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Tabular alumina is produced from high-purity alumina as raw material. It is first ground and formed into spherical pellets, and then sintered at high temperature. It has a large crystal size and consists of well-developed plate-like α-Al₂O₃ crystals.
It features low porosity with mostly closed pores, high purity, and excellent volume stability at high temperatures. It also has outstanding thermal shock resistance, creep resistance, and resistance to spalling.
Tabular alumina is widely used in refractory bricks such as Al-C, Al-Mg-C, Mg-Al-C, magnesia-spinel, and Al-Cr systems. It can also be used as an alumina-enriching additive in high-alumina monolithic refractories. It is broadly applied in steelmaking, foundry, and ceramic industries.
Physical and Chemical Properties:
Product Name | Specifications |
Tabular Alumina (Barmac Processed) | Al2O3 : 99% Min. |
Fe2O3: 0.10% Max. | |
Na2O: 0.35% Max. | |
SiO₂: 0.10% Max. | |
H2O: 0.20% Max. | |
Water Absorption: 1.50% Max | |
Porosity: 5% Max | |
Bulk Density: 3.55 g/cc Min |
Packaging:
1.Outer woven bag with inner plastic lining, net weight 1000 kg per bag, top and bottom open.
2.25 kg kraft paper bags, 40 bags per pallet, wrapped with stretch film on the outside.