1、BRITISH STANDARD BS EN 10089:2002 Hot rolled steels for quenched and tempered springs Technical delivery conditions The European Standard EN 10089:2002 has the status of a British Standard ICS 77.140.25 BS EN 10089:2002 This British Standard, having been prepared under the direction of the Engineeri
2、ng Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 18 December 2002 BSI 18 December 2002 ISBN 0 580 41002 1 National foreword This British Standard is the official English language version of EN 10089:2002. It supersedes BS 97
3、0-2:1988 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/31, Wrought steels, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards
4、 which 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 pub
5、lication 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 internati
6、onal/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 title
7、 page, pages 2 to 33 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10089 December2002 ICS77.140.25 Englishversion Hotrolledste
8、elsforquenchedandtemperedspringsTechnical deliveryconditions Acierslaminschaudpourressortstrempsetrevenus Conditionstechniquesdelivraison WarmgewalzteSthlefrvergtbareFedernTechnische Lieferbedingungen ThisEuropeanStandardwasapprovedbyCENon1November2002. CENmembersareboundtocomplywiththeCEN/CENELECIn
9、ternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeoffi
10、cialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,
11、Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinany
12、formandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN10089:2002EEN10089:2002(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .5 4 Classificationanddesignation .5 4.1 Classification5 4.2 Designation.5 5 Informationtobesuppliedbythepurchaser. .6 5.1
13、Mandatoryinformation . .6 5.2 Options6 6 Manufacturingprocess . 7 6.1 General7 6.2 Deoxidation.7 6.3 Heattreatmentandsurfaceconditionatdelivery 7 7 Requirements .7 7.1 Chemicalcomposition,hardnessandhardenability 7 7.2 Shearability.8 7.3 Structure .8 7.4 Internalsoundness 8 7.5 Surfacequalityanddeca
14、rburisation. .8 7.6 Dimensions,tolerancesondimensionsandshape .8 8 Inspectionandtesting .8 8.1 Typesandcontentsofinspectiondocuments .8 8.2 Specificinspectionandtesting. .9 9 Marking .10 AnnexA (normative) Supplementaryorspecialrequirements 29 A.1 Contentofnonmetallicinclusions 29 A.2 Nondestructive
15、testing. 29 A.3 Productanalysis 29 A.4 Specialagreementsformarking 29 AnnexB (informative) Maximumdimensionsforroundsandflatsbasedonthe100%hardenability scatterband(seeTable7) 30 AnnexC (informative) DimensionalstandardsapplicabletoproductscomplyingwiththisEuropean Standard31 AnnexD (informative) Gu
16、idancevaluesforthemechanicalpropertiesofquenchedandtemperedtest pieces(maximumdimensionsasgiveninTable5) .32 Bibliography 33EN10089:2002(E) 3 Foreword Thisdocument(EN10089:2002)hasbeenpreparedbyTechnicalCommitteeECISS/TC23,“Steelsforheat treatment,alloysteelsandfreecuttingsteelsQualitiesanddimension
17、s“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby June2003. InthisEuropeanStandardannexAisnormativeandannexesB,CandD
18、areinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,
19、 Sweden,SwitzerlandandtheUnitedKingdom.EN10089:2002(E) 4 1Scope 1.1 ThisEuropeanStandardspecifiesthetechnicaldeliveryrequirementsforroundandflatbars,ribbedand groovedbarsandrodmanufacturedfromthealloysteelslistedinTable 3,intendedforhotformedand subsequentlyheattreatedspringsorcoldformedandsubsequen
