Thermal conductivities of the elements
Chemical data page
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This page lists the thermal conductivity of the common stable isotope for each of the elements.
Thermal conductivity
| Element | Usable value | Source data | |||||
|---|---|---|---|---|---|---|---|
| No. | Sym. | Name | [a][1] | [b][2] | [c][3] | [d][4] | |
| 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) [sic] | 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) [sic] | 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) [sic] | 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) | ||