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1、BRITISH STANDARD BS EN 10232:1994 Metallic materials Tube (in full section) Bend test The European Standard EN 10232:1993 has the status of a British Standard UDC 669-462:620.174 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10232:19
2、94 This British Standard, having been prepared under the direction of the Iron and Steel and the Non-ferrous Metals Standards Policy Committees, was published under the authority of the Standards Board and comes into effect on 15 May 1994 BSI 07-1999 The following BSI references relate to the work o
3、n this standard: Committee reference ISM/NFM/4 Draft announced in BSI News April 1991 ISBN 0 580 22877 0 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the foll
4、owing countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardi
5、zation IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qu
6、alidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, T
7、hu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10232:1994 BSI 07-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 102323 National annex NA (informative) Committees responsibleInside back cover Licensed Copy: sheffieldun she
8、ffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10232:1994 ii BSI 07-1999 National foreword This British Standard has been prepared under the direction of the Iron and Steel and the Non-Ferrous Metals Standards Policy Committees and is the English language version
9、of EN 10232:1993 Metallic materials Tube (in full section) Bend test published by the European Committee for Standardization (CEN). No British Standard is superseded. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible
10、 for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover. This st
11、andard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE
12、 EUROPISCHE NORM EN 10232 October 1993 UDC 669-462:620.174 Descriptors: Metal tubes, mechanical tests, bend tests English version Metallic materials Tube (in full section) Bend test Matriaux mtalliques Tubes Essai de cintrage sur tronons Metallische Werkstoffe Rohr (Rohrabschnitt) Biegeversuch This
13、European Standard was approved by CEN on 1993-10-25. 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
14、ncerning 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 language made by translation under the responsibility of a CEN member into its o
15、wn 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerla
16、nd and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 10232:1993 E Licensed Copy: sheffieldun sheffieldun, na, Thu Oct
17、 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10232:1993 BSI 07-1999 2 Foreword This European Standard has been prepared by sub-committee ECISS/TC 29, the secretariat of which has been allocated to the United Kingdom (BSI). No meeting of the sub-committee has been held but the following
18、 countries voted positively by the PQ-procedure on the acceptability of the reference document as a European Standard: Belgium, Denmark, Finland, France, Germany, Greece, Italy, Netherlands, Norway, Spain, Sweden, Switzerland and the United Kingdom. No country voted negatively. This European Standar
19、d shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 1994, and conflicting national standards shall be withdrawn at the latest by April 1994. In accordance with the CEN/CENELEC Internal Regulations, following countri
20、es are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Prin
21、ciple3 4Symbols, descriptions and units3 5Testing equipment3 6Test piece3 7Procedure3 8Test report4 Figure 1 Symbols for bend test4 Table 1 Symbols, descriptions and units3 Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10232:1994 BSI 07
22、-19993 Introduction This standard is based on ISO 8491:1986 Metallic materials Tube (in full section) Bend test which has been editorially changed in the light of the comments received. A minor technical change has been made in the procedure which, for welded tubes, requires the position of the weld
23、 to be at 90 to the plane of bending. The usage of symbols has been aligned with the requirements of ISO 3545-1:1989. 1 Scope This European Standard specifies a method for determining the ability of full-section metallic tubes of circular cross-section to undergo plastic deformation in bending. It i
24、s intended for tubes with an outside diameter not greater than 65 mm, although the range of the outside diameter for which this European Standard is applicable can be more exactly specified in the relevant product standard. Bend tests of the test pieces taken from tubes in the form of transverse str
25、ips should be made in accordance with ISO 7438:1985 so that the original curvature of the test piece is increased. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate pla
26、ces 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 edition of the publication refe
27、rred to applies. ISO 3545-1:1989, Steel tubes and fittings Symbols for use in specifications Part 1: Tubes and tubular accessories with circular cross-section. ISO 7438:1985, Metallic materials Bend test. 3 Principle Bending a straight tube in full section around a grooved former of a specified radi
28、us r, until the angle of bend ! (see Figure 1) reaches the value specified in the relevant product standard. 4 Symbols, descriptions and units Symbols, descriptions and units for the bend test of tubes in full section are in accordance with ISO 3545-1:1989 and are given in Figure 1 and Table 1. Tabl
29、e 1 Symbols, descriptions and units 5 Testing equipment 5.1 The bend test of tubes shall be carried out on tube bending machines designed to restrict the development of ovality of the section of tube. 5.2 The tube bend former of the machine shall have a groove corresponding in profile to the outside
30、 diameter of the tube. The radius r at the bottom of the groove shall be specified in the relevant product standard. NOTEThe tolerance of radius r and the depth and ovality of the groove all have an effect on the test result. 6 Test piece The test piece shall be a portion of a straight tube of any l
31、ength which will allow the test to be carried out on the tube bending machine. 7 Procedure 7.1 In general, the test shall be carried out at ambient temperature within the limits of 10 C to 35 C. The test carried out under controlled conditions shall be made at a temperature of (23 5) C. 7.2 Bend the
32、 unfilled test piece of the tube by means of a tube bending machine, ensuring contact between the test piece and the tube bend former over the length of bend, until the specified angle of bend is reached. 7.3 If welded tubes are subjected to the test, the position of the weld shall be at 90 to the p
33、lane of bending, i.e. on the neutral axis, unless otherwise indicated in the relevant product standard. 7.4 Interpretation of the bend test of tubes shall be carried out according to the requirements of the relevant product standard. When these requirements are not specified, absence of cracks visib
34、le without the use of magnifying aids shall be considered as evidence that the test piece passed the test. SymbolDescriptionUnit DOutside diameter of the tubemm TWall thickness of the tubemm LLength of the test piece before the testmm rInside radius at the bottom of the groovemm aAngle of the bendde
35、gree Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 10232:1993 4 BSI 07-1999 8 Test report 8.1 A test report shall be provided when so specified in the relevant product standard. 8.2 The test report shall include at least the following i
36、nformation: a) reference to this European Standard; b) identification of the test piece; c) dimensions of the test piece; d) angle of the bend and radius r; e) position of the weld in relation to the plane of bending; f) result of the test. Figure 1 Symbols for bend test Licensed Copy: sheffieldun s
37、heffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 10232:1994 BSI 07-1999 National annex NA (informative) Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Iron and Steel Standards Policy Commit
38、tee (ISM/-) and the Non-ferrous Metals Standards Policy Committee (NFM/-) to Technical Committee ISM/NFM/4 upon which the following bodies were represented: AEA Technology Aluminium Federation British Non-ferrous Metals Federation British Railways Board British Steel Industry Copper Development Asso
39、ciation Department of Trade and Industry (National Measurement Accreditation Service) Department of Trade and Industry (National Physical Laboratory) ERA Technology Ltd. GAMBICA (BEAMA Ltd.) Institute of Materials Light Metal Founders Association Ministry of Defence Society of British Aerospace Comp
40、anies Limited University College London Welding Institute The following body was also represented in the drafting of the standard, through subcommittees and panels: British Welded Steel Tube Association Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, Uncontrolled Copy
41、, (c) BSI BS EN 10232:1994 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.
42、Revisions British Standards are updated by amendment or revision. Users of British Standards 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 services. We would be grateful if anyone finding an inaccuracy o
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47、e purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: 020 8996 7002. Fax: 020 8996 7001. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the internationalstandardization bod
48、ies. Except as permitted under the Copyright, Designs 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
49、 use, in the course of implementing the standard, 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. If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager. Tel: 020 8996 7070. Licensed Copy: sheffieldun sheffieldun, na, Thu Oct 26 04:25:22 GMT+00:00 2006, U
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