20、tlyheattreatedsprings.Theproductsare suppliedinoneoftheheattreatmentconditionsgivenforthedifferenttypesofproductsinTable1,lines2to6,and inoneofthesurfaceconditionsgiveninTable2. 1.2 Inspecialcases,variationsinthesetechnicaldeliveryrequirementsoradditionstothemmayformthe subjectofanagreementatthetime
21、ofenquiryandorder(seeannexA). 1.3 InadditiontothespecificationsofthisEuropeanStandard,thegeneraltechnicaldeliveryrequirementsof EN10021areapplicable. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedatthe
22、appropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendm
23、ents). EN10020, Definitionandclassificationofgradesofsteel . EN10021, Generaltechnicaldeliveryrequirementsforsteelandironproducts . EN100271, DesignationsystemsforsteelPart1:Steelnames,principalsymbols . EN100272, DesignationsystemsforsteelPart2:Numericalsystem . EN10052, Vocabularyofheattreatmentte
24、rmsforferrousproducts . EN10079, Definitionofsteelproducts . EN10204, MetallicproductsTypesofinspectiondocuments. EN10221, SurfacequalityclassesforhotrolledbarsandrodsTechnicaldeliveryconditions . ENISO377, SteelandsteelproductsLocationandpreparationofsamplesandtestpiecesformechanical testing(ISO377
25、:1997). ENISO642, SteelHardenabilitytestbyendquenching(Jominytest)(ISO642:1999). ENISO65061, MetallicmaterialsBrinellhardnesstestPart1:Testmethod(ISO65061:1999). ENISO65081, MetallicmaterialsRockwellhardnesstestPart1:Testmethod(scalesA,B,C,D,E,F,G,H, K,N,T)(ISO65081:1999). ENISO 14284, Steelandiron
26、Samplingandpreparationofsamplesforthedeterminationofchemical composition (ISO14284:1996) CR10260, DesignationsystemsforsteelsAdditionalsymbols . CR10261, ECISSInformationCircular11 IronandsteelReviewofavailablemethodsofchemicalanalysis .EN10089:2002(E) 5 EURONORM103 1) , Microscopicdeterminationofth
27、eferriticorausteniticgrainsizeofsteels . EURONORM104 1) , Determinationofthedepthofdecarburizationofnonalloyandlowalloystructuralsteels . 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermanddefinitionapplyinadditiontothetermsand definitionsgiveninEN10020,EN10052,EN10079,ENI
28、SO377andENISO14284. 3.1 springsteels materialswhichare,becauseoftheirpropertiesinthequenchedandtemperedcondition,particularlysuitablefor themanufactureofspringlikecomponentsofallkinds.Theresilienceofthesteelsdependsontheirelastic deformability,whichenablesthemtosustainloadingwithinagivenrangewithout
29、exhibitinganypermanent deformationwhentheloadisremoved.Thepropertiesrequiredofthesteelsforspringsareobtainedbyhigher carboncontentsandalloyingconstituentssuchassilicon,manganese,chromium,molybdenumandvanadium,and alsobyheattreatment,i.e.hardeningwithsubsequenttempering. 4 Classificationanddesignatio
30、n 4.1Classification AllsteelscoveredbythisEuropeanStandardareclassifiedasalloyspecialsteelsaccordingtoEN10020. 4.2Designation 4.2.1 Steelnames ForthesteelgradescoveredbythisEuropeanStandard,thesteelnamesasgivenintherelevanttablesare allocatedinaccordancewithEN100271andCR10260. 4.2.2 Steelnumbers For
31、thesteelgradescoveredbythisEuropeanStandard,thesteelnumbersasgivenintherelevanttablesare allocatedinaccordancewithEN100272. 1) Itmaybeagreedatthetimeofordering,untiltheseEURONORMShavebeenadoptedasEuropeanStandard, thattheseEURONORMSorthecorrespondingnationalstandardsshouldbeapplied.EN10089:2002(E) 6
32、 5 Informationtobesuppliedbythepurchaser 5.1 Mandatoryinformation Thefollowinginformationshallbesuppliedbythepurchaseratthetimeofenquiryandorder: a) thequantitytobedelivered; b) thedesignationoftheproductform(e.g.roundorsquare); c) thenumberofthedimensionalstandard; d) thedimensionsandtolerancesondi
