GB_T3077-1999英文版

1of24NationalStandardofP.R.CGB/T3077—1999AlloyStructureSteelsPublishedon1999-11-01Implementedon2000-08-01PublishedbyNationalQuality&TechnicalSupervisionBureau2of24GB/T3077—1999PrefaceThisstandardhasrevisedtheGB/T3077―1988AlloyStructureSteelTechnicalConditions.Thisstandardhasrevisedthefollowingcontent:―Thenameofthestandardischangedinto“AlloyStructureSteel”;―Throughmutualnegotiation,rodslargerthan250mmcanbesupplied;―Thechapter“Ordercontent”hasbeenadded;―TheunifiednumeralcodeforsigncodeandbrandNo.ofthesteelproductshasbeenadded;―FivebrandNo.including30Mn2MoW,20Mn2B,20SiMnVB,20Cr3MoWVAand20CrVhavebeendeletedandourselfmanufactured18CrMnNiMoAhasbeenadded;―ThestipulatedresidualMocontentupperlimithasbeenadded;―Provision3.1.1.3,3.1.1.5,3.5.2.1and3.5.2.2havebeendeleted;―ProperadjustmenthasbeenmadetothehotprocessingtechniquesinChart3andsomebrandNo.hotprocessingparameters.ThisstandardwillreplaceGB/T3077―1988AlloyStructureSteelTechnicalConditionssinceitsexecution.ThisstandardwasraisedbyStateMetallurgicalIndustrialBureau.ThisstandardisunderthejurisdictionofStateSteelStandardizationTechnicalCommittee.MaindraftingunitsforthisstandardincludeDayeSpecialSteelShareholdingCo.,Ltd,InformationStandardResearchInstituteoftheStateMetallurgicalMinistryandShanghaiSteel(GROUP)Co.,Ltd.MaindraftersofthisstandardincludeFangJun,LiuWende,LuanYan,HanGuoliangandChenChangxi.ThisstandardwaspublishedinMay1982forthefirsttimeandrevisedinFebruary1988forthefirsttime.3of24NationalStandardofP.R.CAlloyStructureSteelsGB/T3077—1999ReplaceGB/T3077—19881Scope:Thisstandardhasstipulatedthefollowingcontentconcerninghot-rolledandwroughtalloystructuresteel:size,appearance,weight,permitteddeviation,technicalrequirements,testingmethod,inspectionregulation,package,signandqualitycertificate.Thisstandardappliestoalloystructuresteelrodwhosediameterorthicknessisnolargerthan250mm.Throughmutualnegotiation,alloystructuresteelrodwhosediameterorthicknessislargerthan250mmcanalsobesupplied.ThechemicalcomponentofstipulatedbrandNo.inthisstandardisalsoapplicabletosteelingot,steelbilletandmanufacturedproducts.2QuotedStandard:Theregulationsincludedinthefollowingstandardconstitutetheregulationsofthisstandardthroughtheirbeingquotedhere.Whenthisstandardispublished,alltheeditionsshouldbedeemedeffective.Sinceallofthestandardsshouldberevised,variouspartiesshoulddiscussthepossibilityofadoptingthelatesteditionsofthefollowingstandardswhentheydecidetousethisstandard.GB/T222―1984SamplingMethodforSampleUsedforSteelChemicalAnalysis&PermittedDeviationofFinishedProductsChemicalComponentGB/T224―1984DecarbonizationLayerDepthTestingMethodofSteelGB/T225―1988EndQuenchingTestingMethodofSteelGB/T226―1991InspectionMethodofLPStructure&IndicationAcidCorrosionofSteelGB/T228―1987MetalStretchingTestingGB/T229―1994ShockTestingMethodofMetalXiabiBreachGB/T231―1984MetalBHTestingMethodGB/T233―1982MetalSwageTestingMethodGB/T702―1986Size,Appearance,Weight&PermittedDeviationofHot-rolledRoundSteel&SquareSteelGB/T908―1987Size,Appearance,Weight&PermittedDeviationofWroughtRoundSteel&SquareSteelGB/T1979―1980IndicationEvaluationChartofStructureSteelLPStructureGB/T2101―1989OrdinaryStipulationsofCheckup,Package,Sign&QualityCertificateofSectionSteelGB/T2975―1998MechanicalPropertySamplingPosition&SamplePreparationofSteel&SteelProductsGB/T4336―1984PhotoelectricSpectrumAnalysisMethodofCarbonSteel&Low&MediumAlloySteelGB/T6397―1986MetalStretchingTestingGB/T7736―1987UltrasonicInspectionMethodofLPStructure&IndicationofSteelGB/T10561―1989MicroscopeEvaluationMethodofNon-metalSundryinSteelGB/T13299―1991Micro-organismEvaluationMethodofSteelGB/T15711―1995PagodaHairlineAcidSoakingInspectionMethodofSteel4of24GB/T17505—1998OrdinaryTechnicalRequirementsforSteel&SteelProductsDeliveryGB/T17616―1998UnifiedNumeralCodeofSteel&AlloyProductBrandNo.YB/T5148―1993AverageMetalGrainSizeTestingMethodPleaseseeattachmentA(standardattachment)formoredetailsconcerningquotedstandardsofchemicalanalysisofvariouselements.3OrderContent:Theorderedcontractorlistaccordingtothisstandardshouldcontainthefollowingcontent:a)StandardserialNo.;b)Productname;c)BrandNo.orunifiednumeralcode;d)Controlledresidualelements(see6.1.1.2ifrequired);e)Deliveryweight(quantity);f)Size&appearance;g)Processingmethod;h)Deliverystatus;i)Deliveryathotprocessingcondition(see6.4ifrequired);j)HotSwage(see6.7ifrequired);k)Decarbonizationlayer(see6.8ifrequired);l)Non-metalsundrymatters(see6.9ifrequired);m)Particularrequirements(see6.10ifrequired).4Classification&Code:4.1Steelshouldbedividedintothefollowingthreetypesaccordingtometallurgicalquality:1)Highqualitysteel;2)Seniorhighqualitysteel(“A“addedtobrandNo.);3)Extremelyhighqualitysteel(“E”addedtobrandNo.).4.2Steelshouldbedividedintothefollowingtwotypesaccordingtouseandprocessingpurposes.Theuse&processingmethodshouldbeclearlystipulatedinthecontract.Asfortheunmentionedcondition,thesteelshouldbeviewedascuttingprocessedsteel.1)UP(steelusedinpressuremanufacture)①UHP(steelusedinhotpressuremanufacture)②UF(steelusedinforging)③UCD(colddrownbillet)2)UC(us