1、BRITISH STANDARD BS EN ISO 8493:2004 Metallic materials Tube Drift-expanding test The European Standard EN ISO 8493:2004 has the status of a British Standard ICS 77.040.10 BS EN ISO 8493:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24
2、 November 2004 BSI 24 November 2004 ISBN 0 580 44836 3 National foreword This British Standard is the official English language version of EN ISO 8493:2004. It is identical with ISO 8493:1998. It supersedes BS EN 10234:1994 which is withdrawn. The UK participation in its preparation was entrusted by
3、 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 which implement
4、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 publication does not
5、 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 international/European com
6、mittee 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 title page, the EN
7、 ISO foreword page, the ISO title page, page ii, pages 1 to 3 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. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO8493 July2004
8、 ICS77.040.10 SupersedesEN10234:1993 Englishversion MetallicmaterialsTubeDriftexpandingtest(ISO8493:1998) MatriauxmtalliquesTubesEssaidvasement(ISO 8493:1998) MetallischeWerkstoffeRohrAufweitversuch(ISO 8493:1998) ThisEuropeanStandardwasapprovedbyCENon1July2004. CENmembersareboundtocomplywiththeCEN/
9、CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexists
10、inthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Den
11、mark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG Man
12、agementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO8493:2004:EI NESO 48:3902( 40E) 2 Foreword The text of ISO 8493:1998 has been prepared by Technical Committee ISO/TC 164 “Mechanical testing of metals
13、” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 8493:2004 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, e
14、ither by publication of an identical text 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 10234:1993. According to the CEN/CENELEC Internal Regulations, the national standards organizat
15、ions of the following countries are bound 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, Sloven
16、ia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 8493:1998 has been approved by CEN as EN ISO 8493:2004 without any modifications. ENISO8493:2004A Referencenumbe r ISO8493:1998 (E) INTERNATIONAL STANDARD ISO 8493 Secondedition 19981101 MetallicmaterialsTube Drift
17、expandingtest MatriauxmtalliquesTubesEssaidvasement ENISO8493:2004)E(8991:3948OSI OSI8991 Athgirllsserevr.deselnUstosiwrehescepfi,deitraponfothsicilbuptayamnoicudorperebturodezilideniynafomrroybna ymsnae,lecetrinoc .rehsilbupehtmorfgnitirwninoissimreptuohtiw,mliforcimdnagniypocotohpgnidulcni,lacinah
18、cemro noitazidradnatSrofnoitazinagrOlanoitanretnI 65elatsopesaC 02evneG1121HC dnalreztiwS tenretnI hc.osiosi dnalreztiwSnidetnirP ii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISO memberbodies).TheworkofpreparingInternationalStandardsi
19、snormallycarriedoutthroughISOtechnical committees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhas therighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeI
20、nternationalElectrotechnical Commission(IEC)onallmattersofelectrotechnicalstandardization. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting. PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote. InternationalSt
21、andardISO8493waspreparedbyTechnicalCommitteeISO/TC164, Mechanicaltestingofmetals , SubcommitteeSC2, Ductilitytesting . Thissecondeditioncancelsandreplacesthefirstedition(ISO8493:1986),ofwhichitconstitutesatechnical revision. ENISO8493:2004DRADNATSLANOITANRETNI OSI )E(8991:3948OSI 1 Metallicmaterials
