Light Weight Silica Insulation Brick

High alumina insulation brick is a type of refractory brick that is made primarily from high-purity alumina, typically with an alumina content of 48% to 95%. These bricks are known for their excellent insulating properties, high-temperature resistance, and low thermal conductivity. They are widely used in various industrial applications where thermal insulation is critical.

Lightweight silica insulation brick is a type of refractory brick used for high-temperature insulation applications. It is made from high-purity silica combined with a lightweight aggregate and a binder to create a lightweight and thermally efficient material. The lightweight aggregate used in the production of silica insulation bricks helps to reduce the density of the material, making it lighter and easier to handle. The aggregate can vary but commonly includes materials such as expanded perlite, vermiculite, or lightweight clay. The choice of aggregate depends on factors such as desired insulation properties and application requirements.  

High alumina brick is a kind of refractory material. The main component of this refractory brick is Al2O3. If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent. For example, European countries stipulate that the lower limit of Al2O3 content for high-aluminum refractory materials is 42%. In China, high alumina bricks are usually divided into three grades according to their Al2O3 content: Grade I - Al2O3 content >75%; Grade II - Al2O3 content 60-75%; Grade III - Al2O3 content 48-60%.