Thermal conductivities of the elements

This page lists the thermal conductivity of the common stable isotope for each of the elements.

Thermal conductivity

{| class="wikitable sortable"

! colspan="3" | Element

! rowspan="2" | Usable value

! colspan="4" | Source data

! No.

! Sym.

! Name

| 1 || H || Hydrogen || 180.5 mW/(m·K) || || 186.9 mW/(m·K) (at p=0) || 0.1805 W/(m·K) || 0.1805 W/(m·K)

| 2 || He || Helium || 151.3 mW/(m·K) || || 156.7 mW/(m·K) (at p=0) || 0.1513 W/(m·K) || 0.1513 W/(m·K)

| 3 || Li || Lithium || 84.8 W/(m·K) || 0.847 W/(cm·K) || || 84.8 W/(m·K) || 85 W/(m·K)

| 4 || Be || Beryllium || 200 W/(m·K) || 2.00 W/(cm·K) || || 200 W/(m·K) || 190 W/(m·K)

| 5 || B || Boron || 27.4 W/(m·K) || || || 27.4 W/(m·K) || 27 W/(m·K)

| 6 || C || Carbon || (diamond) (900–2320) W/(m·K) (graphite) (119–165) W/(m·K) || (diamond) (type I) 8.95 W/(cm·K) (type IIa) 23.0 W/(cm·K) (type IIb) 13.5 W/(cm·K) (pyrolytic graphite) (parallel to the layer planes) 19.5 W/(cm·K) (perpendicular) 0.0570 W/(cm·K) || || (diamond) (900–2320) W/(m·K) (graphite) (119–165) W/(m·K) (amorphous) 1.59 W/(m·K) || (graphite) 140 W/(m·K)

| 7 || N || Nitrogen || 25.83 mW/(m·K) || || 26.0 mW/(m·K) || 0.02583 W/(m·K) || 0.02583 W/(m·K)

| 8 || O || Oxygen || 26.58 mW/(m·K) || || 26.3 mW/(m·K) || (gas) 0.02658 W/(m·K) (liquid) 0.149 W/(m·K) || 0.02658 W/(m·K)

| 9 || F || Fluorine || 27.7 mW/(m·K) || || || 0.0277 W/(m·K) || 0.0277 W/(m·K)

| 10 || Ne || Neon || 49.1 mW/(m·K) || || 49.8 mW/(m·K) (at p=0) || 0.0491 W/(m·K) || 0.0491 W/(m·K)

| 11 || Na || Sodium || 142 W/(m·K) || 1.41 W/(cm·K) || || 142 W/(m·K) || 140 W/(m·K)

| 12 || Mg || Magnesium || 156 W/(m·K) || 1.56 W/(cm·K) || || 156 W/(m·K) || 160 W/(m·K)

| 13 || Al || Aluminium || 237 W/(m·K) || 2.37 W/(cm·K) || || 237 W/(m·K) || 235 W/(m·K)

| 14 || Si || Silicon || 149 W/(m·K) || || || 149 W/(m·K) || 150 W/(m·K)

| 15 || P || Phosphorus || (white) 0.236 W/(m·K) || || || (white) 0.23617 W/(m·K) || 0.236 W/(m·K)

| 16 || S || Sulfur || (amorphous) 0.205 W/(m·K) || || || (amorphous) 0.205 W/(m·K) || 0.205 W/(m·K)

| 17 || Cl || Chlorine || 8.9 mW/(m·K) || || || 0.0089 W/(m·K) || 0.0089 W/(m·K)

| 18 || Ar || Argon || 17.72 mW/(m·K) || || 17.9 mW/(m·K) || 0.01772 W/(m·K) || 0.01772 W/(m·K)

| 19 || K || Potassium || 102.5 W/(m·K) || 1.024 W/(cm·K) || || 102.5 W/(m·K) || 100 W/(m·K)

| 20 || Ca || Calcium || 201 W/(m·K) || 2.00 W/(cm·K) || || 201 W/(m·K) || 200 W/(m·K)