22、TubeDriftexpandingtest 1Scope ThisInternationalStandardspecifiesamethodfordeterminingtheabilityofmetallictubesofcircularcrosssection toundergoplasticdeformationindriftexpansion. ThisInternationalStandardisintendedfortubeshavinganoutsidediameternogreaterthan150mm(100mmfor lightmetals)andathicknessnog
23、reaterthan10mmalthoughtherangeoftheoutsidediameterorthethicknessfor whichthisInternationalStandardisapplicablemaybemoreexactlyspecifiedintherelevantproductstandard. 2 Symbols,designationsandunits Symbols,designationsandunitsforthedriftexpandingtestoftubesaregivenintable1andareshowninfigure1. Table1
24、Symbol Designation Unit a a Wallthicknessofthetube mm D Originaloutsidediameterofthetube mm D u Maximumoutsidediameteraftertesting mm L Lengthofthetestpiecebeforetesting mm b Angleoftheconicalmandrel degree a Thesymbol Tisalsousedinsteeltubestandards. Figure1 ENISO8493:2004)E(8991:3948OSI OSI 2 3Pri
25、nciple Expansionoftheendofthetestpiececutfromthetube,bymeansofaconicalmandrel,untilthemaximumoutside diameteroftheexpandedtubereachesthevaluespecifiedintherelevantproductstandard(seefigure1). 4Testing equipment 4.1 Variablespeedpress or universaltestingmachine . 4.2 Conicalmandrel ,whichshallhaveana
26、ngleasspecifiedintherelevantproductstandardanditssurfaceshall bemadeofpolishedmaterialofsufficienthardness. Preferredanglesfortheconicalmandrelare30,45and60. 5Test piece 5.1 Thelengthofthetestpiecedependsontheangleoftheconeofthedriftexpansionconicalmandrel.Whenthis angleisequaltoorlessthan30,theleng
27、thofthetestpieceshallbeapproximately L=2 D.Whenthisangleis greaterthan30,thelengthofthetestpieceshallbeapproximately L=1,5 D. Thetestpiecemaybeshorterprovidedthattheremainingcylindricalpartofthetestpieceafterexpansionisatleast 0,5 D. 5.2 Bothendsofthetestpieceshallbeintheplaneperpendiculartotheaxiso
28、fthetube.Theedgesoftheendto betestedmayberoundedbyfilingorchamferedbyothermethods. NOTENonroundedornonchamferededgesarepermissibleifthetestresultmeetsthetestrequirements. 5.3 Whenweldedtubesaresubjectedtothetest,theinternalweldflashmayberemoved. 6Procedure 6.1 Ingeneral,thetestshallbecarriedoutatamb
29、ienttemperaturewithinthelimitsof10Cto35C.Thetest carriedoutundercontrolledconditionsshallbemadeatatemperatureof23C 5C. 6.2 Forcetheconicalmandrelintothetestpiece,withoutshock,untiltherequiredoutsidediameterisreached.The axisoftheconicalmandrel shallbealignedwiththeaxisofthetube. Themaximumoutsidedia
30、meteroftheexpandedpartofthetestpiece, D u ,orrelativeexpansionasapercentageof theoriginaldiameter, D,shallbespecifiedintherelevantproductstandard.Theangleoftheconicalmandrel, b, maybespecifiedintherelevantproductstandard. Whenlongitudinallyweldedtubesaresubjectedtothetest,theconicalmandrelmaybeprovi
31、dedwithagrooveto accommodateaninternalweldflash. 6.3 Theconicalmandrelmaybelubricated.Itshallnotrotaterelativetothetestpieceduringthetest. 6.4 Incaseofdispute,therateofpenetrationoftheconicalmandrelshallnotexceed50mm/min. 6.5 Interpretationofthedriftexpandingtestshallbecarriedoutinaccordancewithther
32、equirementsofthe relevantproductstandard.Whentheserequirementsarenotspecified,thetestpieceshallbeconsideredtohave passedthetestifnocracksarevisiblewithouttheuseofmagnifyingaids.Slightcrackingattheedgesshallnotbe consideredcauseforrejection. ENISO8493:2004OSI )E(8991:3948OSI 3 7Test report Atestrepor
33、tshallbeprovidedwhensospecifiedintherelevantproductstandard.Inthiscase,thetestreportshall includeatleastthefollowinginformation: a) referencetothisInternationalStandard,i.e.ISO8493; b) identificationofthetestpiece; c) dimensionsofthetestpiece; d) maximumoutsidediameteroftheexpandedpartofthetestpiece
34、, D u , orrelativeexpansionasapercentageof theoriginaldiameter, D; e) angleoftheconicalmandrel; f) resultofthetest. ENISO8493:2004BS EN ISO 8493:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Stan
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