Which Metal Is the Best Conductor of Heat?

Which Metal Is the Best Conductor of Heat?

Which Metal Is the Best Conductor of Heat?

Of the elemental metals, silver is the best conductor of heat. It has a thermal conductivity of 235, meaning that it is able to transmit that amount of heat energy a single foot per hour per degree Fahrenheit.

Since silver is rare and expensive, the second best thermal conductor, copper, is often used instead in engineering applications. Copper has a thermal conductivity of 223 at 68 degrees Fahrenheit. At higher temperatures, its conductivity drops, but even at 1112 degrees Fahrenheit, it still has a conductivity of 204. The next best metal, gold, has a thermal conductivity of 182 at room temperature.