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Page:1of7CarpenterMP35NAlloyDisclaimer:Theinformationanddatapresentedhereinaretypicaloraveragevaluesandarenotaguaranteeofmaximumorminimumvalues.Applicationsspecificallysuggestedformaterialdescribedhereinaremadesolelyforthepurposeofillustrationtoenablethereadertomakehis/herownevaluationandarenotintendedaswarranties,eitherexpressorimplied,offitnessfortheseorotherpurposes.Thereisnorepresentationthattherecipientofthisliteraturewillreceiveupdatededitionsastheybecomeavailable. Unlessotherwisespecified,registeredtrademarksarepropertyofCRSHoldingsInc.,asubsidiaryofCarpenterTechnologyCorporationCopyright2006CRSHoldingsInc.Allrightsreserved.EditionDate:9/8/2003Visitusonthewebat TypeAnalysis GeneralInformationDescriptionCarpenterMP35N*alloyisanonmagnetic,nickel-cobalt-chromium-molybdenumalloypossessingauniquecombinationofultrahightensilestrength(upto300ksi[2068MPa]),goodductilityandtoughness,andexcellentcorrosionresistance.Inaddition,thisalloydisplaysexceptionalresistancetosulfidation,hightemperatureoxidation,andhydrogenembrittlement. TheuniquepropertiesofMP35Nalloyaredevelopedthroughworkhardening,phasetransformationandaging.Ifthealloyisusedinthefullyworkhardenedcondition,servicetemperaturesupto750°F(399°C)aresuggested. MP35Nalloyisnormallyproducedbyvacuuminductionmelting(VIM),followedvacuumarcremelting(VAR). *MP35NisatrademarkofSPSTechnologies,Inc.MPisaregisteredtrademarkofSPSTechnologies,Inc. ApplicationsBecauseofitsuniquecombinationofproperties,MP35Nalloyhasbeenusedinawidevarietyofapplications. MP35Nalloyhasbeenusedinfasteners,springs,nonmagneticelectricalcomponentsandinstrumentpartsinmedical,seawater,oilandgaswell,andchemicalandfoodprocessingenvironments. CorrosionResistanceMP35Nalloypossessesexcellentresistancetosulfidation,hightemperatureoxidation,hydrogenembrittlement,salinesolutionsandmostmineralacids. Thisalloyfeaturesexceptionalresistancetostresscorrosioncrackingatveryhighstrengthlevelsundersevereenvironmentalconditionsthatcancrackmostconventionalalloys.Itisalsohighlyresistanttootherformsoflocalizedattack,suchaspittingandcrevicecorrosion. Inseawaterenvironments,thisalloyisvirtuallyimmunetogeneral,creviceandstresscorrosion,regardlessofstrengthlevelorprocesscondition. MP35Nalloyisanextremelynoblemetal.Thiscanresultingalvaniccorrosionwhenelectricallycoupledwithmoreactivemetalssuchascarbonsteel,Type316stainless,orK-Monel.** MP35NalloyisincludedinNACEMR-01-75***toamaximumhardnessofRockwellC35(maximumhardnessofRockwellC48inspecificcoldreducedplusagedconditions).Thismaterialrequirementlistssulfidestresscrackingresistantmaterialsforexposuretosourenvironments,suchasingasandoilwellservice. **MonelisatrademarkoftheSpecialMetalsCorporationgroupofcompanies. ***NACEStandardMR-01-75MaterialRequirement- SulfideStressCrackingResistantMetallicMaterialforOilFieldEquipment,1980RevisionandMay1981Supplement. • R30035 Carbon(Maximum)0.03%Manganese(Maximum)0.15%Phosphorus(Maximum)0.015%Sulfur(Maximum)0.010%Silicon(Maximum)0.15%Chromium19.00to21.00%Nickel33.00to37.00%Molybdenum9.00to10.50%CobaltBalance Titanium(Maximum)1.00%Boron0.010%Iron(Maximum)1.00%Page:2of7ImportantNote:Thefollowing5-levelratingscaleisintendedforcomparativepurposesonly.Corrosiontestingisrecommended;factorswhichaffectcorrosionresistanceincludetemperature,concentration,pH,impurities,aeration,velocity,crevices,deposits,metallurgicalcondition,stress,surfacefinishanddissimilarmetalcontact. PropertiesPhysicalPropertiesSpecificGravity--8.43 Density--0.3040lb/in³ MeanCoefficientofThermalExpansion70.00°F,200.0°F7.10x10-6in/in/°F 70.00°F,400.0°F7.60x10-6in/in/°F 70.00°F,600.0°F8.20x10-6in/in/°F 70.00°F,800.0°F8.30x10-6in/in/°F 70.00°F,1000.0°F8.70x10-6in/in/°F ThermalConductivity-300°F45.00BTU-in/hr/ft²/°F -100°F63.00BTU-in/hr/ft²/°F 70°F78.00BTU-in/hr/ft²/°F 200°F88.00BTU-in/hr/ft²/°F 400°F104.0BTU-in/hr/ft²/°F 600°F118.0BTU-in/hr/ft²/°F 800°F133.0BTU-in/hr/ft²/°F 1000°F148.0BTU-in/hr/ft²/°F 1200°F162.0BTU-in/hr/ft²/°F NitricAcidGoodSulfuricAcidGoodPhosphoricAcidGoodAceticAcidExcellentSodiumHydroxideGoodSaltSpray(NaCl)ExcellentSeaWaterExcellentSourOil/GasExcellentHumidityExcellent Page:3of7 ModulusofElasticity(E)79°F,Annealed33.8x103ksi 450°F,Annealed31.3x103ksi 900°F,Annealed29.2x103ksi 79°F,ColdWorkedandAged34.1x103ksi 450°F,ColdWorkedandAged31.8x103ksi 900°F,ColdWorkedandAged29.2x103ksi ModulusofRigidity(G)78.0°F,Annealed12.1x103ksi 450°F,Annealed11.3x103ksi 900°F,Annealed10.2x103ksi 78.0°F,ColdWorkedandAged11.7x103ksi 450°F,ColdWorkedandAged10.8x103ksi 900°F,ColdWorkedandAged9.83x103ksi ElectricalResistivity-300°F593.0ohm-cir-mil/ft -100°F608.0ohm-cir-mil/ft 70.0°F621.0ohm-cir-mil/ft 200°F632.0ohm-cir-mil/ft 400°F648.0ohm-cir-mil/ft 600°F664.0ohm-cir-mil/ft 800°F679.0ohm-cir-mil/ft 1000°F694.0ohm-cir-mil/ft 1200°F709.0ohm-cir-mil/ft Page:4of7 MeltingRange--2400.000to2625.000°F MagneticPropertiesMagneticPermeability-319.0°F1.0014Mu -220.0°F1.0012Mu -99.00°F1.0010Mu -17.00°F1.0010Mu 77.00°F1.0009Mu 246.0°F