EN10025-2004结构钢

EuropeanstructuralsteelstandardEN10025:2004CorusConstruction&IndustrialExplanationandcomparisontopreviousstandards2EuropeanstructuralsteelstandardEN10025:2004IntroductionEN10025:2004isthenewEuropeanstandardforstructuralsteel.EN10025:2004isthenewEuropeanstandardforstructuralsteel.Thisleafletshowsthenewgrades,propertiesandthenearestequivalentgradesfromformerstandardsincludingEN10025:1993.Thegradedesignationsystemisalsoexplained.Corusproducesaverywiderangeofrolledsectionsandplatesandtheinformationbelowhasbeenpreparedtoshowhowthenewstandardappliestotheseproducts.Forinformationonthesizerangesavailablepleasering+44(0)1724404400andaskfor‘Plateproductsrangeofsizes’forplateandplatecutfromcoil,or‘StructuralsectionstoBS4part1’forrolledsections.HistoryofthestandardTheEuropeanCommitteeforIronandSteelStandardisationisresponsibleforproducingtheEuropeanStandards(ENs)forstructuralsteels.Thefirstofthesestandards,EN10025,waspublishedintheUKbyBSIasEN10025:1990,partlysupersedingBS4360:1986,whichwasre-issuedasBS4360:1990.In1993,asecondeditionofEN10025wasmadeavailabletogetherwithEN10113:parts1,2&3andEN10155.InJune1994,EN10210:part1waspublishedandatthesametimeBS4360wasofficiallywithdrawn.ThebalanceoftheBS4360steelsnotaffectedbytheseENswerere-issuedinnewBritishStandardsBS7613andBS7668.In1996,withthepublicationofEN10137,BS7613waswithdrawn.BS7668willremainuntilanENforatmosphericcorrosionresistanthollowsectionsisavailable.In2004thestandardEN10025wasrevisedtoaddresstheprovisionsofEUConstructionProductsDirective(89/106/EEC).Itisnowpublishedinsixpartstobringtogetheralmostallthe‘StructuralMetallicProducts’intoonecomprehensivestandard.ThenewstandardEN10025:2004Thenewstandardispublishedinsixpartsanddrawstogetherearlierstandardstoproduceonestandardforthemajorityofstructuralsteelproducts.Thepartsare:•Part1-Generaltechnicaldeliveryconditions.•Part2-Technicaldeliveryconditionsfornon-alloystructuralsteels.SupersedesEN10025:1993•Part3-Technicaldeliveryconditionsfornormalised/normalisedrolledweldablefinegrainstructuralsteels.SupersedesEN10113:parts1&2:1993•Part4-Technicaldeliveryconditionsforthermomechanicallyrolledweldablefinegrainstructuralsteels.SupersedesEN10113:parts1&3:1993•Part5-Technicaldeliveryconditionsforstructuralsteelswithimprovedatmosphericcorrosionresistance-alsoknownasweatheringsteels.SupersedesEN10155:1993•Part6-Technicaldeliveryconditionsforflatproductsofhighyieldstrengthstructuralsteelsinthequenchedandtemperedcondition.SupersedesEN10137:parts1&2:1996EuropeanstructuralsteelstandardEN10025:20043GradedesignationsystemsThedesignationsystemsusedinthenewstandardaresimilarbutnotidenticaltoEN10025:1993andverydifferenttothefamiliarBS4360designationssotheguidebelowhasbeenpreparedtoassistpurchasers,specifiers,designersandusersofsteel.SymbolsusedinEN10025:part2:2004Non-alloystructuralsteelsS...StructuralsteelE...Engineeringsteel.235...Minimumyieldstrength(Reh)inMPa@16mm...JR..LongitudinalCharpyV-notchimpacts27J@+20°C...J0..LongitudinalCharpyV-notchimpacts27J@0°C...J2..LongitudinalCharpyV-notchimpacts27J@-20°C...K2..LongitudinalCharpyV-notchimpacts40J@-20°C...+ARSupplyconditionasrolled...+NSupplyconditionnormalisedornormalisedrolledCustomeroptions...C..Gradesuitableforcoldforming...Z..GradewithimprovedpropertiesperpendiculartothesurfaceExamples:S235JR+AR,S355K2C+NSymbolsusedinEN10025:part3:2004Normalised/normalisedrolledweldablefinegrainstructuralsteelsS...Structuralsteel.275...Minimumyieldstrength(Reh)inMPa@16mm...N..LongitudinalCharpyV-notchimpactsatatemperaturenotlowerthan-20°C...NL..LongitudinalCharpyV-notchimpactsatatemperaturenotlowerthan-50°CCustomeroptions...Z..GradewithimprovedpropertiesperpendiculartothesurfaceExamples:S275N,S420NLZ35SymbolsusedinEN10025:part4:2004ThermomechanicallyrolledweldablefinegrainstructuralsteelsS...Structuralsteel.275...Minimumyieldstrength(Reh)inMPa@16mm...M..LongitudinalCharpyV-notchimpactsatatemperaturenotlowerthan-20°C...ML..LongitudinalCharpyV-notchimpactsatatemperaturenotlowerthan-50°CCustomeroptions...Z..GradewithimprovedpropertiesperpendiculartothesurfaceExamples:S355M,S460MLZ25GradedesignationsystemsDesignandtechnicaladviceisavailablefromourTechnicalSales&Marketingdepartment.4EuropeanstructuralsteelstandardEN10025:2004GradedesignationsystemsSymbolsusedinEN10025:part5:2004Structuralsteelswithimprovedatmosphericcorrosionresistance–alsoknownasweatheringsteelsS...Structuralsteel.355...Minimumyieldstrength(Reh)inMPa@16mm...J0..LongitudinalCharpyV-notchimpacts27J@0°C...J2..LongitudinalCharpyV-notchimpacts27J@-20°C...K2..LongitudinalCharpyV-notchimpacts40J@-20°C...W..Improvedatmosphericcorrosionresistance...P..Greaterphosphoruscontent(gradeS355only)...+ARSupplyconditionasrolled...+NSupplyconditionnormalisedornormalisedrolledCustomeroptions...Z..GradewithimprovedpropertiesperpendiculartothesurfaceExamples:S235J0W+AR,S355K2W+NZ25SymbolsusedinEN10025:part6:2004FlatproductsofhighyieldstrengthstructuralsteelsinthequenchedandtemperedconditionS...Structuralsteel.460...Minimumyieldstrength(Reh)inMPa@16mm...Q..Lo