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GB 3280-92 cold rolled stainless steel sheets and plates.pdf

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GB 3280-92 cold rolled stainless steel sheets and plates.pdf

ApprovedbyChinaStateBureauofQualityandTechnicalSupervisiononNovember16th1992EffectiveonJune1st1993Page1of21NationalStandardofthePeoplesRepublicofChinaGB328092SubstituteforGB328084ColdRolledStainlessSteelSheetsandPlates1ContentsandApplicabilityThisstandardspecifiesthedimension,shape,technicalrequirements,testmethod,inspectionrules,packaging,markingandqualitycertificateofcoldrolledstainlesssteelsheetsandplates.Thestandardisapplicabletotheanticorrosivecoldrolledstainlesssteelsheetsandplatesforgeneralpurpose.2NormativeReferencesGB222MethodofsamplingsteelforthedeterminationofchemicalcompositionandpermissiblevariationsforproductanalysisGB226EtchtestformacrostructureanddefectofsteelsGB228MetallicmaterialsTensiletestingGB230MetallicRockwellhardnesstestmethodGB231MetallicmaterialsBrinellhardnesstestmethodGB232MetallicmaterialsBendtestGB247Generalruleofacceptance,package,markandcertificationforsteelplatessheetsandstripsGB708DimensionsshapeweightandtolerancesforcoldrolledplatesandsheetsGB2975SamplingrulesfortestofmechanicalandtechnologicalpropertiesofsteelsGB4334.1Methodof10percentoxalicacidetchtestGB4334.2MethodofferricsulfatesulfuricacidtestGB4334.3Methodof65percentnitricacidtestGB4334.4MethodofnitrichydrofluoricacidtestGB4334.5MethodofcoppersulfatesulfuricacidtestGB4334.6Methodof5percentsulfuricacidtestGB4340MetallicmaterialsVickershardnesstestGB328092Page2of21GB6397MetallicmaterialsTensiletestpieceGB10125CorrosiontestsinartificialatmospheresSaltspraytest3DimensionandShape3.1ThedimensionanditspermissibledeviationsofsteelplateshallbeinaccordancewithrelevantprovisionsinGB708.3.2Theunevennessofsteelplateshallnotbemorethan10mmpermeter.Forcoldhardeningsteelplates,theunevennesspermetershallbeinaccordancewiththeprovisionsinTable1.Table1MaximumPermissibleValueofUnevennessforSteelPlatesinDifferentColdHardeningConditionsUnitmmWidthThicknessMaximumPermissibleValueofUnevennessDYBYY,TY160010000.401319Asagreedbythepurchaserandthemanufacturer10.400.80162210.801922110001219Ø0.40162610.400.80192910.802629Notes7Thevalueslistedinthetableareonlyapplicablefor2Cr13Mn9Ni4and1Cr17Ni7theunevennessofsteelplateswithothergradesindifferentcoldhardeningconditionsshallbeagreeduponbythepurchaserandthemanufacturer.8DY,BY,Y,TYrespectivelymeanslowercoldhardened,semicoldhardened,coldhardenedandextracoldhardenedconditions.4TechnicalRequirements4.1Category,GradeandChemicalComposition4.1.1Thecategory,gradeandchemicalcompositionheatanalysisforsteelsshallbeinaccordancewiththeprovisionssetforthinTable26.4.1.2ThepermissibledeviationsofchemicalcompositionforsteelplatesshallbeinaccordingwiththevaluesgiveninTable3ofGB222.4.2DeliveryConditionsWhenthesteelplatesaresubjecttocoldrolling,heattreatment,aswellaspicklingorGB328092Page3of21similartreatmentshallbedonebyreferringtoTable711,followedbythestraightening.However,incaseofbrightheattreatment,thetreatmentlikepicklingcanbeexempted.Forprecipitationhardeningsteeltobeheattreated,thepurchasershallspecifythetypesoftheheattreatmentinthecontractandclarifywhethertheheattreatmentisintendedforthesteelplateitselforforthetestpiece.Ifnecessary,flattening,grindingorcoldrollingatdifferentdegreescanbecarriedout.4.3MechanicalPropertiesThemechanicalpropertiesofallsteelplates,subjecttoheattreatment,shallbeinaccordancewiththeprovisionsassetforthin4.3.14.3.4herein.UnlessotherwiserequiredbythepurchaserandspecifiedintheContract,theyieldstrengthandhardnessofvarioussteelplatesshallnotbedetermined.Forvariouskindsofhardnesstests,thetestcanbecarriedoutbyselectingonemethodonthebasisofthedifferentdimensionsandconditionsofsteelplates.UnlessotherwiserequiredbythepurchaserandspecifiedintheContract,thebendtestforvarioussteelsshallnotbedone.GB328092Page4of21Table2ChemicalCompositionsofAusteniteSteelNo.GradeChemicalCompositionCSiMnPSNiCrMoCuNOthers11Cr17Mn6Ni5N”0.15”1.005.507.50”0.060”0.0303.55.5016.0018.00”0.2521Cr18Mn8Ni5N”0.15”1.007.5010.00”0.060”0.0304.006.0017.0019.00”0.2532Cr13Mn9Ni40.150.25”1.008.0010.00”0.060”0.0303.705.0012.0014.0041Cr17Ni70.150.25”1.00”2.00”0.035”0.0306.008.0016.0018.0051Cr17Ni80.030.12”1.00”2.00”0.035”0.0307.009.0016.0018.0061Cr18Ni9”0.15”1.00”2.00”0.035”0.0308.0010.0017.0019.0071Cr18Ni9Si3”0.152.003.00”2.00”0.035”0.0308.0010.0017.0019.0080Cr18Ni9”0.07”1.00”2.00”0.035”0.0308.0010.0017.0019.00GB328092Page5of21Table2continuedNo.GradeChemicalCompositionCSiMnPSNiCrMoCuNOthers900Cr19Ni10”0.030”1.00”2.00”0.035”0.0308.0012.0018.0020.00100Cr19Ni9N”0.08”1.00”2.50”0.035”0.0307.0010.5018.0020.000.100.25110Cr19Ni10NbN”0.08”1.00”2.50”0.035”0.0307.5010.5018.0020.000.150.30Nb”0.151200Cr18Ni10N”0.030”1.00”2.00”0.035”0.0308.5011.5017.0019.000.120.22131Cr18Ni12”0.12”1.00”2.00”0.035”0.03010.5013.0017.0019.00140Cr23Ni13”0.08”1.00”2.00”0.035”0.03012.0015.0022.0024.00150Cr25Ni20”0.08”1.50”2.00”0.035”0.03019.0022.0024.0026.00160Cr17Ni12Mo2”0.08”1.00”2.00”0.035”0.03010.0014.0016.0018.002.003.00GB328092Page6of21Table2continuedNo.GradeChemicalCompositionCSiMnPSNiCrMoCuNOthers1700Cr17Ni14Mo2”0.030”1.00”2.00”0.035”0.03012.0015.0016.0018.002.003.00180Cr17Ni12Mo2N”0.08”1.00”2.00”0.035”0.03010.0014.0016.0018.002.003.000.100.221900Cr17Ni13Mo2N”0.030”1.00”2.00”0.035”0.03010.5014.5016.5018.502.003.000.120.22200Cr18Ni12Mo2Ti”0.08”1.00”2.00”0.035”0.03011.0014.0016.0019.001.802.50Ti5C0.70211Cr18Ni12MoTi1Ŕ0.12”1.00”2.00”0.035”0.03011.0014.0016.0019.001.802.50Ti5C0.020.80220Cr18Ni12Mo2Cu2”0.08”1.00”2.00”0.035”0.03010.0014.0017.0019.001.202.751.002.502300Cr18Ni14Mo2Cu2”0.030”1.00”2.00”0.035”0.03012.0016.0017.0019.00240Cr18Ni12Mo3Ti”0.08”1.00”2.00”0.035”0.03011.0014.0016.0019.002.503.50Ti5C0.70GB328092Page7of21Table2continuedNo.GradeChemicalCompositionCSiMnPSNiCrMoCuNOthers251Cr18Ni12Mo3Ti1Ŕ0.12”1.00”2.00”0.035”0.03011.0014.0016.0019.002.503.50Ti5CÁ0.020.80260Cr19Ni13Mo3”0.08”1.00”2.00”0.035”0.03011.0015.0018.0020.003.004.002700Cr19Ni13Mo3”0.030”1.00”2.00”0.035”0.03011.0015.0018.0020.003.004.00280Cr18Ni16Mo5”0.040”1.00”2.00”0.035”0.03015.0017.0016.0019.004.006.00290Cr18Ni10Ti”0.08”1.00”2.00”0.035”0.0309.0012.0017.0019.00Ti•5C301Cr18Ni9Ti1Ŕ0.12”1.00”2.00”0.035”0.0308.0011.0017.0019.00Ti5C0.020.80310Cr18Ni11Nb”0.08”1.00”2.00”0.035”0.0309.0013.0017.0019.00Nb•10C320Cr18Ni13Si4”0.083.005.00”2.00”0.035”0.03011.5015.0015.0020.00NotesNotes7Apartfromtheelementslistedinthetable,otheralloyelementscanbeaddedifnecessary.1Thegradeisnotrecommendedforuseinnormalcasesexceptforthespecialpurpose.

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