EN ISO 8492-2013 en Metallic materials - Tube - Flattening test《金属材料 管材 压扁试验》.pdf

1、BSI Standards PublicationBS EN ISO 8492:2013Metallic materials Tube Flattening testBS EN ISO 8492:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 8492:2013.It supersedes BS EN ISO 8492:2004 which is withdrawn.The UK participation in its preparation was

2、entrusted to TechnicalCommittee ISE/101/2, Ductility testing.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 are responsible for its correctapplication. The

3、British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 82938 3ICS 77.040.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 Nov

4、ember 2013.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8492 November 2013 ICS 77.040.10 Supersedes EN ISO 8492:2004English Version Metallic materials - Tube - Flattening test (ISO 8492:2013) Matriaux mtalliques - Tubes - Essai daplati

5、ssement (ISO 8492:2013) Metallische Werkstoffe - Rohr - Ringfaltversuch(ISO 8492:2013) This European Standard was approved by CEN on 28 October 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status

6、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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germa

7、n). A version 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,

8、 Cyprus, 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 Unite

9、d Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE 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 I

10、SO 8492:2013 EBS EN ISO 8492:2013EN ISO 8492:2013 (E) 3 Foreword This document (EN ISO 8492:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals“ in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” the secretariat of wh

11、ich is held by UNI. 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 May 2014, and conflicting national standards shall be withdrawn at the latest by May 2014. Attention is drawn to the possibility

12、 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 ISO 8492:2004. According to the CEN-CENELEC Internal Regulations, the national standards organi

13、zations 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 Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, M

14、alta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 8492:2013 has been approved by CEN as EN ISO 8492:2013 without any modification. BS EN ISO 8492:2013ISO 8492:2013(E) ISO 2013 All ri

15、ghts reserved iiiContents PageForeword iv1 Scope . 12 Symbols, designations and units 13 Principle 14 Testing equipment 25 Test piece 26 Procedure. 27 Test report . 2BS EN ISO 8492:2013ISO 8492:2013(E)ForewordIISO (the International Organization for Standardization) is a worldwide federation of nati

16、onal standards bodies (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. Internat

17、ional organizations, 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 intende

18、d for its further maintenance 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.or

19、g/directivesAttention 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

20、 the Introduction and/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.The committee responsible for this document is ISO/TC 164, Mechanical testing of

21、metals, Subcommittee SC 2, Ductility testing.This third edition cancels and replaces the second edition (ISO 8492:1998), of which it constitutes a minor revision.iv ISO 2013 All rights reservedBS EN ISO 8492:2013INTERNATIONAL STANDARD ISO 8492:2013(E)Metallic materials Tube Flattening test1 ScopeThi

22、s International Standard specifies a method for determining the ability of metallic tubes of circular cross-section to undergo plastic deformation by flattening. It may also be used to reveal the defects in the tubes.This International Standard is applicable to tubes having an outside diameter no gr

23、eater than 600 mm and a thickness no greater than 15 % of the outside diameter. The range of the outside diameter or thickness, for which this International Standard is applicable, may be more exactly specified in the relevant product standard.2 Symbols, designations and unitsSymbols, designations a

24、nd units for the flattening test are given in Table 1 and are shown in Figure 1.Table 1Symbol Designation Unita ab DHLWall thickness of the tubeInside width of flattened test pieceOutside diameter of the tubeDistance between platens measured under loadLength of the test piecemmmmmmmmmmaThe symbol T

25、is also used in steel tube standards.3 PrincipleFlattening the end of a tube or a test piece of specified length, cut from a tube in a direction perpendicular to the longitudinal axis of the tube, until the distance between platens measured under load in the direction of flattening reaches a value s

26、pecified in the relevant product standard see Figure 1, a) and b).In the case of close flattening, the internal surfaces of the test piece shall be in contact over at least half of the internal width b of the flattened test piece standard see Figure 1 c).a) b) c)Figure 1 ISO 2013 All rights reserved

27、 1BS EN ISO 8492:2013ISO 8492:2013(E)4 Testing equipmentThe test machine is capable of flattening the test piece to the prescribed distance H between two plane, parallel, rigid platens.The width of the platens shall exceed the width of the test piece after flattening, i.e. at least 1,6 D, and the le

28、ngth of the platens shall extend over the whole length of the test piece.5 Test piece5.1 The length of a test piece shall be no less than 10 mm and no more than 100 mm. The edges of the test piece may be rounded by filing or chamfered by other methods.NOTE Non-rounded or non-chamfered edges are perm

29、issible if the test result meets the test requirements.5.2 When the test is carried out on the end of a full-length tube, the tube shall be cut at right angles to the axis of the tube to a depth of at least 80 % of the tube outside diameter. The cut shall be at a distance from the end of the tube eq

30、ual to the length of the test piece.6 Procedure6.1 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 C 5 C.6.2 Place the test piece between two platens.6.3 Ensure t

31、hat the weld of the welded tubes is in a position as required by the relevant product standard.6.4 Flatten the test piece by moving the platens in a direction perpendicular to the longitudinal axis of the tube.6.5 In case of dispute, the rate of movement of the platens shall not exceed 25 mm/min.6.6

32、 Interpretation of the flattening test shall be carried out in accordance with the requirements of the relevant product standard. When these requirements are not specified, the test piece shall be considered to have passed the test if no cracks are visible without the use of magnifying aids. Slight

33、cracking at the edges shall not be considered a cause for rejection.7 Test reportA test report shall be provided when so specified in the relevant product standard. In this case, the test report shall include at least the following information:a) a reference to this International Standard, i.e. ISO

34、8492;b) identification of the test piece;c) dimensions of the test piece;d) distance between platens under load (H);e) position of the weld, if relevant;f) result of the test.2 ISO 2013 All rights reservedBS EN ISO 8492:2013This page deliberately left blankThis page deliberately left blankBSI is the

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