Tabular alumina of RuiShi Brand is a kind of pure sintered corundum, which is sintered and completely shrink without adding any additive, such as MgO or B2O, with coarse crystals and well-developed α-Al2O3 crystal structure. The tabular crystal structure is characterized by narrow pores, with more closed porosity, almost the same apparent porosity compare with fused corundum, high purity, good stability volume density, tiny refiring shrink. After high temperature treatment, tabular alumina is used for refractoris and castable characterized by good thermal shock stability and flexural strength. But the price is higher than the other alumina.
Performance:Tabular alumina is characterized by good heating volume temperature performance and good thermal shock resistance.
Main applications:Tabular alumina is the prefect refractory raw material, which is widely used as the aggregate for producing various alumina refractory, it also can be used in other monolithic refractory. It can replace fused alumina and white fused alumina in some application position, and improve the performance of refractory material.
Tabular alumina for refractory
Purpose | Specification | Chemical composition (%) | Volume Density(g/cm3) | Apparent porosity(%) | ||||
Al2O3 | Na2O | SiO2 | Fe2O3 | |||||
For refractory | Size | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥99.0 | ≤0.4 | ≤0.3 | ≤0.1 | ≥3.5 | ≤5.0 |
Powder | 180#-0 240#-0 320#-0 | ≥98.5 | ||||||
Other specs can be supplied as clients' request.
If you need more details about our products, just feel free to contact me.
