Thermal Conductivities of Various Materials

A Level Physics Notes

Thermal Physics and Gases

Thermal Conductivities of Various Materials

Thermal Conductivities of Various Materials

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Thermal Conductivity - k - W/(m.K)
Material/Substance	Temperature - ^{o C}
Material/Substance	25	125	225
Acetone	0.16			Acrylic	0.2			Air (gas)	0.024			Alcohol	0.17			Aluminium	250	255	250
Aluminum Oxide	30			Ammonia (gas)	0.022			Antimony	18.5			Argon (gas)	0.016			Asbestos-cement board	0.744			Asbestos-cement sheets	0.166			Asbestos-cement	2.07			Asbestos, loosely packed	0.15			Asbestos mill board	0.14
Asphalt	0.75			Balsa	0.048			Bitumen	0.17			Benzene	0.16			Beryllium	218			Brass	109			Brick dense	1.31			Brick work	0.69			Cadmium	92			Carbon	1.7			Carbon dioxide (gas)	0.0146
Cement, portland	0.29			Cement, mortar	1.73			Chalk	0.09
Chrome Nickel Steel (18% Cr, 8 % Ni)	16.3
Clay, dry to moist	0.15 - 1.8
Clay, saturated	0.6 - 2.5
Cobalt	69			Concrete, light	0.42			Concrete, stone	1.7
Constantan	22			Copper	401	400	398
Corian (ceramic filled)	1.06			Corkboard	0.043			Cork, regranulated	0.044			Cork	0.07			Cotton	0.03			Carbon Steel	54	51	47
Cotton Wool insulation	0.029			Diatomaceous earth (Sil-o-cel)	0.06			Earth, dry	1.5
Engine Oil	0.15			Ether	0.14			Epoxy	0.35			Ethylene glycol	0.25			Felt insulation	0.04			Fiberglass	0.04			Fiber insulating board	0.048			Fiber hardboard	0.2
Fireclay brick 500 ^{o C}	1.4			Foam glass	0.045			Freon 12 (gas)	0.073
Freon (liquid)	0.07			Gasoline	0.15			Glass	1.05			Glass, Pearls, dry	0.18			Glass, Pearls, saturated	0.76			Glass, window	0.96
Glass, wool Insulation	0.04			Glycerol	0.28			Gold	310	312	310
Granite	1.7 - 4.0			Gypsum or plaster board	0.17			Hairfelt	0.05
Hardboard high density	0.15			Hardwoods (oak, maple..)	0.16			Helium (gas)	0.142			Hydrogen (gas)	0.168			Ice (0 ^{o C, 32 ^{o F)}}	2.18			Insulation materials	0.035 - 0.16			Iridium	147			Iron	80	68	60
Iron, wrought	59			Iron, cast	55			Kapok insulation	0.034			Kerosene	0.15			Lead Pb	35			Leather, dry	0.14			Limestone	1.26 - 1.33			Magnesia insulation (85%)	0.07			Magnesite	4.15
Magnesium	156			Marble	2.08 - 2.94			Mercury	8			Methane (gas)	0.030			Methanol	0.21			Mica	0.71			Mineral insulation materials, wool blankets ..	0.04
Molybdenum	138			Monel	26			Nickel	91			Nitrogen	0.024			Nylon 6	0.25			Oil, machine lubricating SAE 50	0.15			Olive oil	0.17			Oxygen	0.024			Paper	0.05			Paraffin Wax	0.25			Perlite, atmospheric pressure	0.031
Perlite, vacuum	0.00137
Plaster, gypsum	0.48			Plaster, metal lath	0.47			Plaster, wood lath	0.28			Plastics, foamed (insulation materials)	0.03
Platinum	70	71	72
Plywood	0.13			Polyethylene HD	0.42 - 0.51			Polypropylene	0.1 - 0.22
Polystyrene expanded	0.03			Polyurethane foam	0.02			Porcelain	1.5			PTFE	0.25			PVC	0.19			Pyrex glass	1.005			Quartz mineral	3			Rock, solid	2 - 7
Rock, porous volcanic (Tuff)	0.5 - 2.5
Rock Wool insulation	0.045			Sand, dry	0.15 - 0.25			Sand, moist	0.25 - 2
Sand, saturated	2 - 4			Sandstone	1.7
Sawdust	0.08			Silica aerogel	0.02
Silicone oil	0.1			Silver	429			Snow (temp < 0 ^{o C)}	0.05 - 0.25			Sodium	84			Softwoods (fir, pine ..)	0.12			Soil, with organic matter	0.15 - 2
Soil, saturated	0.6 - 4
Steel, Carbon 1%	43			Stainless Steel	16	17	19
Straw insulation	0.09			Styrofoam	0.033			Tin Sn	67			Zinc Zn	116			Urethane foam	0.021
Vermiculite	0.058
Vinyl ester	0.25			Water	0.58			Water, vapor (steam)		0.016		Wood across the grain, white pine	0.12			Wood across the grain, balsa	0.055			Wood across the grain, yellow pine	0.147			Wood, oak	0.17
Wool, felt	0.07

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