- Time:May 15, 2023
The thermal conductivity of castable refractory varies depending on several factors, such as the type and composition of the castable, the curing time and temperature, and the operating temperature. Generally, castable refractories have lower thermal conductivity than dense refractory bricks, which makes them a good choice for insulating applications.
The thermal conductivity of castable refractory can range from 0.5 W/mK to 2.5 W/mK. For example, lightweight insulating castables typically have a thermal conductivity of around 0.5-1.0 W/mK, while dense heavy-duty castables may have a thermal conductivity of around 2.0-2.5 W/mK.
It's important to note that the thermal conductivity of castable refractory is greatly influenced by the porosity of the material. A higher porosity generally results in lower thermal conductivity, while a denser or more compact castable will have higher thermal conductivity.
Overall, the thermal conductivity of castable refractory must be carefully considered when selecting a suitable product for a particular application, as it can impact the energy efficiency, performance, and safety of high-temperature equipment.
