LIST OF THERMAL CONDUCTIVITIES

In physics, 'thermal conductivity', k, is the intensive property of a material that indicates its ability to conduct heat.
It is defined as the quantity of heat, ''Q'', transmitted in time ''t'' through a thickness ''L'', in a direction normal to a surface of area ''A'', due to a temperature difference Δ''T'', under steady state conditions and when the heat transfer is dependent only on the temperature gradient.
:: thermal conductivity = heat flow rate × distance / (area × temperature difference)
::
This list makes up the data for the smaller list provided in Thermal conductivity.

Material	Thermal conductivity(W·m−1·K−1)	Temperature(K)	Electrical conductivity @ 293 K(Ω−1·m−1)	Notes
Diamond, pure synthetic	i2,000-i2,500	i293	(Lateral)i10−16 - (Ballistic)i108+	(>99.9%12C)
Diamond, impure	ad1,000	a273	i~10−16	Type I (98.1% of Gem Diamonds)(C+0.1%N)
Silver, pure	d406 - f418 - agi429	agi300	g61.35 - i63.01 × 106	Highest ''electrical'' conductivity of any metal
Copper, pure	d385 - f386 - e390 - gi401	egi293	g59.17 - i59.59 × 106	IACS pure =1.7×10-8Ω•m=58.82×106Ω-1•m-1
Gold, pure	d314 - fgi318	gi300	i45.17 - g45.45 × 106
Aluminium, pure	d205 - f220 - egi237	egi293	g37.45 - i37.74 × 106
Brass	dg109 - f119 - f151 - g159	g296	g12.82 - g21.74 × 106	(Cu+(37-15)%Zn)
Iron, pure	f71.8 - d79.5 - a80.2 - gi80.4	agi300	g9.901 - i10.41 × 106
Cast iron	f55			(Fe+(2-4)%C+(1-3)%Si)
Carbon steel	f36 - d50.2 - f54			(Fe+(1.5-0.5)%C)
Bronze	(f(25%Sn)26) g42 - g50	g296	g5.882 - g7.143 × 106	(Cu+11%Sn)
Lead, pure	d34.7 - f35 - gi35.3	gi300	i4.808 - g4.854 × 106
Titanium, pure	f15.6 - gi21.9	gi300	g1.852 - i2.381 × 106
Stainless steel	a14 - fg16.3	a273 - g296	g1.389 - g1.429 × 106	(Fe+18%Cr+8%Ni)
Titanium Alloy	g5.8	g296	g0.595 × 106	(Ti+6%Al+4%V)
Granite	b1.73 - b3.98			(72%SiO2+14%Al2O3+4%K2O etc.)
Marble	b2.07 - b2.94			Mostly CaCO3
Thermal grease, silver-based	i2 - i3
Sandstone	b1.83 - b2.90			~95-71%SiO2
Ice	d1.6 - e2.1 - a2.2	e293 - a273
Limestone	b1.26 - b1.33			Mostly CaCO3
Concrete	d0.8 - e1.28	e293		~61-67%CaO
Glass	d0.8−e0.93(g(96%SiO2)1.2-1.4)	e(g)293	10−14 - (g)10−12 - 10−10	<1% Iron oxides
Fibre-reinforced plastics	g0.23 - g0.7 - e1.06	g296 - e293	g10−15 - g100	10-40%GF or CF
Soil	c0.17 - c1.13
Water	de0.6	de293	5×(Pure)i10−6-(Sweet)i10−3±1-(Sea)i1	<3%(NaCl+MgCl2+CaCl2)
High-Density Polymers	g0.33 - g0.52	g296	g10−16 - g102
Glycerol	e0.29	e293
Wood, +>=12% water	h0.09091 - a0.16 - h0.21 - e0.4	a298 - e293		hSpecies-Variable
Low-Density Polymers	g0.04 - e0.16 - e0.25 - g0.33	g296 - e293	g10−17 - g100
Rubber (92%)	a0.16	a303	~10−13
Alcohols OR Oils	e0.1 - e0.21	e293
Wood, oven-dry	d0.04 - h0.07692 - d0.12 - h0.17			hCedar - hHickory
Snow, dry	d0.11
Cork	d0.04 - e0.07	e293
Fiberglass OR Foam OR Wool	e0.03 - d0.04 - e0.045	e293
Expanded polystyrene	ad0.033 - (g(PS Only)0.1 - 0.13)	a98-a298-(g)296	(g)<10−14 - (g)100	(PS+Air+CO2+CnH2n+x)
Air	d0.024 - e0.025 - a0.0262	d273-e293-a300		(N+21%O+0.93%Ar+0.04%CO2)(1 atm)
Oxygen, pure	d0.0238 - i0.02658	d293 - i300		(O2) (1 atm)
Nitrogen, pure	d0.0234 - i0.02583 - a0.026	d293 - ai300		(N2) (1 atm)
Silica Aerogel	a0.003-i0.004-k0.008-k0.017-i0.03	a98 - a298		Foamed Glass
Material	Thermal conductivity(W·m−1·K−1)	Temperature(K)	Electrical conductivity @ 293 K(Ω−1·m−1)	Notes

Contents

References

See also

References

:^a CRC handbook of chemistry and physics (subscription is required to access the data)
:^b Marble Institute
:^c Soil Sci Journals
:^d Georgia State University - Hyperphysics

:^e Hukseflux Thermal Sensors
:^f Engineers Edge
:^g GoodFellow
:^h Physical Properties and Moisture Relations of Wood
:ⁱ Other listings within Wikipedia references (this table may not be cited, pure elements are sourced from Chemical elements data references, otherwise an in-table linked-page must list the relevant references)
:^j Clarity requires that no reference is to use this letter
:^k Thermal Properties - Silica Aerogels
Heat Conduction Calculator
Thermal conductivity of air as a function of temperature can be found at James Ierardi's Fire Protection Engineering Site

See also

★ Thermal conductivity

★ Thermal conductivities of the elements (data page)