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Page 1 of6Thermal Conductivity of some common MaterialsThe Engineering Tool Boxwww.EngineeringToolBox.comGo LO Web The Engineering ToolBoxResources, Tools and Basic Information for Engineering and Design of Technical Applications! Thermal Conductivity of some common Materialsj Thermal conductivity of some common materials as aluminum, asphalt, brass, copp\ and many more Thermal ConductivityPipe InsuiationContract testing & Instrument Sales Solids, Five Great Sites About Pipe Insulationliquids & dqid Foam InsulationBargain Prices. Smart Deals. Shop form Ridgid Products!Shopzilla.comExternal Wall InstHow, why and where tm CD or CD ROM versiorwww.externalwallinsulAds bv GooooooqleThermal conductivity is the quantity of heat transmitted through a unit thickness in a direction normal to a surfacedue to a unit temperature gradient under steady state conditions.Thermal conductivity, or heat transfer coefficients, of some common materials and products can be found in the tThermal Conductivity - k - (W/m umfilWI1 1II IU 1 1 1Aluminum OxideAmmonia#»i1111 iv i IIQAntimnnvArgonAsbestos-cement boardAsbestos-cementsheetsAsbestos-cementAsbestos, assBrick denseBrick workCadmiumCarbonCement, portlandCement, t10.0RTemperature ( 480.170.162181091.310.69921.70.291.73690.9-2http ://www. engineeringtoolbox .com/thermal-conducti vity-d 429.html4/2/07
Page 2 of6Thermal Conductivity of some common MaterialsConstantanCopperCorian (ceramic filled)CorkboardCork, regranulatedCork, groundCottonCarbon SteelCotton Wool insulationDiatomaceous earth(Sil-o-cel)EtherEpoxyFelt insulationFiberglassFiber insulating board224011.060.0430.0440.0430.03540.029Fireclay brick 500 CFoam GlassGasolineGlassGlass Pearls, dryGlass Pearls, saturatedGlass Wool InsulationGlycerolGoldGraniteGypsum or plasterjboardHardboard high densityHardwoods (oak,maple.)HeliumHydrogenIceInsulation materialsIridiumIronIron, wroughtjIron, castKapok insulationKeroseneLead PbLeatherLimestoneMagnesia 1470 283101.7-4.0312. ,3100.170.15O 1fiv.1 box.eom/thermal-conductivity-d 429.lhtml6860 4/2/07
Thermal Conductivity of some common MaterialsPage 3 of6MethanolMicaMolybdenum\MonelNickelNitrogenNylon 6Oil, machineOlive oilOxygenPaperParaffin WaxPlaster, gypsumPlaster, metal lathPlaster, wood lathPlatinumPlywoodPolyethylene HDPolypropylenePolystyrene expanded1PorcelainPTFEPVC!Pyrex glassQuarts mineralRock Wool insulationSand, drySand, saturatedSaw Dustoincone .250.480.470.28700.130.42 - 0.510.1 ow (temp 0 C)SodiumSoftwoods (fir, pine .)SteelStainless SteelStraw insulationStyrofoamTin SnZinc ZnVinyl esterWaterWater, vapor (steam)Wood across the grain,white pineWood across the grain,balsaWood across the grain,yellow pine0.05 - 160.12- l-conductivity-d 429.html4/2/07
Thermal Conductivity of some common MaterialsWool feltPage 4 of 60.04 1 W/(m.K) 1 W/(m C) 0.85984 kcal/(h.m. C) 0.5779 Btu/(fth: F) What is conductive heat transfer?( Related Topicsj Insulation Heat transfer and heat loss from buildings and technical applications. Insulation methods and coeffireduce energy consumption. Material Properties Material properties as densities, heat capacities for gases, fluids and solids . Thermodynamics Thermodynamics studies the effects of changes in temperature, pressure, and volume on pat the macroscopic scale by analyzing the collective motion of their particles.Related Documents Conductive Heat Transfer Heat transfer will take place as conduction when there exists a temperature gradierfluid Overall Heat Transfer Coefficient Calculating the overall heat transfer coefficient in walls or heat exchangers Mineral Wool Insulation Thermal conductivity - Temperature and k-values Thermal Conductivity of Metals Thermal conductivity of some common metals Insulation Materials and Temperature Ranges Temperature limits of some common insulation materials Resistivity from Conductivity Thermal resistivity and conductivity Thermal Transmittance - U Thermal transmittance - U - from thermal resistance Calcium Silicate Insulation Thermal conductivity - temperature and k-valuesmxm xMmmmMm:AMToolBox ShortListDifficult to find your favorite ToolBox page? Add links to your favorite pages in your own personal Shortlist! Add a link to This page Here! Add this Page! Delete the ShortList!Search the ToolBoxGoogle [O Web The Engineering ToolBox1eirc Translate the ToolBoxhttp://wvw.engmeeringtoolbo 4/2/07
