Electrical Conductivity of Common Materials
Electrical conductivity is a measure of a material’s ability to conduct electric current. On this page, you can find the electrical conductivity values for common materials in Siemens per meter (S/m) unit.
Unless stated otherwise, all values are taken at standard room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)
| Air | 1 ×10-15 |
| Aluminum | 37.7 ×106 |
| Annealed copper | 58 ×106 |
| Beryllium | 31.3 ×106 |
| Cadmium | 13.8 ×106 |
| Calcium | 29.8 ×106 |
| Carbon - amorphous | 1.25 ×103 |
| Carbon - diamond | 1 ×10-13 |
| Carbon - graphite (parallel to basal plane) | 2 ×105 |
| Carbon - graphite (perpendicular to basal plane) | 3.3 ×102 |
| Carbon steel (1010) | 6.99 ×106 |
| Chromium | 7.74 ×106 |
| Cobalt | 16 ×106 |
| Constantan | 2.04 ×106 |
| Copper | 59.6 ×106 |
| Deionized water | 4.2 ×10-5 |
| Drinking water | 0.0005 - 0.05 |
| Fused quartz | 1.3 ×10-18 |
| Gallium arsenide (GaAs) | 1 ×10-8 |
| Galinstan | 3.46 ×106 |
| Gallium | 7.1 ×106 |
| Germanium | 2.17 |
| Glass | 1 ×10-11 |
| Gold | 41.1 ×106 |
| Grain oriented electrical steel | 2.17 ×106 |
| Hard rubber | 1 ×10-14 |
| Indium | 11.6 ×106 |
| Iridium | 19.7 ×106 |
| Iron | 9.93 ×106 |
| Lead | 4.55 ×106 |
| Lithium | 10.8 ×106 |
| Magnesium | 22.6 ×106 |
| Manganese | 6.94 ×105 |
| Manganin | 2.07 ×106 |
| Mercury | 1.02 ×106 |
| Molybdenum | 18.7 ×106 |
| Nichrome | 6.7 ×105 |
| Nickel | 14.3 ×106 |
| Niobium | 6.93 ×106 |
| Osmium | 10.9 ×106 |
| Palladium | 9.5 ×106 |
| PET | 1 ×10-21 |
| Platinum | 9.43 ×106 |
| Potassium | 13.9 ×106 |
| Rhenium | 5.42 ×106 |
| Rhodium | 21.1 ×106 |
| Rubidium | 7.79 ×106 |
| Ruthenium | 14.1 ×106 |
| Sea water | 4.5 - 5.5 |
| Silicon | 4.35 ×10-4 |
| Silver | 63 ×106 |
| Sodium | 21 ×106 |
| Stainless steel | 1.45 ×106 |
| Strontium | 7.62 ×106 |
| Sulfur | 1 ×10-16 |
| Swimming pool water | 0.25 |
| Tantalum | 7.61 ×106 |
| Technetium | 6.7 ×106 |
| Teflon (PTFE) | 1 ×10-25 |
| Thallium | 6.17 ×106 |
| Thorium | 6.53 ×106 |
| Tin | 9.17 ×106 |
| Titanium | 2.38 ×106 |
| Tungsten | 17.9 ×106 |
| Wood - damp | 1 ×10-4 |
| Wood - oven dry | 1 ×10-16 |
| Zinc | 16.9 ×106 |
The electrical conductivity values in this table are approximate and can vary depending on factors such as temperature, pressure, and impurities in the materials.