High alumina refractory brick is a high-performance refractory material with over 48% alumina content. Sintered from premium bauxite at high temperatures, it outperforms ordinary clay bricks in high-temperature resistance, structural stability and corrosion resistance. As a key lining material for industrial furnaces, it is widely applied in metallurgy, cement, chemical and power industries, serving as a reliable solution for high-temperature industrial equipment protection.
Key Properties
This refractory brick features outstanding comprehensive performance for harsh industrial environments, effectively solving common furnace lining issues like deformation, peeling and short service life.
Refractoriness of 1750°C to 1800°C. High-grade versions withstand temperatures above 1800°C, maintaining stable performance without softening or melting during long-term high-temperature operation.
Load softening temperature of 1420°C–1500°C resists high-temperature pressure deformation, preserving furnace body integrity and lowering equipment damage risks.
Optimized mullite structure effectively resists erosion from molten slag, metal liquid and corrosive flue gas, preventing lining damage and extending furnace service life.
Tolerates frequent temperature fluctuations without cracking or peeling. High compressive strength enables it to withstand long-term material scouring and mechanical friction.
Low thermal conductivity reduces furnace heat loss and improves energy efficiency. Minimizes maintenance and replacement frequency, cutting long-term operational costs.
Main Industrial Applications
Available in multiple grades (48%–80% Al₂O₃), these bricks fit diverse high-temperature scenarios. They are ideal for metallurgical furnaces, steel ladles and heating furnaces in the steel industry. They also serve as durable lining for cement rotary kilns, lime kilns, industrial boilers, chemical reaction furnaces, glass and ceramic kilns.
Why Choose Us
We provide full-series high alumina refractory bricks in standard and custom shapes, including light and heavy types. Made of high-purity bauxite via strict sintering processes, our products feature stable quality, precise dimensions and long service life. We offer customized solutions, professional selection guidance and full after-sales service for global clients.
Contact us for free technical consultation and quotation for high-quality high alumina refractory bricks!
Post time: May-22-2026
