Is fire brick conductive?

Fire bricks are refractory bricks that are designed to withstand high temperatures without significant loss of strength or structural integrity. Whether or not fire bricks are conductive depends on their composition and other factors.

Most fire bricks are made from materials with very low thermal conductivity, such as alumina, silica, magnesia, or a combination of these materials. This low thermal conductivity helps to reduce heat transfer and prevent the spread of flames in case of a fire.

However, some fire bricks may contain conductive components, such as metal reinforcements or inserts, which could affect their overall conductivity. In addition, the thermal conductivity of a fire brick can vary depending on its density, porosity, and other factors.

Overall, while fire bricks may have some degree of conductivity, they are generally designed to have very low thermal conductivity to help insulate high-temperature equipment and prevent heat loss. The specific conductivity of a fire brick will depend on its composition, manufacturing process, and other factors, and should be taken into account when selecting refractory materials for a particular application.