Why Choose Tabular Alumina for High Performance Refractory Linings?

Tabular alumina is a pure, fully dense sintered alpha-alumina material produced without additives. Through high-temperature sintering above 1900°C, large tablet-like alpha-alumina crystals form, creating a unique microstructure characterized by closed intra-crystalline pores. This dense internal matrix gives the material high thermal shock resistance, low water absorption, and high mechanical strength under extreme temperatures.

Chemical purity is a critical requirement for high-performance refractory aggregates. HUAO provides tabular alumina with high Al₂O₃ content (≥ 99.2%) and ultra-low Na₂O levels (≤ 0.4%) , preventing the formation of low-melting-point phases at elevated temperatures. These characteristics make it superior to fused alumina in applications requiring thermal shock resistance, erosion resistance, and structural stability.

In industrial applications, tabular alumina serves as a primary aggregate in unshaped refractories and shaped bricks. It is extensively used in steel ladle purges, continuous casting slide gates, cement kiln preheaters, and high-temperature petrochemical reactors. Its thermal creep resistance minimizes structural deformation, extending campaign life and reducing maintenance costs.