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1、BRITISH STANDARD BS EN ISO 8496:2004 Metallic materials Tube Ring tensile test (ISO 8496:1998) The European Standard EN ISO 8496:2004 has the status of a British Standard ICS 77.040.10 ? BS EN ISO 8496:2004 This British Standard was published under the authority of the Standards Policy and Strategy
2、Committee on 23 November 2004 BSI 23 November 2004 ISBN 0 580 44841 X National foreword This British Standard is the official English language version of EN ISO 8496:2004. It is identical with ISO 8496:1998. It supersedes BS EN 10237:1994 which is withdrawn. The UK participation in its preparation w
3、as entrusted by Technical Committee ISE/NFE/4, Mechanical testing of metals, to Subcommittee ISE/NFE/4/2, Ductility testing, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards w
4、hich implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publi
5、cation does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internation
6、al/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor 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 ISO tit
7、le page, the EN ISO foreword page, the ISO title page, page ii, pages 1 and 2, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUR
8、OPENNE EUROPISCHE NORM EN ISO 8496 July 2004 ICS 77.040.10Supersedes EN 10237:1993 English version Metallic materials - Tube - Ring tensile test (ISO 8496:1998) Matriaux mtalliques - Tubes - Essai de traction sur anneaux (ISO 8496:1998) Metallische Werkstoffe - Rohr - Ringzugversuch (ISO 8496:1998)
9、This European Standard was approved by CEN on 1 July 2004. 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 referen
10、ces concerning 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
11、 its own 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
12、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights
13、of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8496:2004: E I NESO 48:6902( 40E) 2 Foreword The text of ISO 8496:1998 has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals” of the International Organization for St
14、andardization (ISO) and has been taken over as EN ISO 8496:2004 by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes“, 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
15、or by endorsement, at the latest by January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. This document supersedes EN 10237:1993. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound
16、to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
17、Kingdom. Endorsement notice The text of ISO 8496:1998 has been approved by CEN as EN ISO 8496:2004 without any modifications. EN ISO 8496:2004 A Reference number ISO 8496:1998(E) INTERNATIONAL STANDARD ISO 8496 Second edition 1998-11-01 Metallic materials Tube Ring tensile test Matriaux mtalliques T
18、ubes Essai de traction sur anneaux EN ISO 8496:2004 )E(8991:6948 OSI OSI 8991 Athgir lls serevr.de selnUs tosiwrehe scepfi,dei trap on fo thsi cilbuptayam noi cudorper ebtu ro dezilide ni yna fomr ro yb nay msnae, lecetrinoc .rehsilbup eht morf gnitirw ni noissimrep tuohtiw ,mliforcim dna gniypocoto
19、hp gnidulcni ,lacinahcem ro noitazidradnatS rof noitazinagrO lanoitanretnI 65 elatsop esaC 02 evneG 1121-HC dnalreztiwS tenretnIhc.osiosi dnalreztiwS ni detnirP ii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bod
20、ies). 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. International organizations, governmental and
21、 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. Draft International Standards adopted by the technical committees are circulated to the member bod
22、ies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 8496 was prepared by Technical Committee ISO/TC 164, Mechanical testing of metals, Subcommittee SC 2, Ductility testing. This second edition can
23、cels and replaces the first edition (ISO 8496:1986), of which it constitutes a technical revision. EN ISO 8496:2004 DRADNATS LANOITANRETNI OSI)E(8991:6948 OSI 1 Metallic materials Tube Ring tensile test 1 Scope This International Standard specifies a method for a ring tensile test of tubes to reveal
24、 surface and internal defects by subjecting the test piece to strain until fracture occurs. This test may also be used 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 dia
25、meter shall be greater than 100 mm. 2 Principle Subjecting a ring cut from the end of a tube to strain in the circumferential direction until fracture occurs. 3 Apparatus 3.1 Two circular pins, of equal diameter with parallel axes, and movable in relation to each other while still remaining parallel
26、. In principle, the diameter of the pins shall be the minimum permissible from strength considerations but, provided that the 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 millimetres Figure 1 EN ISO 8496:2004
27、 )E(8991:6948 OSI OSI 2 4 Test piece 4.1 The test piece shall be a ring cut from the tube with the end faces perpendicular 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
28、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 methods. NOTE Non-rounded or non-chamfered edges are permissible, if the test result meets the test requirements. 5 Procedure 5.1 In general, the test shall be carried out at
29、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. 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 frac
30、tures. 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 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 i
31、f no cracks are visible without the use of magnifying aids. 6 Test report A 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) reference to this International Standard, i.e. ISO 8496; b)
32、 identification of the test piece; c) dimensions of the test piece; d) result of the test. EN ISO 8496:2004 BS EN ISO 8496:2004 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
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