1、March 2014 Translation by DIN-Sprachendienst.English price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 7
2、7.040.10!%,l$“2097301www.din.deDDIN EN ISO 8496Metallic materials Tube Ring tensile test (ISO 8496:2013);English version EN ISO 8496:2013,English translation of DIN EN ISO 8496:2014-03Metallische Werkstoffe Rohr Ringzugversuch (ISO 8496:2013);Englische Fassung EN ISO 8496:2013,Englische bersetzung v
3、on DIN EN ISO 8496:2014-03Matriaux mtalliques Tubes Essai de traction sur anneaux (ISO 8496:2013);Version anglaise EN ISO 8496:2013,Traduction anglaise de DIN EN ISO 8496:2014-03SupersedesDIN EN ISO 8496:2004-10www.beuth.deIn case of doubt, the German-language original shall be considered authoritat
4、ive.Document comprises 7 pages02.14 DIN EN ISO 8496:2014-03 2 A comma is used as the decimal marker. National forewoxd This document (EN ISO 8496:2013) has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals”, Subcommittee SC 2 “Ductility testing” (Secretariat: JISC, Japan)
5、 in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” (Secretariat: UNI, Italy) in accordance with the agreement on technical cooperation between ISO and CEN (Vienna Agreement). The responsible German body involved in its preparation was the Normenausschu
6、ss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-01-53 AA Rohrprfung fr Metalle. Amendments This standard differs from DIN EN ISO 8496:2004-10 as follows: a) the standard has been editorially revised. Previous editions DIN 50138: 1964-07, 1979-05 DIN EN 10237: 1994
7、-01 DIN EN ISO 8496: 2004-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM November 2013 ICS 77.040.10 Supersedes EN ISO 8496:2004English Version Metallic materials - Tube - Ring tensile test (ISO 8496:2013) Matriaux mtalliques - Tubes - Essai de traction sur anneaux (ISO 8496:2013) Metallische
8、Werkstoffe - Rohr - Ringzugversuch (ISO 8496:2013) 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 of a national standard without any a
9、lteration. 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, German). A version in any other language
10、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, Cyprus, Czech Republic, Denmark, Es
11、tonia, 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 United Kingdom. EUROPEAN COMMITTEE FOR ST
12、ANDARDIZATION 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 ISO 8496:2013 EEN ISO 8496 Contents P
13、age Foreword . 3 1 Scope . 4 2 Principle 4 3 Apparatus 4 4 Test piece 5 5 Procedure 5 6 Test report . 5 2DIN EN ISO 8496:2014-03EN ISO 8496:2013 (E) Foreword This document (EN ISO 8496:2013) has been prepared by Technical Committee ISO/TC 164 Mechanical testing of metals in collaboration with Techni
14、cal Committee ECISS/TC 110 “Steel tubes, and iron and steel fittings” the secretariat of which 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 st
15、andards shall be withdrawn at the latest by May 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 for identifying any or all such patent rights. This document supersedes EN ISO
16、8496:2004. 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, Finland, Former Yugoslav Republic of Macedonia,
17、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. Endorsement notice The text of ISO 8496:2013 has been approved by CEN as EN
18、ISO 8496:2013 without any modification. “”3DIN EN ISO 8496:2014-03EN ISO 8496:2013 (E)1 ScopeThis International Standard specifies a method for a ring tensile test of tubes to reveal surface and internal defects by subjecting the test piece to strain until fracture occurs. This test may also be used
19、 to assess the ductility of tubes.The ring tensile test is applicable to tubes having an outside diameter exceeding 150 mm and a wall thickness no greater than 40 mm. The inside diameter shall be greater than 100 mm.2 PrincipleSubjecting a ring cut from the end of a tube to strain in the circumferen
20、tial direction until fracture occurs.3 ApparatusUse two circular pins, of equal diameter with parallel axes, and movable in relation to each other while still remaining parallel.In principle, the diameter of the pins shall be the minimum permissible from strength considerations but, provided that th
21、e inside diameter of the tube allows, should be at least 3 times the wall thickness of the tube to be tested (see Figure 1).Dimensions in millimetresFigure 14DIN EN ISO 8496:2014-03EN ISO 8496:2013 (E) 4 Test piece4.1 The test piece shall be a ring cut from the tube with the end faces perpendicular
22、to the axis.4.2 The length of the test piece (width of the ring) shall be approximately 15 mm. If the thickness exceeds 15 mm, the length of the test piece may be equal to the thickness.4.3 The ends of the test piece shall be free from burrs. The edges may be rounded by filing or chamfered by other
23、methods.NOTE Non-rounded or non-chamfered edges are permissible, if the test result meets the test requirements.5 Procedure5.1 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 tempe
24、rature of 23 C 5 C.5.2 Place the ring cut from the tube over the pins. Subject the ring to strain by moving the pins away from each other at a specified rate until it fractures.In cases of dispute, the rate shall not exceed 5 mm/s.5.3 Interpretation of the ring tensile test shall be carried out in a
25、ccordance 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 the expected fracture behaviour was obtained and no other cracks are visible without the use of magnifying aids.6 Test reportA te
26、st 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 8496;b) identification of the test piece;c) dimensions of the test piece;d) result of the test.5DIN EN ISO 8496:2014-03EN ISO 8496:2013 (E)
