英文版摩擦系数表

DryLubricatedWroughtirononwroughtiron0.440.08-0.10Aluminumonaluminum--Canvasbeltonrubberlagging--Canvasbelt,stitched,onsteel0.20.1Canvasbelt,woven,onsteel0.220.1Castirononasbestos,fabricbrakematerial0.35-0.40-Castirononbrass0.3-Castirononbronze0.220.07-0.08Castirononcastiron0.150.06-0.10Castirononcopper0.29-Castirononlead0.430.13-0.36Castirononleather-0.07-0.20Castirononoak(parallel)0.30-0.50-Castirononmagnesium0.250.133Castirononsteel,mild0.23-Castironontin0.32-Castirononzinc0.21-Earthonearth--Glassonglass0.4-Hempropeonwood0.40-0.70-Nickelonnickel0.530.12Oakonleather(parallel)0.30-0.50-Oakonoak(parallel)0.480.16Oakonoak(perpendicular)0.320.07Rubbertireonpavement0.75-0.850.5-0.7*Steelonice0.01-Staticfrictionisfrictionbetweentwoormoresolidobjectsthatarenotmovingrelativetoeachother.Forexample,staticfrictioncanpreventanobjectfromslidingdownaslopedsurface.Thecoefficientofstaticfriction,typicallydenotedasμs,isusuallyhigherthanthecoefficientofkineticfriction.SlidingMaterialSteel,hard,onbabbit0.33-0.350.05-0.16Steel,hard,onsteel,hard0.420.03-0.12Steel,mild,onaluminum0.47-Steel,mild,onbrass0.44-Steel,mild,onbronze0.340.17Steel,mild,oncopper0.360.18Steel,mild,onsteel,mild0.570.09-0.19Stonemasonryonconcrete--Stonemasonryonground--Wroughtironinbronze0.18…DryLubricatedAluminumAluminum1.10-1.350.3Aluminum-BronzeAlloySteel0.46AluminumSteel0.61Brake(Composite)CastIron0.4.21(wet)BrassSteel0.50.19BrassCastIron0.28BrickWood0.6-BronzeCastIron0.21-BronzeSteel0.16BronzeSinteredSteel-0.12CadmiumCadmium0.50.05CadmiumChromium0.40.35CadmiumSteel,Mild0.46CarbonCarbon0.15.12-.14CarbonSteel0.14.12-.14CastIronSteel0.40.21CastIronZinc0.85-CastIronCastIron1.10.08CastIronCopper1.05-CastIronOakWood0.4850.08Chromium(Chrome)Chromium(Chrome)0.410.34Colbalt(70°C)Cobalt0.3-ConcreteRubber1.30(wet)ConcreteWood0.62-COPPERCASTIRON1.05CopperCopper10.08CopperGlass0.94-CopperSteel0.53-ThefrictionalforceforStaticFrictioncanbeexpressedas:Fmax=μFwhereFmaxn=Frictionalforce(N,lb)μ=static(μs)orkinetic(μk)frictionalcoefficientFn=AppliedNormalforce(N,lb)ThefrictionalforceforDynamicFrictioncanbeexpressedas:Foranobjectpulledorpushedhorizontally,thenormalforce-N-issimplytheweight:N=mgWhere:m=Mass(kg,slugs)g=Gravity(9.81m/s2,32ft/s2)StaticCoefficientofFrictionMaterialAgainstMaterialCopper-LeadAlloySteel0.22-CorkIron0.35-DiamondDiamond0.1.05-.10DiamondMetal.10-.150.1GlassGlass.90-1.0.10-.60GlassMetal.50-.70.20-.30GlassNickel0.780.57GraphiteGraphite0.10.1GraphiteSteel0.10.1HorseshoeConcrete0.67-HorseshoeRubber0.28-IceWood0.05-IceSteel0.04-IronIron1.15-..20LeadCastIron0.41-LeatherIron0.3LeatherWood.30-.40-LeatherMetal0.6-Leather(Greasy)Iron.2-.25MagnesiumMagnesium0.60.079MasonryBrick0.65-NickelNickel0.70.28NylonNylon.15-.25-OakOak0.61-PaperCastIron0.19-PhosphorBronzeSteel0.35-PlatinumPlatinum1.20.25PlexiglasPlexiglas0.80.8PlexiglasSteel.40-.50.40-.50PolyetheneSteel0.20.2PolystyrenePolystyrene0.50.5PolystyreneSteel.30-.35.30-.35RubberRubber1.15-RubberAsphalt0.9-RubberConcrete0.6-Rubber(60ABelt)StainlessSteel3160.64-Rubber(60ABelt)Rubber(40ABelt)0.62-Rubber(60ABelt)Rubber(60ABelt)0.73-Rubber(60ABelt)ToolSteel0.86-Rubber(60ABelt)TungstenCarbide0.62-Rubber(60ABelt)UHMW0.56-Rubber(60ABelt)Urethane500.6-Rubber(60ABelt)Urethane80A0.7-Rubber(60ABelt)Urethane0.67-SilverSilver1.40.52Skin,HumanMetals(63Ra)0.9-SteelSteel0.80.16TeflonSteel0.040.04TeflonTeflon.05-.200.04TinCastIron0.31-Tire,RubberAsphalt0.71-Tire,RubberGrass0.36-TungstenCarbideSteel.40-.60.10-.20TungstenCarbideTungstenCarbide.20-.250.12WoodWood.25-.500.2WoodMetals.20-.60.20(wet)ZincZinc(Chrome)0.60.04