1、BRITISH STANDARD BS EN 10297-1:2003 Incorporating Corrigendum No. 1 Seamless circular steel tubes for mechanical and general engineering purposes Technical delivery conditions Part 1: Non-alloy and alloy steel tubes The European Standard EN 10297-1:2003 has the status of a British Standard ICS 77.14
2、0.75 BS EN 10297-1:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 18 February 2003 BSI 6 August 2003 ISBN 0 580 41282 2 National foreword This British Standard is the official English language version of EN 10297-1:2003. It supersedes B
3、S 6323-3:1982 which is withdrawn. Together with BS EN 10305-1, BS EN 10305-2, BS EN 10305-3, BS EN 10305-4, BS EN 10305-5 and BS EN 10305-6, BS EN 10296-1 and BS EN 10296-2, it will also supersede BS 6323-1:1982, which will be withdrawn upon publication of all the standards in the series. The UK par
4、ticipation in its preparation was entrusted to Technical Committee ISE/8, Steel pipes, 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 which implement international or European
5、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 purport to include all th
6、e 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 committee any enquiries on th
7、e 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 page, pages 2 to 43 and a back cover. The
8、BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments 14629 Corr No. 1 6 August 2003 Correction to supersession details in the national forewordEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN102971 Febr
9、uary2003 ICS77.140.75 Englishversion Seamlesscircularsteeltubesformechanicalandgeneral engineeringpurposesTechnicaldeliveryconditionsPart1: Nonalloyandalloysteeltubes Tubessanssoudureenacierpourutilisationenmcanique gnraleetenconstructionmcaniqueConditions techniquesdelivraisonPartie1:Tubesenacierno
10、nalli etalli NahtlosekreisfrmigeStahlrohrefrdenMaschinenbau undallgemeinetechnischeAnwendungenTechnische LieferbedingungenTeil1:Rohreausunlegiertenund legiertenSthlen ThisEuropeanStandardwasapprovedbyCENon16October2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatethe
11、conditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German
12、).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ir
13、eland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymea
14、nsreserved worldwideforCENnationalMembers. Ref.No.EN102971:2003EEN102971:2003(E) 2 Contents page Foreword4 1 Scope 5 2 Normativereferences 5 3 Termsanddefinitions. .6 4 Symbols 7 5 Classificationanddesignation .7 5.1 Classification7 5.2 Designation.7 6 Informationtobesuppliedbythepurchaser. .8 6.1 M
15、andatoryinformation . .8 6.2 Options9 6.3 Exampleofanorder. 9 7 Manufacturingprocess . 10 7.1 Steelmakingprocess . 10 7.2 Deoxidationprocess. .10 7.3 Tubemanufactureanddeliveryconditions 10 8 Requirements .12 8.1 General12 8.2 Chemicalcomposition .12 8.3 Mechanicalproperties . 15 8.4 Hardnessrequire
16、ments. 22 8.5 Hardenability 22 8.6 Appearanceandsoundness .23 8.7 Straightness .23 8.8 Endpreparation. .23 8.9 Dimensions,masses,tolerancesandsectionalproperties 2 3 9 Inspection .27 9.1 Typesofinspection . 27 9.2 Inspectiondocuments .27 9.3 Summaryofinspectionandtesting. 28 10 Sampling .29 10.1 Fre
17、quencyoftests . 29 10.2 Preparationofsamplesandtestpieces . .30 11 Testmethods. .31 11.1 Tensiletest . 31 11.2 Impacttest 31 11.3 Hardenabilitytest. 32 11.4 Hardnesstest .32 11.5 Leaktightnesstest .32 11.6 Nondestructivetesting .33 11.7 Dimensionalinspection. 33 11.8 Visualexamination. 33 11.9 Mater
18、ialidentification 33 11.10 Retests,sortingandreprocessing. 33 12 Marking .33EN102971:2003(E) 3 13 Protection .34 AnnexA (normative) Steelsforcasehardening 3 5 AnnexB (informative) Recommendedheattreatmenttemperatures 36 AnnexC (normative) Hardnessrequirementsforheattreatedtubes38 AnnexD (normative)
