1.Description:
A dense refractory material, our tabular alumina is a well-sintered, crystalline alpha alumina used as both a refractory aggregate and as fines addition to the matrix.Tabular Alumina is a pure sintered α-alumina materials that has been fully densified by rapid-sintering without the use of sintering aids at temperature in excess 1900°c.
2.Characteristics:
It characterized with low porosity, high fire proof, high corrosion proof, high scour proof,high stability of temperature shock,good tension and tenacity,stable chemical stability.
3.Application:
It has been widely used as the material of choice in unshaped and shaped high performance refractories in a variety of industries,such as steel, foundry,cement,glass petrochemical.
4.Specification:
Items | Unit | Guarantee Value | Typical Value | |
Chemical Composition | Al2O3 | % | 99.00 min | 99.5 |
SiO2 | % | 0.20 max | 0.09 | |
Fe2O3 | % | 0.10 max | 0.07 | |
Na2O | % | 0.40 max | 0.20 | |
Magnetic | % | 0.02 max | 0.01 | |
Bulk Density | g/cm3 | 3.50 min | 3.59 | |
Absorbing Water Rate | % | 1.0 max | 0.7 | |
Porosity Rate | % | 4.0 max | 3.00 | |
Grain Size | mm | 8-5, 5-3, 3-1,1-0 | ||
Fine Powder | mesh | -220, 325F |