33、mensionsandshapeand,ifapplicable,lettersdenotingrelevantspecial tolerances; e) thenumberofthisEuropeanStandard(EN10089); f) steelnameorsteelnumber(see4.2); g) ifappropriate,thesymbolfortheheattreatmentconditionatdelivery(see6.3.1,6.3.2andTable1); h) ifappropriate,thesymbolforthesurfaceconditionatdel
34、ivery(see6.3.3andTable2); i) ifrequired,thetypeofinspectiondocumentinaccordancewithEN1 0204(see8.1). EXAMPLE 20roundsprEN1006020 8000 EN1008951CrV4+A EN102043.1.B or 20roundsprEN1006020 8000 EN100891.8159+A EN102043.1.B 5.2Options AnumberofoptionsarespecifiedinthisEuropeanStandardandlistedbelow.Ifth
35、epurchaserdoesnotindicate hiswishtoimplementoneoftheseoptions,thesuppliershallsupplyinaccordancewiththebasisspecificationof thisEuropeanStandard(see5.1). a) anyrequirementconcerninggrainsize(see7.3and8.2.3); b) anyrequirementconcerningnonmetallicinclusioncontent(see7.3.2andclauseA.1); c) anyrequirem
36、entforinternalsoundness(see7.4andclauseA.2); d) anyrequirementrelatingtosurfacequality(see7.5.2); e) anyrequirementrelatingtoremovalofsurfacedefects(see7.5.4); f) anyrequirementconcerningspecialmarkingoftheproducts(seeclauses9andA.4); g) anyverificationoftheproductanalysis(seeTable10andclauseA.3).EN
37、10089:2002(E) 7 6 Manufacturingprocess 6.1General Themanufacturingprocessofthesteelandoftheproductsislefttothediscretionofthemanufacturerwiththe restrictionsgivenbytherequirementsin6.2and6.3. 6.2Deoxidation Allsteelsshallbefullykilled. 6.3 Heattreatmentandsurfaceconditionatdelivery 6.3.1 Normalcondi
38、tionatdelivery Unlessotherwiseagreedatthetimeofenquiryandorder,theproductsshallbedeliveredintheuntreated,i.e.as rolled,condition. 6.3.2 Particularheattreatmentcondition Ifsoagreedatthetimeofenquiryandorder,theproductsshallbedeliveredinoneoftheheattreatmentconditions giveninTable1,lines3to6. 6.3.3Par
39、ticular surface condition Ifsoagreedatthetimeofenquiryandorder,theproductsshallbedeliveredinoneoftheparticularsurface conditionsgiveninTable2,lines3to6. 6.3.4 Castseparation Thesteelsshallbedeliveredseparatedbycasts. 7Requirements 7.1 Chemicalcomposition,hardnessandhardenability 7.1.1 Table1givesasu
40、rveyofcombinationsofusualheattreatmentconditionsatdelivery,productformsand requirementsaccordingtoTables3to8(chemicalcomposition,maximumdimensionsforaminimumcore hardness,hardenability,maximumhardness). 7.1.2 Wherethesteelisnotorderedaccordingtocorehardnessorrestrictedhardenabilityrequirements,i.e.
41、wherethesteeltypedesignationsofTable3,Table6orTable7andnotthedesignationsgiveninTable5or Table8areapplied,therequirementsforchemicalcomposition,hardenabilityandmaximumhardnesscitedin Table1,(column5)applyasappropriate,fortheparticularheattreatmentcondition. 7.1.3 Wherethesteelis,byusingthedesignatio
42、nsgiveninTable 5,orderedaccordingtocorehardness requirements,thevaluesofcorehardenabilitygiveninTable5orTableB.1apply,inadditiontotherequirements citedinTable1,columns5(1)and5(2).Inthiscase,thevaluesofendquenchhardenabilitygiveninTable7or Table8areforguidancepurposesonly. NOTE Themaximumdimensionsgi
43、veninTable5correspondtotherestrictedhardenabilityscatterbandaccordingto Table8.Forsmallersizes(TableB.1)thenormalhardenabilityscatterbandaccordingtoTable7canbesufficient. 7.1.4 Wherethesteelis,byusingthedesignationsgiveninTable8,orderedaccordingtorestrictedhardenability requirements,thevaluesofrestrictedhardenabilitygiveninTable8apply,inadditiontotherequirementscitedin Table1,columns5(1)and5(2).EN10089:2002(E) 8 7.2Shearability Undersuitableshearingconditions(avoidingl