| 21 || Sc || Scandium || 15.8 W/(m·K) || 0.158 W/(cm·K) || || 15.8 W/(m·K) || 16 W/(m·K)

| 22 || Ti || Titanium || 21.9 W/(m·K) || 0.219 W/(cm·K) || || 21.9 W/(m·K) || 22 W/(m·K)

| 23 || V || Vanadium || 30.7 W/(m·K) || 0.307 W/(cm·K) || || 30.7 W/(m·K) || 31 W/(m·K)

| 24 || Cr || Chromium || 93.9 W/(m·K) || 0.937 W/(cm·K) || || 93.9 W/(m·K) || 94 W/(m·K)

| 25 || Mn || Manganese || 7.81 W/(m·K) || 0.0782 W/(cm·K) || || 7.81 W/(m·K) || 7.8 W/(m·K)

| 26 || Fe || Iron || 80.4 W/(m·K) || 0.802 W/(cm·K) || || 80.4 W/(m·K) || 80 W/(m·K)

| 27 || Co || Cobalt || 100 W/(m·K) || 1.00 W/(cm·K) || || 100 W/(m·K) || 100 W/(m·K)

| 28 || Ni || Nickel || 90.9 W/(m·K) || 0.907 W/(cm·K) || || 90.9 W/(m·K) || 91 W/(m·K)

| 29 || Cu || Copper || 401 W/(m·K) || 4.01 W/(cm·K) || || 401 W/(m·K) || 400 W/(m·K)

| 30 || Zn || Zinc || 116 W/(m·K) || 1.16 W/(cm·K) || || 116 W/(m·K) || 120 W/(m·K)

| 31 || Ga || Gallium || 40.6 W/(m·K) || 0.406 W/(cm·K) || || (liquid) 29.4 W/(m·K) (solid) 40.6 W/(m·K) || 29 W/(m·K)

| 32 || Ge || Germanium || 60.2 W/(m·K) || || || 60.2 W/(m·K) || 60 W/(m·K)

| 33 || As || Arsenic || 50.2 W/(m·K) || || || 50.2 W/(m·K) || 50 W/(m·K)

| 34 || Se || Selenium || (amorphous) 0.519 W/(m·K) || || || (amorphous) 0.519 W/(m·K) || 0.52 W/(m·K)

| 35 || Br || Bromine || 0.122 W/(m·K) || || || 0.122 W/(m·K) || 0.12 W/(m·K)

| 36 || Kr || Krypton || 9.43 mW/(m·K) || || 9.5 mW/(m·K) (at p=0) || 9.43 W/(m·K) || 0.00943 W/(m·K)

| 37 || Rb || Rubidium || 58.2 W/(m·K) || 0.582 W/(cm·K) || || 58.2 W/(m·K) || 58 W/(m·K)

| 38 || Sr || Strontium || 35.4 W/(m·K) || 0.353 W/(cm·K) || || 35.4 W/(m·K) || 35 W/(m·K)

| 39 || Y || Yttrium || 17.2 W/(m·K) || 0.172 W/(cm·K) || || 17.2 W/(m·K) || 17 W/(m·K)

| 40 || Zr || Zirconium || 22.6 W/(m·K) || 0.227 W/(cm·K) || || 22.6 W/(m·K) || 23 W/(m·K)

| 41 || Nb || Niobium || 53.7 W/(m·K) || 0.537 W/(cm·K) || || 53.7 W/(m·K) || 54 W/(m·K)

| 42 || Mo || Molybdenum || 138 W/(m·K) || 1.38 W/(cm·K) || || 138 W/(m·K) || 139 W/(m·K)

| 43 || Tc || Technetium || 50.6 W/(m·K) || 0.506 W/(cm·K) || || 50.6 W/(m·K) || 51 W/(m·K)

| 44 || Ru || Ruthenium || 117 W/(m·K) || 1.17 W/(cm·K) || || 117 W/(m·K) || 120 W/(m·K)

| 45 || Rh || Rhodium || 150 W/(m·K) || 1.50 W/(cm·K) || || 150 W/(m·K) || 150 W/(m·K)

