Chemical / Physical Composition
Items
Granule
Specifications
Typical
values
Al2O3(%)
≥99.5
99.52
SiO2(%)
≤0.09
0.02
Na2O(%)
≤0.4
0.25
Magnetic Fe
≤0.02
0.002
Bulk density
≥3.55
3.58
Apparent porosity
≤4.0
2.5
Water absorption
≤1.2
0.70
Note: 1. Al2O3 is subtracted by difference.
(2) Volume density is generally 6-3 mm.
Particle distribution
Characteristics：
—High Bulk Density，better, high temperature volume stability.
—Low Water absorption，reduce the water addition for castable and bonding agent for shaped refractory;
—Low Apparent porosity and impurities，increase the slag corrosion resistance at severe working conditions；
—Better grain shape，little flaky grain，increase the fluidity of the castable；
— high thermal thock resistance, reducing the cracks and damage as a result of temperature change.
Higiant Tabular Alumina TAS apply to the production of purging plug, slide gate plates, tundish function refractory, castable lining for big induction furnace. TAS can improve the thermal shock resistance, slag corrosion resistance and high temperature volume stability,increase service life and reduce consumption.
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