Resistivities for common metals
The following table shows the resistivities of several materials. The values are correct at 20 degrees Celsius.
| Element | Resistivity at 20 °C (Ω.m) |
| Aluminum | 2.82 x 10-8 |
| Carbon (Graphite) | 3.5 x 10-5 |
| Constantan | 4.9 x 10-7 |
| Copper | 1.7 x 10-8 |
| Germanium | 4.6 x 10-1 |
| Glass | 1010 to 1014 |
| Gold | 2.44 x 10-8 |
| Iron | 1.0 x 10-7 |
| Lead | 2.2 x 10-7 |
| Manganin | 4.82 x 10-7 |
| Mercury | 9.8 x 10-7 |
| Platinum | 1.1 x 10-7 |
| Quartz (fused) | 7.5 x 1017 |
| Silicon | 6.40 x 102 |
| Silver | 1.59 x 10-8 |
| Tungsten | 5.6 x 10-8 |
References:
http://en.wikipedia.org/wiki/Resistivity
http://hyperphysics.phy-astr.gsu.edu/hbase/Tables/rstiv.html