Page 5 of 6Thermal Conductivity of some common MaterialsHome AcousticsFreeTranstetion Air Psychrometrics BasicsTranslate this page to Spanish French German Italian Dutch Norwegian Combustion ElectricalAbout Us Environment Fluid MechanicsWe appreciate any comments and tips on how to make The Engineering ToolBox a better.Gas and Compresjsertformation source. Please contact us by emailAirHVAC Systems j thcrfot@yahoo.comInsulation Material Propertied jf you find any faults, inaccurate, or otherwise unacceptable information.MechanicsThe content in The Engineering ToolBox is copyrighted but can be used with NO9MiscellaneousWARRANTY or LIABILITY. Important information should always be double checked with Physiologyalternative sources. All applicable national and local regulations and practices concerning Piping Systemsthis aspects must be strictly followed and adhered to. Process Control The Engineering ToolBox 2005 Pumps7 3 23 StandardsOrganizations Steam andCondensate Thermodynamics Water SystemsAds by GoogleMeat QondMQtiveHeat DissioativeAluminum FilledAluminum MptdinoCopper AdditiveToolBox ShortList! Add this Page!'BookMarktte* BookMark this Page! Link to this Page!-Post this page todel.icio.usPrinterfriendlvToolBox ShortList!* Add this Page!BookMark the ToolBox! BookMark this Paael» Link to this Page! Post this page todel.icio.usApplianceDesktop EngineeringGoogle * Search this Site! Translate this Page!* About lis!TemperatureIndustry standardsonline:ASM, ASME, IEEE,ISO, hermal-conductivity-d 429.html4/2/07
ThermaLConductivity of some common MaterialsO nautical milesVolume1Velocity1inches Ho0Flow1 m*/sO USgpmO cfmUnit Converterindustry stand ardsonline:ASM, AS ME, I EEE,ISO, API TECHSTREET'http://wwwxngineeringtoolto
Materials — Boron Nitride (BN) PropertiesPage 1 of 4STANDARD PRODUCTSCALL US RIGHT NOWCCURATUS MiOr email Accuratus5MaterialsBoron Nitride, BNAccuflectBoron nitride is a white solid material in the as produced hot pressed form. Iporosity solid. It is easily machined into complex shapes using standard carbThe material is anisotropic in its electrical and mechanical properties due tohexagonal crystals and their orientation during the hot press consolidation.Aluminum NitrideAluminum OxideBoron NitrideFused SilicaMacorKey Properties\/ High thermal conductivitysf Low thermal expansionV Good thermal shock resistancey/ High electrical resistance*Mullite\/ Low dielectric constant and loss tangentSialon\/ Microwave transparency\/ NontoxicSilicon CarbideSilicon NitrideZirconium Oxide' f Easily machined — non abrasive and lubricious / Chemically inert\/ Not wet by most molten metalsTypical UsesV Electronic parts — heat sinks, substrates, coil forms, prototypesBoron doping wafers in silicon semiconductor processing / Vacuum melting cruciblesV CVD crucibles / Microcircuit packagingV Sputtering targetsV High precision sealing, brazing, and metallizing fixturesMicrowave tubes Horizontal caster break ringsvLow friction seals / Plasma arc insulators High temperature furnace fixtures and 7