19、HardenabilityLimitingvaluesforCscaleRockwell .39 AnnexE (normative) Formulaeforcalculationofnominalsectionproperties.42 Bibliography 43EN102971:2003(E) 4 Foreword Thisdocument(EN102971:2003)hasbeenpreparedbyTechnicalCommitteeECISS/TC29,“Steeltubesand fittingsforsteeltubes“thesecretariatofwhichisheld
20、byUNI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. InthisEuropeanStandardtheannexesA,C,DandEarenormativeandannexBisinformative. Anoth
21、erPartofEN10297incourseofpreparationis: Part2: Stainlesssteeltubes AnotherEuropeanStandardseriescoveringweldedtubesformechanicalandgeneralengineeringpurposesis currentlybeingprepared. prEN10296, WeldedcircularsteeltubesformechanicalandgeneralengineeringpurposesTechnicaldelivery conditions. OtherEuro
22、peanStandardseriesbeingpreparedinthisareaareprEN10294forhollowbarsformachiningand prEN10305forsteeltubesforprecisionapplications. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepubli
23、c,Denmark,Finland, France,Germany,Greece,HungaryIceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN102971:2003(E) 5 1Scope ThisPartofEN10297specifiesthetechnicaldeliveryconditionsforseamlesscirculartubesmadeofnonalloyand alloyst
24、eelsformechanicalandgeneralengineeringpurposes. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendment
25、stoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN100021, MetallicmaterialsTensiletestingPart1:Methodoftestatambienttemperature. EN10020, Defin
26、itionandclassificationofgradesofsteel. EN10021, Generaltechnicaldeliveryrequirementsforsteelandironproducts. EN100271, DesignationsystemsforsteelPart1:Steelnames,principalsymbols. EN100272, DesignationsystemsforsteelPart2:Numericalsystem. EN100451, MetallicmaterialsCharpyImpacttestPart1:Testmethod.
27、EN10052, Vocabularyofheattreatmenttermsforferrousproducts . prEN10168, IronandsteelproductsInspectiondocumentsListofinformationanddescription . EN10204, MetallicproductsTypesofinspectiondocuments. EN10220, SeamlessandweldedsteeltubesGeneraltablesofdimensionsandmassesperunitlength. EN102461, Nondestr
28、uctivetestingofsteeltubesPart1:Automaticelectromagnetictestingofseamlessand welded(exceptsubmergedarcwelded)ferromagneticsteeltubesforverificationofhydraulicleaktightness . EN102463, NondestructivetestingofsteeltubesPart3:Automaticeddycurrenttestingofseamlessand welded(exceptsubmergedarcwelded)steel
29、tubesforthedetectionofimperfections. EN102465, NondestructivetestingofsteeltubesPart5:Automaticfullperipheralmagnetictransducer/flux leakagetestingofseamlessandwelded(exceptsubmergedarcwelded)ferromagneticsteeltubesforthedetection oflongitudinalimperfections . EN102467,Nondestructivetestingofsteeltu
30、besPart7:Automaticfullperipheralultrasonictestingof seamlessandwelded(exceptsubmergedarcwelded)steeltubesforthedetectionoflongitudinalimperfections. EN10256, NondestructivetestingofsteeltubesQualificationandcompetenceoflevel1and2nondestructive testingpersonnel. CR10260:1998, Designationsystemsforste
31、elAdditionalsymbols. prEN10266,Steeltubes,fittingsandstructuralhollowsectionsSymbolsanddefinitionoftermsforusein productstandards. ENISO377,SteelandsteelproductsLocationandpreparationofsamplesandtestpiecesformechanical testing(ISO377:1997).EN102971:2003(E) 6 ENISO642, Steel Hardenabilitytestbyendque
32、nching(Jominytest)(ISO642:1999). ENISO25661, Steel Conversionofelongationvalues Part1:Carbonandlowalloysteels (ISO25661:1984). ENISO65061, MetallicmaterialsBrinellhardnesstestPart1:Testmethod(ISO65061:1999). ENISO65081:1999, MetallicmaterialsRockwellhardnesstestPart1:Testmethod(scalesA,B,C,D,E,F, G,
