Fused Cast Block Magnesia Chrome Brick Manufacturer

Mullite Insulation Brick

Al2O3 (%) ≥: 42 - 72

Fe2O3 (%) ≤: 0.5 - 1.0

Density (g/cm³) ≤: 0.6 - 1.1

Cold pressing strength (MPa) ≥: 1.5 - 3.5

Standard size: 230*114*65 mm

The advantages of mullite insulation bricks

Outstanding heat insulation performance

The heat insulation performance of mullite insulation bricks is well-known. Due to its low thermal conductivity, it can prevent heat loss, making it an ideal insulation material for providing heat insulation in high-temperature environments. 

Lightweight materials

Mullite bricks have very stable performance in terms of reducing the atmosphere. In particular, the calcium element contained in them gives them corrosion resistance and enables them to operate stably at high temperatures for a long time. 

Thermal shock resistance

The mullite insulation bricks exhibit outstanding thermal shock resistance, enabling them to withstand the thermal shocks caused by displacement. Whether it is a sudden temperature rise or drop, the mullite insulation bricks can maintain their integrity without cracking or damage. This excellent performance makes them highly suitable for industrial furnaces and other high-temperature environments. 

Corrosion resistance

Although magnesia-alumina refractory bricks are lightweight, they have a stable structure, can withstand great pressure, and possess excellent compressive strength.

The application of mullite insulation bricks

Glass industry

Mullite insulation bricks are commonly used in the lining of glass kilns, glass quenching linings, glass melting furnaces, glass crucibles, etc. They possess excellent refractory properties, thermal insulation properties, and slag resistance, ensuring the stability, efficiency and quality of the glass production process. 

Ceramic industry

Mullite insulation bricks are usually used as the inner lining of ceramic kilns, the inner lining of ceramic drying furnaces, and the inner lining of sintering furnaces. Using high-alumina insulation bricks can provide insulation performance and heat insulation effect. 

Steel Industry

Mullite insulation bricks are usually used in the linings of blast furnaces, hot air furnaces, steel ladles, and the top of the furnace, etc. They can improve the safety of the working environment and enhance production efficiency. 

Petroleum industry

Mullite insulation bricks are commonly used in gas furnace equipment, furnace linings, heat exchange equipment, etc. High-alumina insulation bricks can extend the service life of petroleum equipment and maintain stable temperatures.