Grade-310S不锈钢高温性能

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1、NorthAmericanStainlessLongProductsStainlessSteelGradeSheetAISI310SUNSS31008EN1.4845AISI314UNSS31400EN1.4841INTRODUCTIONTypes310SSSand314SSarehighlyalloyedausteniticstainlesssteelsdesignedforserviceatelevatedtemperature.ThehighCrandNicontentsenablethisalloytoresistoxidationincontinuousservic

2、eattemperaturesupto2200°Fprovidedreducingsulfurgasesarenotpresent.Inintermittentservice,310SSScanbeusedattemperaturesupto1900°Fasitresistsscalingandhasarelativelylowcoefficientofexpansion.Increasedlevelofsiliconin314SSfurtherimprovesoxidationresistanceathighertemperature.Carburizingatmosphe

3、remayreducethetotallifedependingontheactualconditions.However,thesegradeshavesuperiorresistancecomparedtolower-chromium-nickelgrades.Thesegradesareusedfortheirhigh-temperatureoxidationresistanceforapplicationssuchasfurnaceparts,furnaceconveyerbelts,insulationholdingstuds,etc.PROUDCTSAVAILAB

4、LEWireRod.Seeproductsheetfordimensions,tolerances,finishesavailableandotherdetails.StandardChemicalCompositionElementsCMNPSSICRNIUNSMin24.0019.00AISI31031000Max0.252.000.0450.0301.5026.0022.00UNSAISIMin24.0019.0031008310SMax0.082.000.0450.0301.5026.0022.00UNSMin1.5023.0019.00AISI31431400Max

5、0.252.000.0450.0303.0026.0022.00NominalMechanicalProperties(annealedcondition)TensileStrengthYieldStrength%Elongation%Reductioninksi[MPa]ksi[MPa]4dArea95[655]45[310]5060NOMINALPROPERTIESATELEVATEDTEMPERATURESThepropertiesquotedbelowaretypicalofannealed310Sand314SS.Thesevaluesaregivenasaguid

6、elineonly,andshouldnotbeusedfordesignpurposes.NOMINALPHYSICALPROPERTIESPROCESSING&FABRICATIONANNEALINGAnnealingisachievedbyheatingtobetween1900°Fand2050°Ffor60minutesperinchthicknessfollowedbywaterquenching.Annealingwillensurethatanycarbideprecipitatesaredissolvedbackinsolution.COLDWORKINGT

7、hesegradescanbedrawnintowire,formedintoparts(bending)andcoldheadedwithoutanydifficulty.Severecold-formingoperationsshouldbefollowedbyannealing.WELDINGThesegradescanbesatisfactorilyweldedandbrazedbymostconventionalmethods,givingatoughweld.Weldingprocedure