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1、INTERNATIONA1.STANDARDISO2566-2editionSecond2021-12Stee1.Conversionofe1.ongationva1.ues一网电朝iticstee1.sAcierConversiondesVa1.eUrSd1.a1.1.on(fement一Partie2:Aciersaustni1.iquesReferencenumberISO256622021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InPSd1.Mc;GeatrOn1.fifiU81.a
2、ndonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥曲ite：图洲跳触OQrgPub1.ishedinSwitzer1.andContentsForewordivIntroductionv2 Scope13 Normativereferences1Terms,definitionsandsymbo1.s13.1 Termsanddef1.ations14 32Symbo1.s25 Basicformu1.a26 RfHM那皆b解Ert1.onaIgauge1.engthtoanotherproportiona1.gauge8 联盟搬t悯;脚歌济。褥
3、蜘田懒懒(B*hernon；PrO西田Ona1.-39 gauge1.engthfortestpiecesofdifferentcross-sectiona1.areas.4Conversionfromaproportiona1.gauge1.engthtoanon*proportiona1.gauge1.ength49.1 Genera1.49.2 Conversionfactorsfromtonon-proportiona1.gauge1.ength426UseofFiguresForewordISO(theInternationa1.OrganizationforStandardizat
4、ion)isawor1.dwidefederationofnationa1.standardsttiugh(ISOm11hnhrmbif1.4mi)冏WCekdWPttf1.PbbGgbOdyII1.tf1.nmmMiibtandrt机tfwvhabgngdimitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.
5、ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare。质F福也槛OfISO/IEC心陶曲催名羸曲槐not龄&礴觎解ftR醵卿IM罚FergCCOrdance、Mhthecdito11a1.ru1.esoftheSOIECDire
6、ctives,Part2(seewww.iso.org/dircc1.ivcs).Rionri颜sd战的小脚蝴橱卿SnS/惬趣吸破砌版科州弧端Xr翻他脚hsubjectofanypatentrightsidentifiedduringthedeve1.opmerUW4iouwMM41.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/patents).Anytradeusedinthisconstitutenameendorsement,documentisinformation
7、givenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsandU明泉加OrRan俱feg悯SaSS忠!S窿inwJ憎ft或OnBar池部Udead焦es地ww.isO.orgiso/foreword.htm1唧柳icaMo/帔吩Va脚痛叫SampF闹懈幕曲痴曲述明JCIa防助。JM98H目明能的仍,把”/EuropeanCommitteeforStandardization(CEN)Technica1.Committe
8、eCEN/TC4S9SC1.rTestmethodsforstee1.(otherthanchemica1.ana1.ysis),inaccordanceWiththeAgreementontechnica1.cooperationbetween【SOandCEN(ViennaAgreement).Thissecondeditioncance1.sandrep1.acesthefirstedition(ISO2566-2:1984),ofwhichitconstitutesaminorrevision.Thechangesareasfo1.1.ows: comp1.eteeditoria1.r
9、evision; Tab1.es2to5havebeenrenamedduetoreorderinginordertofo1.1.owthe1.ogica1.f1.owofinformationofthisdocument; CM加舅SihMibftDrestruauredintofoursub-c1.ausesinordertofo1.1.owthe1.ogica1.f1.owofinformationA1.istofa1.1.partsintheISO2566seriescanhefoundontheISOwebsite.AjWiMbf1.比爆他由暗Is1.ftR1.iusthiscahU
10、用He1.Hbe4Sffinationa1.standardsbody.AIntroductionSevera1.differentgauge1.engthsarep11mon1.yinuseforthedeterminationofpercentagee1.ongationofstee1.sintensi1.etesting.Fixedgave1.engthsof50mm,80mm,100mmand200mmareused;proportiona1.gauge1.engthsOfkSoarea1.sousedforf1.atandroundtestpieces,wherekmaybeoneo
11、fanumberofva1.es1i.e.4;5,65;8,16or11,3Theva1.ue5,6S5isadoptedastheinternationa1.1.ypreferredproportiona1.gauge1.ength.Arisingfromthischoiceandtheexistenceofspecificationsstipu1.atingminimumpercentagee1.ongationsondifferentgauge1.engths,agrowingneedhasbeenevidentforanInternationa1.Standardthatcou1.db
12、einc1.uj!aWsftes三4AWYft三sofAt卵田H&8掰加8福魄1./mmoniy三1.umentgauge1.engthsande1.ongationva1.ues,andfigureswhichmaya1.sobeusedforsuchconversions.Whenusingtheseconversions,however,noteshou1.dbetakenofthe1.imitationsontheirapp1.icabi1.ityasstatedinC1.ause1.ISO2021-A1.1.rightsreservedStee1.Conversionofe1.ong
13、ationva1.ues一闻里里piticstee1.s1 ScopeThisdocumentspecifiesamethodofconvertingroomtemperaturepercentagee1.ongationsafterfractureobtainedonvariousproportiona1.andnon-proportiona1.gauge1.engthstoothergauge1.engths.Formu1.a(1),onwhichconversionsarebased,isconsideredtobere1.iab1.ewhenapp1.iedtoausteniticst
14、ain1.essstee1.swithinthetensi1.estrengthrange450to750N/mmzandintheso1.utiontreatedcondition.Theseconversionsarenotapp1.icab1.eto:a) co1.dreducedstee1.s；b) quenchedandtemperedstee1.s;c) non-austeniticstee1.s.,-Theseconversionsarenotapp1.icab1.ewhenthegauge1.engthexceeds25Sorwherethewidthto2t1.1.iFteffAative钝框超Rdscds20.hereTerms,defiMtibHftra(1.Symbcrtaf1.ocumen1.3.1 TermsanddefinitionsForthepurposesofthisdoment,thefo1.1.owingtermsanddefinitionsapp1.y.ISOandIECmaintaintermino1.ogydatabasesforuseinstandardizationatthefo1.1.owingaddresses：-ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/