Materials — Boron Nitride (BN) PropertiesPage 2 of4General InformationBoron nitride is often referred to as "white graphite" because it is a lubriciouthe same platy hexagonal structure as carbon graphite. Unlike graphite, BN ielectrical insulator. It offers very high thermal conductivity and good thermaresistance. BN is stable in inert and reducing atmospheres up to 2800 C, andatmospheres to 850 C.Three grades are commonly used, including a boric oxide binder system, a c;binder system, and a pure diffusion bonded grade. The boric oxide containin(Grade BO) absorbs moisture which causes swelling and property degradaticborate containing material (Grade CA) is moisture resistant. The pure BN m;XP) contains no binders and is used for extremes of temperature and where \important. The boric oxide material is the most commonly used grade.Engineering Properties*Boron Nitride, Grade BOUnits of MeasureMechanicalOrientation to PressimParallelSi/Metric (Imperial)3P Densitygm/cc (lb/ft )1.9(120)1.Porosity% (%)2.82.82.whitewhitewhColor23Flexural StrengthMPa (Ib/in x10 )75.8(11.0)11Elastic r ModulusGPa (Ib/in x10 )Bulk ModulusGPa (Ib/in2x106)Poisson's RatioCompressive StrengthHardnessFracture ToughnessKICMaximum UseTemperature(inert atm)MPa(lb/in2x103)2Kg/mm15-2415-MPa«m3/2 C ( F)1800(3250)Thermal ConductivityWmv K(BTU'in/ft2«hr« F)30(205)3:Coefficientof Thermal Expansion10-VC (lO /T)11.9(6.6)3.J/Kg- K (Btu/lb- F)1610(.38)Dielectric Strengthac-kv/mm (volts/mil)95(2400)Dielectric Constant@ 8.8 GHz4.6ThermalSpecific !4.4/2/2007
Materials — Boron Nitride (BN) PropertiesDissipation FactorPage 3 of 48.8 GHz0.00170.0CLoss TangentVolume Resistivity 1014ohnvcm— 1CBoron Nitride, Grade CAUnits of MeasureMechanicalOrientation to PressimParallelSi/Metric (Imperial)3P Densitygm/cc (lb/ft )1.9(120)1.Porosity% (%)1515Vwhite—wh' MPa(lb/in x10 )43.4(6.3)6lGPa (Ib/in2x106)33.8(4.9)7!MPa (Ib/in2x103)30(4.4)44Kg/mm214-18ColorFlexural StrengthElastic Modulus2326Shear ModulusGPa (Ib/in x10 )Bulk ModulusGPa (Ib/in2x106)Poisson's RatioCompressive StrengthHardnessFracture ToughnessKicMaximum UseTemperature(inert atm)14-MPa*m1'2 C ( F)1800(3200)Thermal ConductivityW/m K(BTOin/ft2«hr* F)27(187)3Coefficientof Thermal ExpansionlO /X (10 / F)2.95(1.6).8J/Kg* K(Btu/lb* F)1470.35-Dielectric Strengthac-kv/mm (volts/mil)67(1700)Dielectric Constant@ 8.8 GHz4.3—4Dissipation Factor@ 8.8 GHz0.0014—0.0Cohm-cm 10 14— 1(ThermalSpecific HeatElectricalLoss TangentVolume ResistivityBoron Nitride, Grade XPUnits of oron.htmlOrientation to PressinjSi/Metric (Imperial)3gm/cc (lb/ft )Parallel1.9(120)P 1.4/2/2007
1Materials — Boron Nitride (BN) PropertiesPorosityPage 4 of 41414whitewhitewh13.8(2)2114(2)% (%)ColorFlexural StrengthElastic ModulusMPa (Ib/in2x103)2626GPa (Ib/in x10 )Shear ModulusGPa (Ib/in x10 )Bulk ModulusGPa (Ib/in2x106)VPoisson's RatioLrompressive oirengin2HardnessKg/mmFracture ToughnessKICMaximum UseTemperature(inert atm)1I ftoivira (ID/in xiu )t ;3-3-5Mra*m C ( F)3000(5400)—Thermal ConductivityWmv Kfn*rt i Ffi9 i oi"\(BTlhn/fr»hr« F)71(490)12Coefficientof Thermal Expansion10rfl/eC(1(re/eF)0.6( 33)-.4j/Kg« K (Btu/lb» F)1470(.36)Dielectric Strengthac-kv/mm (volts/mil)80(2000)Dielectric Constant@ 8.8 GHz4Dissipation Factor@ 8.8 GHz0.0012o.ocohnvcm 1014 1(ThermalSpecific HeatFlprtriraluivvU iuai81ALoss TangentVolume Resistivity*AII properties are room temperature values except as noted.The data presented is typical of commercially available material and is offered for comparative purposes only,to be interpreted as absolute material properties nor does it constitute a representation or warranty for which vsliability. User shall determine suitability of the material for the intended use and assumes all risk and liability wlconnection therewith.Standard Products Custom Products and Services Case Studies MaDesign Notes Working Together Vision Contact Us j Site Map1-908-213-7070 2002 AccuratusSite Design M. Adamshttp://www.accuratus.com/boron.html4/2/2007
02.04.2007 · www.EngineeringToolBox.com . L . O Web The Engineering ToolBox Resources, Tools and Basic Information for Engineering and Design of Technical Applications! Thermal Conductivity of some common Materials . j Thermal conductivity of some common materials as aluminum, asphalt, brass, copp \ and many more . Thermal Conductivity Pipe Insuiation
