1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 4050-4:2012Aerospace series Test method for metallic materials Ultrasonic inspection of bars, plates, forging stock and forgingsPart 4: Acceptance criteriaBS EN 4050-4:2012
2、 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4050-4:2012. The UK participation in its preparation was entrusted to TechnicalCommittee ACE/61, Metallic materials for aerospace purposes. A list of organizations represented on this committee can be obtained on
3、request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 75196 7 ICS 49.025.05; 49.025.15 Complia
4、nce with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate Text affectedBS EN 4050-4:2012EUROPEAN STANDARD NORME EUROPENNE
5、EUROPISCHE NORM EN 4050-4 September 2012 ICS 49.025.05; 49.025.15 English Version Aerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings -Part 4: Acceptance criteria Srie arospatiale - Mthode dessai applicable aux matriaux mtalliques
6、 - Linspection par ultrasons des barres, des assiettes, des stocks de forgeage et de pices forges - Partie 4: Critres dacceptation Luft- und Raumfahrt - Prfverfahren fr metallische Werkstoffe - Ultraschallprfung von Stangen, Platten, Schmiedevormaterial und Schmiedestcken - Teil 4: Abnahmekriterien
7、This European Standard was approved by CEN on 15 July 2011. 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 refere
8、nces 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 version in any other language made by translation under the responsibility of a CEN
9、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,
10、 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCH
11、ES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4050-4:2012: EBS EN 4050-4:2012EN 4050-4:2012 (E) 2 Contents Page Foreword 3g31 Scope 4g32 Normative re
12、ferences 4g33 Acceptance criteria 4g34 Choice of technique.5g3BS EN 4050-4:2012EN 4050-4:2012 (E) 3 Foreword This document (EN 4050-4:2012) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordanc
13、e with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an
14、identical text or by endorsement, at the latest by March 2013, and conflicting national standards shall be withdrawn at the latest by March 2013. 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
15、 responsible for identifying any or all such patent rights. 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,
16、 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. BS EN 4050-4:2012EN 4050-4:
17、2012 (E) 4 1 Scope This European Standard specifies the acceptance criteria for products ultrasonically inspected in accordance with EN 4050-1. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application.
18、For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4050-1, Aerospace series Test method for metallic materials Ultrasonic inspection of billets, bars, plates and forging stock and forgings
19、, Part 1: General requirements 3 Acceptance criteria The acceptance criteria, class 1 to 7, are given in Table 1. Table 1 Acceptance criteria Class Maximum single discontinuity, non linear1)Maximum multiple discontinuities2)Single discontinuity linear1) FBH mm FBH mm mm Response Length 7 0,6 0,4 Not
20、 applicable6 0,8 0,6 0,4 6 5 1,2 0,8 0,8 12,5 4 1,6 1,2 1,2 12,53 2,0 1,2 1,2 25 2 3,2 2,0 2,0 251 5,0 3,2 3,2 50 1)Spacing between indications larger than or equal to 25 mm (defect spacing horizontal and vertical to beam direction). 2)Spacing between indications less than 25 mm (defect spacing hori
21、zontal and vertical to beam direction). The FBH reference value for multiple discontinuities shall be set for the corresponding class in each case. Reject within each particular class: a) Ultrasonic indications shall be not greater than the value given in Table 1 within the corresponding class. b) L
22、oss in back wall echo shall be not greater than the value in dB/mm, or % screen height agreed between the manufacturer and purchaser. c) Noise levels shall be not greater than the monitor threshold level. BS EN 4050-4:2012EN 4050-4:2012 (E) 5 4 Choice of technique Classes 1, 2, 3, 4, 5 and 6 shall b
23、e inspected using either immersion, mechanized contact or manual contact inspection. Classes 5 to 6 shall preferably be inspected by either immersion or mechanized contact. Within class 7, the inspection of sheets and bar for forging or machining shall be carried out using either immersion or mechan
24、ized contact. The forged parts shall be inspected using the immersion technique. This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services. It p
25、resents the UK view on standards in Europe and at the international level. BSI is incorporated by Royal Charter. British Standards and other standardisation products are published by BSI Standards Limited.British Standards Institution (BSI)raising standards worldwideBSI389 Chiswick High Road London
26、W4 4AL UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards and PASs are periodically updated by amendment or revision. Users of British Standards and PASs should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and
27、services. We would be grateful if anyone finding an inaccuracy or ambiguity while using British Standards would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside frontcover. Similary for PASs, please notify BSI Customer Services.Tel: +44 (0
28、)20 8996 9001 Fax: +44 (0)20 8996 7001BSI offers BSI Subscribing Members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of British Standards and PASs.Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001Email: Buying standardsYou may b
29、uy PDF and hard copy versions of standards directly using acredit card from the BSI Shop on the website addition all orders for BSI, international and foreign standards publicationscan be addressed to BSI Customer Services.Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001Email: In response to order
30、s for international standards, BSI will supply the British Standard implementation of the relevant international standard, unless otherwise requested.Information on standardsBSI provides a wide range of information on national, Europeanand international standards through its Knowledge Centre.Tel: +4
31、4 (0)20 8996 7004 Fax: +44 (0)20 8996 7005Email: BSI Subscribing Members are kept up to date with standards developments and receive substantial discounts on the purchase priceof standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002 Fax: +44 (
32、0)20 8996 7001 Email: Information regarding online access to British Standards and PASs via British Standards Online can be found at information about British Standards is available on the BSI website at www.bsi- the data, software and documentation set out in all British Standards and other BSI p
33、ublications are the property of and copyrighted by BSI, or some person or entity that own copyright in the information used (such as the international standardisation bodies) has formally licensed such information to BSI for commerical publication and use. Except as permitted under the Copyright, De
34、signs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means electronic, photocopying, recording or otherwise without prior written permission from BSI. This does not preclude the free use, in the course of implementing the standard
35、, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained. Details and advice can be obtained from the Copyright & Licensing Department.Tel: +44 (0)20 8996 7070Email:
