Refractory grade tabular alumina for firebricks

Tabular alumina is a purely sintered α-corundum material that is a compact body rapidly sintered at temperatures above 1900 ° C without sintering aids. Tabular alumina has approximately 200 μm and well-developed hexagonal plate-like α-corundum crystals. Its excellent thermal volume stability and thermal shock resistance can be attributed to the following special microstructure of platy corundum: less open pores, large crystals, closed spherical pores due to recrystallization trap during rapid sintering.
Tabular alumina has high heat resistance, mechanical strength, abrasion resistance, high chemical purity, excellent insulation properties, acid and alkali corrosion resistance.
Tabular alumina is the preferred aggregate of amorphous and shaped high performance refractory materials, widely used in steel, casting, petrochemical, ceramics and incineration industries as well as electrical insulation, kiln furniture and catalyst carriers. Finely ground tabular alumina powder is an excellent product that used as a filler in epoxy resins or resin systems. It is used to obtain the desired high dielectric strength, thermal conductivity and wear resistance.


● Tabular alumina is the perfect refractory raw material.

● Tabular alumina can replace brown fused alumina and white fused alumina in some application.

● Tabular alumina can use in kiln furniture and for metal filtration.

● Tabular alumina can be used in a variety of industries, including steel, foundry, cement, glass, petrochemical, ceramic and waste incineration.

▼Tabular Alumina Chemical & Physical Analysis (Typical Value)

●Chemical Composition (%)

Al2O3 by difference                   Typical >=99.3

NaO2                                   <=0.40

SiO2                                    <=0.20

Fe2O3                                  <=0.10

Ca O                                    <=0.10

●Physical Properties

Bulk Specific Gravity (g/cm3)                 >=3.5

Apparent Porosity (%)                       <=5.0

Water Absorption (%)                        <=1.5

Service Temperature (℃)                     1960

All data based upon Runlong Enterprise standard test methods.

▼Available Grit Size: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 0.5-1mm, 0-0.3mm, 0.3-0.6mm

Fine Powder: -100 mesh, -180 mesh, -220 mesh, -325 mesh

Other special specifications could be supplied as required.

3-5mm Tabular Alumina
1-3mm Tabular Alumina
Tabular Alumina

Jumbo Bag of 1 Ton, 1.2 Tons or 1.3 Tons
25kg Woven Plastic Bag, 40 Bags in a jumbo Bag
25kg Woven Plastic Bags, 40 Bags on a Wood Pallet
25kg Paper Bag, 40 Bags on a Wood Pallet

Other package also could be supplied as required.

Tabular Alumina
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