Fireclay brick thermal conductivity

The thermal conductivity of fireclay brick varies depending on the temperature and its composition, such as the amount of alumina and silica in the brick. Generally, the thermal conductivity of fireclay brick ranges from 0.5 to 1.5 W/(m·K) at room temperature and increases with increasing temperature.

At a temperature of around 1000°C, the thermal conductivity of fireclay brick is typically between 1.0 to 1.5 W/(m·K). However, as the temperature continues to rise, the thermal conductivity of fireclay brick increases significantly due to the increasing conductivity of the refractory material. At temperatures above 1500°C, the thermal conductivity of fireclay brick can exceed 5 W/(m·K).

The thermal conductivity of fireclay brick is an important property for determining its performance in high-temperature applications. A low thermal conductivity ensures that the heat is retained within the furnace, leading to efficient energy consumption and reduced heat loss. As a result, fireclay brick is often used in industrial furnaces, kilns, and incinerators, where it is required to withstand high temperatures and provide good thermal insulation.