BS-EN-12680-2-2003.pdf
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1、BRITISH STANDARD BS EN 12680-2:2003 Founding Ultrasonic examination Part 2: Steel castings for highly stressed components The European Standard EN 12680-2:2003 has the status of a British Standard ICS 77.040.20 ? BS EN 12680-2:2003 This British Standard was published under the authority of the Stand
2、ards Policy and Strategy Committee on 5 February 2003 BSI 5 February 2003 ISBN 0 580 41199 0 National foreword This British Standard is the official English language version of EN 12680-2:2003. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/9, Foundry technology
3、, which has the responsibility to: A list of organizations 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
4、 section entitled “International Standards Correspondence 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 applicati
5、on. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monito
6、r related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 35 and a back cover. The BSI copyright date displayed in this document indicates when the document was last is
7、sued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12680-2 January 2003 ICS 77.040.20 English version Founding - Ultrasonic examination - Part 2: Steel castings for highly stressed components Fonderie - Contrle par ultrasons - Partie
8、2: Pices moules en acier pour composants fortement sollicits Gieereiwesen - Ultraschallprfung - Teil 2: Stahlgussstcke fr hoch beanspruchte Bauteile This European Standard was approved by CEN on 21 November 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
9、te the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists
10、 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies
11、of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCH
12、ES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2003 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12680-2:2003 E EN 12680-2:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Terms a
13、nd definitions4 4Requirements.5 4.1Order information 5 4.2Extent of examination6 4.3Maximum permissible size of discontinuities.6 4.4Personnel qualification .6 4.5Wall section zones.6 4.6Severity levels7 5Examination7 5.1Principles7 5.2Material7 5.3Equipment, coupling medium, sensitivity and resolut
14、ion of detection .8 5.4Preparation of casting surfaces for testing 8 5.5Examination procedure.9 5.6Examination report 12 Annex A (normative) Resolution of detection of the instrument/probe combination.20 Annex B (informative) Sound-beam diameters .21 Annex C (informative) Types of indications 23 Bib
15、liography35 EN 12680-2:2003 (E) 3 Foreword This document (EN 12680-2:2003) has been prepared by Technical Committee CEN/TC 190 “Foundry Technol- ogy“, 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 identic
16、al text or by endorsement, at the latest by July 2003, and conflicting national standards shall be withdrawn at the latest by July 2003. Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 4.10 “Inner defects“ to prepare the following standard: EN 12680-2, Founding U
17、ltrasonic examination Part 2: Steel castings for highly stressed components. This is one of three European Standards for ultrasonic examination. The other standards are: EN 12680-1, Founding Ultrasonic examination Part 1: Steel castings for general purposes. EN 12680-3, Founding Ultrasonic examinati
18、on Part 3: Spheroidal graphite cast iron castings. Annex A is normative. Annexes B and C are informative. 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, Czech Republ
19、ic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Swe- den, Switzerland and the United Kingdom. EN 12680-2:2003 (E) 4 1 Scope This European Standard specifies the requirements for the ultrasonic examination of steel casti
20、ngs (with ferritic structure) for highly stressed components and the methods for determining internal discontinuities by the pulse echo technique. This European Standard applies to the ultrasonic examination of steel castings which have usually received a grain refining heat treatment and which have
21、 wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements apply with respect to test procedure and recording levels. This European Standard does not apply to austenitic steels and joint welds. 2 Normative references This European Standard incorporates by dated or
22、 undated reference, provisions from other publications. These normative references are 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
23、 when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 583-1, Non-destructive testing Ultrasonic examination Part 1: General principles. EN 583-2, Non-destructive testing Ultrasonic examination Pa
24、rt 2: Sensitivity and range setting. EN 583-5:2000, Non-destructive testing Ultrasonic examination Part 5: Characterization and sizing of discon- tinuities. EN 12223, Non-destructive testing Ultrasonic examination Specification for calibration block No. 1. EN 12668-1, Non-destructive testing Charact
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