Lightweight Ultra-Low Conductivity Mullite Brick

Lightweight ultra-low conductivity mullite bricks are a type of high-strength, low-thermal-conductivity refractory material. While retaining the advantages of traditional mullite bricks, such as high-temperature resistance and corrosion resistance, they achieve lightweight and energy efficiency through a large number of uniformly distributed micropores, making them an ideal choice for high-efficiency industrial furnaces. Typically, they contain 65%-75% Al₂O₃, with a bulk density between 0.6-1.75 g/cm³, far lower than dense refractory bricks. Their refractoriness can reach over 1790℃.