33、H,K,N,T)(ISO65081:1999). EURONORM103, Micrographdeterminationoftheferriticorausteniticgrainsizeofsteels . 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thetermsanddefinitionsgiveninEN10020,EN10021,EN10052 andprEN10266andthefollowingtermsanddefinitionsapply. 3.1 finegrainsteel steelhavin
34、ganaustenitic/ferriticgrainsizeequaltoorfinerthan6whenmeasuredinaccordancewith EURONORM103 3.2 normalizingrolling arollingprocessinwhichthefinaldeformationiscarriedoutinacertaintemperaturerangeleadingtoamaterial conditionequivalenttothatobtainedafternormalizingsothatthespecifiedvaluesofthemechanical
35、propertiesare retainedevenafternormalizing(+N) NOTE Deliveryconditionoftubesmanufacturedbyanormalizingrollingprocessornormalizedbyheattreatmentina furnacearebothidentifiedwiththesamesymbol. 3.3 asrolled formedafterheatingintotheausteniticregion(i.e.aboveAC3)withoutsubsequentheattreatment(+AR) 3.4 an
36、nealing heattreatmentatatemperatureslightlybelowAC1(+A) 3.5 THtreatment heattreatmentwiththeobjectofachievingahardnesswithinaspecifiedrange(+TH) 3.6 FPtreatment heattreatmentwiththeobjectofproducingaferriticandpearliticstructureandachievingahardnesswithina specifiedrange(+FP) 3.7 employer organizati
37、onforwhichthepersonworksonaregularbasis NOTE Theemployermaybeeitherthetubemanufacturerorathirdpartyorganizationprovidingnondestructivetesting (NDT)services.EN102971:2003(E) 7 4Symbols SeeprEN10266andCR10260. 5 Classificationanddesignation 5.1Classification InaccordancewithEN10020thegradesinTables3,4
38、5,6andA1areclassifiedasgiveninTable1. 5.2Designation FortubescoveredbythisPartofthisEuropeanStandardthesteeldesignationconsistsof: thenumberofthisPartofthisEuropeanStandard(EN102971); pluseither: thesteelnameinaccordancewithEN100271andCR10260; or thesteelnumberallocatedinaccordancewithEN100272. The
39、searegiveninTable1.EN102971:2003(E) 8 Table1Classificationofsteelgradesanddeliverycondition Steelgrade Steelname Steelnumber Normaldelivery condition a Classificationinaccordance withEN10020 E235 E275 E315 E355 1.0308 1.0225 1.0236 1.0580 +AR or +N E470 1.0536 +AR Nonalloyqualitysteel E275K2 E420J2
40、E355K2 1.0456 1.0599 1.0920 +N Alloyqualitysteel E460K2 1.8891 +N Alloyspecialsteel E590K2 1.0644 +QT Nonalloyspecialsteel E730K2 1.8893 +QT Alloyspecialsteel C22E 1.1151 C35E 1.1181 C45E 1.1191 C60E 1.1221 38Mn6 1.1127 +Nor+QT Nonalloyspecialsteel 41Cr4 1.7035 25CrMo4 1.7218 30CrMo4 1.7216 34CrMo4
41、1.7220 42CrMo4 1.7225 36CrNiMo4 1.6511 30CrNiMo8 1.6580 41NiCrMo732 1.6563 +QT Alloyspecialsteel C10E 1.1121 C15E 1.1141 C15R 1.1140 Nonalloyspecialsteel 16MnCr5 1.7131 16MnCrS5 1.7139 20NiCrMo22 1.6523 20NiCrMoS22 1.6526 +A,+TH,+FP,+N Alloyspecialsteel a Atthediscretionofthemanufacturer,thetubemayb
42、ecoldfinished.Thetubeshallthenbeannealedor normalized,toachievetherequiredproperties. 6 Informationtobesuppliedbythepurchaser 6.1 Mandatoryinformation Thefollowinginformationshallbesuppliedbythepurchaseratthetimeofenquiryandorder: 1) thequantity(massortotallengthornumber); 2) theterm“tube“;EN102971:
43、2003(E) 9 3) thedimensions(outsidediameter,wallthickness)(see8.9.1); 4) thedesignationaccordingtothisPartofthisEuropeanStandard(see5.2); 5) thedeliverycondition(see7.3.1). 6.2Options AnumberofoptionsarespecifiedinthisPartofthisEuropeanStandard,andarelistedasfollowswithappropriate clausereferences.In
44、theeventthatthepurchaserdoesnotindicatehiswishtoimplementanyoftheseoptionsat thetimeofenquiryandorderthetubeshallbesuppliedinaccordancewiththebasicspecification(See6.1). 1)Descaling (see 7.3.1); 2) tensiletestonsampleincondition+N(see8.3.2); 3) tensiletestonsampleincondition+QT(see8.3.3); 4) tensiletest(see8.3.4); 5) impactenergyvaluesofTable13(see8.3.5); 6) hardnessrange