| 46 || Pd || Palladium || 71.8 W/(m·K) || 0.718 W/(cm·K) || || 71.8 W/(m·K) || 72 W/(m·K)

| 47 || Ag || Silver || 429 W/(m·K) || 4.29 W/(cm·K) || || 429 W/(m·K) || 430 W/(m·K)

| 48 || Cd || Cadmium || 96.6 W/(m·K) || 0.968 W/(cm·K) || || 96.6 W/(m·K) || 97 W/(m·K)

| 49 || In || Indium || 81.8 W/(m·K) || 0.816 W/(cm·K) || || 81.8 W/(m·K) || 82 W/(m·K)

| 50 || Sn || Tin || 66.8 W/(m·K) || 0.666 W/(cm·K) || || 66.8 W/(m·K) || 67 W/(m·K)

| 51 || Sb || Antimony || 24.4 W/(m·K) || 0.243 W/(cm·K) || || 24.4 W/(m·K) || 24 W/(m·K)

| 52 || Te || Tellurium || (1.97–3.38) W/(m·K) || || || (1.97–3.38) W/(m·K) || 3 W/(m·K)

| 53 || I || Iodine || 0.449 W/(m·K) || 0.45 W/(m·K) (at 300 K) || || 449 W/(m·K) || 0.449 W/(m·K)

| 54 || Xe || Xenon || 5.65 mW/(m·K) || || 5.5 mW/(m·K) (at p=0) || 0.00565 W/(m·K) || 0.00565 W/(m·K)

| 55 || Cs || Caesium || 35.9 W/(m·K) || 0.359 W/(cm·K) || || 35.9 W/(m·K) || 36 W/(m·K)

| 56 || Ba || Barium || 18.4 W/(m·K) || 0.184 W/(cm·K) || || 18.4 W/(m·K) || 18 W/(m·K)

| 57 || La || Lanthanum || 13.4 W/(m·K) || 0.134 W/(cm·K) || || 13.4 W/(m·K) || 13 W/(m·K)

| 58 || Ce || Cerium || 11.3 W/(m·K) || 0.113 W/(cm·K) || || 11.3 W/(m·K) || 11 W/(m·K)

| 59 || Pr || Praseodymium || 12.5 W/(m·K) || 0.125 W/(cm·K) || || 12.5 W/(m·K) || 13 W/(m·K)

| 60 || Nd || Neodymium || 16.5 W/(m·K) || 0.165 W/(cm·K) || || 16.5 W/(m·K) || 17 W/(m·K)

| 61 || Pm || Promethium || 17.9 W/(m·K) || 0.15 W/(cm·K) (est.) || || 17.9 W/(m·K) || 15 W/(m·K)

| 62 || Sm || Samarium || 13.3 W/(m·K) || 0.133 W/(cm·K) || || 13.3 W/(m·K) || 13 W/(m·K)

| 63 || Eu || Europium || 13.9 W/(m·K) (est.) || 0.139 W/(cm·K) (est.) || || 13.9 W/(m·K) || 14 W/(m·K)

| 64 || Gd || Gadolinium || 10.6 W/(m·K) || 0.105 W/(cm·K) (at 100 °C) || || 10.5 W/(m·K) || 11 W/(m·K)

| 65 || Tb || Terbium || 11.1 W/(m·K) || 0.111 W/(cm·K) || || 11.1 W/(m·K) || 11 W/(m·K)

| 66 || Dy || Dysprosium || 10.7 W/(m·K) || 0.107 W/(cm·K) || || 10.7 W/(m·K) || 11 W/(m·K)

| 67 || Ho || Holmium || 16.2 W/(m·K) || 0.162 W/(cm·K) || || 16.2 W/(m·K) || 16 W/(m·K)

| 68 || Er || Erbium || 14.5 W/(m·K) || 0.145 W/(cm·K) || || 14.5 W/(m·K) || 15 W/(m·K)

| 69 || Tm || Thulium || 16.9 W/(m·K) || 0.169 W/(cm·K) || || 16.9 W/(m·K) || 17 W/(m·K)

