High-Purity Tabular Alumina with Al₂O₃ ≥ 99.2%, Bulk Density ≥ 3.50 g/cm³, Low Porosity, and Excellent Corrosion Resistance

Tabular Alumina is a high-purity sintered alpha alumina material with excellent thermal stability, low porosity and high mechanical strength. HUAO provides refractory grade tabular alumina for castables, steel industry linings and other high-temperature applications. Manufactured in our ISO 9001, ISO 14001, and ISO 45001 certified production facility through high-temperature sintering without additives, HUAO Tabular Alumina features well-developed hexagonal tablet-shaped alpha-alumina crystals with low open porosity.

With a high purity profile of Al₂O₃ ≥ 99.2% and low silica (SiO₂ ≤ 0.09%) and iron (Fe₂O₃ ≤ 0.02%) impurities, our factory-direct aggregate delivers exceptional chemical resistance, high mechanical strength, and superior thermal stability up to extreme temperature thresholds.

• Ultra-High Chemical Purity
  High refractory alumina content (Al₂O₃ ≥ 99.2%) with strictly controlled Fe₂O₃ (≤ 0.02%) and SiO₂ (≤ 0.09%) to prevent premature vitreous phase formation.
• High Bulk Density & Low Porosity
  Bulk density ≥ 3.50 g/cm³ paired with low apparent porosity (≤ 5.0%) ensures maximum structural integrity and slag penetration resistance.
• Exceptional Thermal Shock Resistance
  Internal closed spherical pores cushion thermal stress during rapid temperature cycling.
• Low Moisture Absorption
  Moisture levels maintained at ≤ 1.5% optimize water demand and hydration reactivity during refractory castable batching.

• Steel Industry Refractories

  Tabular Alumina provides excellent corrosion resistance and thermal shock resistance for steel ladle linings and continuous casting applications.
• Refractory Castables
  It improves density, mechanical strength and durability of high-performance alumina castables.

• Petrochemical Furnaces

  Its low porosity and chemical stability make it suitable for demanding high-temperature furnace environments.

HUAO supplies tabular alumina in various standard aggregate mesh sizes (0-1mm, 1-3mm, 3-6mm, 5-8mm) and fine powders (325 mesh). Custom sizing distributions, anti-moisture 25kg bags, and 1000kg bulk sacks are fully customizable to meet specific client production parameters.

We also provide other alumina products. If you would like to learn more about Alumina Ceramic Balls, please click here.