Stellite-Alloys-司太立合金使用手册

ALLOYSHARDFACINGALLOYSKennametalStelliteisaglobalproviderofsolutionstowear,heat,andcorrosionproblemsandisaworld-classmanufacturerofalloy-basedmaterialsandcomponents.Theseconsumablescomeintheformofrod,wire,powder,andelectrodeandcanbecustomengineeredtomeetindividualcustomerneeds.Inadditiontoweldingconsumables,KennametalStellitealsooffersitsexpertiseandexperienceincoatingservicesintheformofHVOF(High-VelocityOxyFuel)coatingsandweldhardfacings.IntheUKandinShanghai,hardfacedcomponentscanbemanufacturedcompletetodrawingbyin-housemachineshops.IndustriesServedKennametalStelliteoffersitsprovenheat,wear,andcorrosionexperienceandcustomizedsolutionstoabroadrangeofindustries,including:•Aerospace•Oil&Gas•Automotive•PowerGeneration•Steel•Timber•Glass•Forging•DentalHardfacingAlloysTableofContentsAtaGlance.............................................2TIGandOxy-AcetyleneWelding...............4MMAWeldDeposition.............................6MIGWeldDeposition,SubmergedArcWelding..........................8PTA&LaserWeldDeposition................10HVOF&PlasmaSprayDeposition..........14SprayandFuse&PowderWelding........20SelectionTableALLOYStellite™Deloro™Tribaloy™Nistelle™Delcrome™Stelcar™JetKote™ExcellentVeryGoodSatisfactoryLowResistanceMECHANICALWEARHIGHOPERATINGTEMPERATURECORROSIONNistelleTMAlloysNistelle™alloysaredesignedforcorrosionresistanceratherthanwearresistance,particularlyinaggressivechemicalenvironmentswheretheirhighchromiumandmolybdenumcontentsprovideexcellentpittingresistance.Asaclass,theyarealsogenerallyresistanttohigh-temperatureoxidationandhotgascorrosion.Careshouldbetakentoselectthecorrectalloyforanygivencorrosiveenvironment.Stelcar™AlloysStelcar™alloysaremixturesofcarbideparticlesandnickel-orcobalt-basedpowders.Duetotheirconstruction,Stelcar™materialsareavailableonlyinpowderform,forapplicationbythermalsprayingorweldhardfacing.JetKoteTMPowderJetKote™powdersareusedforthermalspraying,andtheyusuallyconsistofeitheracarbide-metalcombination(e.g.,WC-CoorCr3Cr2-NiCr)oraStellite™alloy.DelcromeTMAlloysTheseiron-basedalloysweredevelopedtoresistabrasivewearatlowertemperatures,typicallyupto200ºC.Whencomparedwithourcobalt-andnickel-basedalloys,theircorrosionresistanceisalsocomparativelylow.StelliteTMAlloysThecobalt-basedStellite™alloysareourmostwell-knownandsuccessfulalloys,withthebest“all-round”properties.Theycombineexcellentmechanicalwearresistance,especiallyathightemperatures,withverygoodcorrosionresistance.TheStellite™alloysaremostlycobaltbasedwithadditionsofCr,C,W,and/orMo.Theyareresistanttocavitation,corrosion,erosion,abrasion,andgalling.Thelowercarbonalloysaregenerallyrecommendedforcavitation,slidingwear,ormoderategalling.Thehighercarbonalloysareusuallyselectedforabrasion,severegalling,orlow-angleerosion.Stellite™6isourmostpopularalloyasitprovidesagoodbalanceofalloftheseproperties.TheStellite™alloysretaintheirpropertiesathightemperatureswheretheyalsohaveexcellentoxidationresistance.Theyaretypicallyusedinthetemperaturerange315–600°C(600–1112°F).Theycanbefinishedtoexceptionallevelsofsurfacefinishwithalowcoefficientoffrictiontogivegoodslidingwear.DeloroTMAlloysTheDeloro™alloysarenickelbasedwithadditionsoftypicallyCr,C,B,Fe,andSi.Theycoveraverywiderangeofhardnessfromsoft,tough,build-upalloysthatareeasilymachinedorhandfinishedtoexceptionallyhard,wear-resistantalloys.Theycanbeselectedforhardnessesofbetween20and62HRCdependingontheapplication.Theirlowmeltingpointmakesthesepowdersidealforspray/fuseorpowderweldingapplications.ThelowerhardnessDeloro™alloysaretypicallyusedforglassformingmolds.ThehigherhardnessDeloro™alloysareusedinseverewearapplications,suchasrebuildingtheflightsoffeederscrews,andtheycanbeblendedwithcarbidesforanevenharderdeposit.Theymaintaintheirpropertiesuptotemperaturesofabout315°C(600°F)andalsooffergoodoxidationresistance.TribaloyTMAlloysTribaloy™alloys,witheithernickelorcobaltbase,weredevelopedforapplicationsinwhichextremeweariscombinedwithhightemperaturesandcorrosivemedia.Theirhighmolybdenumcontentaccountsfortheexcellentdry-runningpropertiesofTribaloy™alloysandmakesthemverysuitableforuseinadhesive(metal-to-metal)wearsituations.Tribaloy™alloyscanbeusedupto800–1000°C(1472–1832°F).HardfacingAlloysHardfacingAlloys2(HRC)3CoCrWMoCFeNiSiNOMINALANALYSISOFWELDINGROD1Stellite™alloy1Bal.32122.453.01.03.02.00.5R30001(SF)A5.2151–56ERCoCr-CNistelle™alloyC—1750.1Bal.176—0.3%VN30002—17–27*Tribaloy™alloyT-400Bal.8.5—0.081.5281.52.51.0R30400—54–58Stellite™alloy6Bal.304–51.23.01.03.02.00.5R30006(SF)A5.2140–45ERCoCr-ANistelle™alloy625—21—0.10Bal.8.55—3.3%N06625(SF)A5.14ERNiCrMo-3Tribaloy™alloyT-400CBal.14—0.081.5271.52.61.0——54–59Stellite™alloy12Bal.3081.553.01.03.02.00.5R30012(SF)A5.2146–51ERCoCr-BDeloro™alloy40—12—0.4Bal.—2–32.91.6%BN99644(SF)A5.2136–42ERNiCr-ATribaloy™alloyT-401Bal.17—0.21.5221.51.31.0——47–53Stellite™alloy20