of the welding symbol on which the elementary symbol is located, generally drawn parallel to the bottom ed
45、ge of the drawingNote 1 to entry: See 4.7.3.5tailV shaped element added to the end of the continuous reference line away from the arrow lineNote 1 to entry: See 4.8.3.6arrow sideside of the joint to which the arrow line is pointingNote 1 to entry: See 4.7.2.1.3.7other sideopposite side of the joint
46、to the arrow sideNote 1 to entry: See 4.7.2.1.3.8elementary symbolsymbol forming part of the welding symbol and drawn on the reference line to indicate the type of weld and joint preparationNote 1 to entry: See 4.4.3.9supplementary symbolsymbol used in conjunction with elementary symbols to convey a
47、dditional information about the jointNote 1 to entry: See 4.5.2 ISO 2013 All rights reservedBS EN ISO 2553:2013ISO 2553:2013(E)3.10complementary informationnon-symbolic information, relevant to the welds being made, which may be included in the tail of the welding symbolNote 1 to entry: See 4.8.3.11
48、intermittent weldseries of weld elements made at intervals along a jointSOURCE: ISO/TR 25901:2007Note 1 to entry: See 5.3.2.3.11.1chain intermittent weldintermittent weld on each side of a joint (usually fillet welds in T and lap joints) arranged so that the welds lie opposite one another along the
49、jointNote 1 to entry: See 5.3.2.2.3.11.2staggered intermittent weldintermittent weld on each side of a joint (usually fillet welds in T and lap joints) arranged so that the welds on one side lie opposite to the spaces on the other side along the jointNote 1 to entry: See 5.3.2.3.3.12offsetdistance between the start of welding on one side of a staggered intermittent weld made on both sides of the joint and the start of welding on the other sideNote 1 to entry: See 5.3.2.3, Table 3 and Table 5, No 2.6.3.13back runfinal run depo
