Mullite brick is a kind of refractory material. It is mainly composed of mullite (3Al₂O₃·2SiO₂). The production process usually involves high - temperature sintering to ensure its excellent performance.

Advantages

High - temperature resistance: Mullite brick can withstand relatively high temperatures. It has good stability at high temperatures and can maintain its structural integrity, generally able to bear temperatures up to about 1800°C. Good thermal shock resistance: It can endure rapid temperature changes without cracking easily. This property is crucial for applications where the temperature fluctuates frequently. Chemical stability: It shows excellent resistance to chemical corrosion. It is less affected by acidic and alkaline substances, making it suitable for environments with various chemical substances.

Component	Content
Mullite (3Al₂O₃·2SiO₂)	Main component, usually above 70%
Alumina (Al₂O₃)	Variable content, depending on the grade, about 20 - 30%
Silica (SiO₂)	Variable content, about 10 - 20%
Trace elements (such as Fe₂O₃, TiO₂, etc.)	Small amounts, usually less than 5% in total