| 70 || Yb || Ytterbium || 38.5 W/(m·K) || 0.385 W/(cm·K) || || 38.5 W/(m·K) || 39 W/(m·K)

| 71 || Lu || Lutetium || 16.4 W/(m·K) || 0.164 W/(cm·K) || || 16.4 W/(m·K) || 16 W/(m·K)

| 72 || Hf || Hafnium || 23.0 W/(m·K) || 0.230 W/(cm·K) || || 23.0 W/(m·K) || 23 W/(m·K)

| 73 || Ta || Tantalum || 57.5 W/(m·K) || 0.575 W/(cm·K) || || 57.5 W/(m·K) || 57 W/(m·K)

| 74 || W || Tungsten || 173 W/(m·K) || 1.74 W/(cm·K) || || 173 W/(m·K) || 170 W/(m·K)

| 75 || Re || Rhenium || 48.0 W/(m·K) || 0.479 W/(cm·K) || || 48.0 W/(m·K) || 48 W/(m·K)

| 76 || Os || Osmium || 87.6 W/(m·K) || 0.876 W/(cm·K) || || 87.6 W/(m·K) || 88 W/(m·K)

| 77 || Ir || Iridium || 147 W/(m·K) || 1.47 W/(cm·K) || || 147 W/(m·K) || 150 W/(m·K)

| 78 || Pt || Platinum || 71.6 W/(m·K) || 0.716 W/(cm·K) || || 71.6 W/(m·K) || 72 W/(m·K)

| 79 || Au || Gold || 318 W/(m·K) || 3.17 W/(cm·K) || || 318 W/(m·K) || 320 W/(m·K)

| 80 || Hg || Mercury || 8.30 W/(m·K) || 0.0834 W/(cm·K) || || 8.30 W/(m·K) || 8.3 W/(m·K)

| 81 || T || Thallium || 46.1 W/(m·K) || 0.461 W/(cm·K) || || 46.1 W/(m·K) || 46 W/(m·K)

| 82 || Pb || Lead || 35.3 W/(m·K) || 0.353 W/(cm·K) || || 35.3 W/(m·K) || 35 W/(m·K)

| 83 || Bi || Bismuth || 7.97 W/(m·K) || 0.0787 W/(cm·K) || || 7.97 W/(m·K) || 8 W/(m·K)

| 84 || Po || Polonium || || 0.20 W/(cm·K) || || 0.2 W/(m·K) ||

| 85 || At || Astatine || 1.7 W/(m·K) || || || 1.7 W/(m·K) || 2 W/(m·K)

| 86 || Rn || Radon || 3.61 mW/(m·K) || || || 0.00361 W/(m·K) || 0.00361 W/(m·K)

| 88 || Ra || Radium || 18.6 W/(m·K) || || || 18.6 W/(m·K) || 19 W/(m·K)

| 89 || Ac || Actinium || 12 W/(m·K) || || || 12 W/(m·K) || 12 W/(m·K)

| 90 || Th || Thorium || 54.0 W/(m·K) || 0.540 W/(cm·K) || || 54.0 W/(m·K) || 54 W/(m·K)

| 91 || Pa || Protactinium || 47 W/(m·K) || || || 47 W/(m·K) || 47 W/(m·K)

| 92 || U || Uranium || 27.5 W/(m·K) || 0.276 W/(cm·K) || || 27.5 W/(m·K) || 27 W/(m·K)

| 93 || Np || Neptunium || 6.3 W/(m·K) || 0.063 W/(cm·K) || || 6.3 W/(m·K) || 6 W/(m·K)

| 94 || Pu || Plutonium || 6.74 W/(m·K) || 0.0674 W/(cm·K) || || 6.74 W/(m·K) || 6 W/(m·K)

| 95 || Am || Americium || 10 W/(m·K) || || || 10 W/(m·K) || 10 W/(m·K)

| 97 || Bk || Berkelium || 10 W/(m·K) || || || 10 W/(m·K) || 10 W/(m·K)

Thermal conductivities of the elements

Thermal conductivity

Notes

References

See also