1800°C Alumina Hollow Sphere Refractory Bricks for Extreme Heat

These refractory bricks are engineered to endure temperatures up to 1800°C. The key lies in the use of high - purity alumina hollow spheres as the main raw material. Alumina is well - known for its excellent high - temperature stability, and the hollow sphere structure further enhances this property. It reduces the thermal conductivity of the bricks, minimizing heat loss while effectively resisting the intense heat in furnaces, kilns, and other high - temperature equipment.

01-05-2026