Tabular alumina is a kind of pure sintered alumina,which is sintered and completely shrink without adding any additive ,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 treament,tabular alumina is used for refractoris and castable characterized by good thermal shock stability and flexural strength.
Function | Guarantee | |
Chemical Composition% | AL2O3 | 99.0%min |
Na2O | 0.40%max | |
SiO2 | 0.15%max | |
Fe2O3 | 0.10%max | |
Bulk Density g/cm3 | 3.50min | |
Apparent porosity % | 5.0max | |
Water Absorption % | 1.5max | |
Magnetic % | 0.02max | |
Grit size(mm) | 5-8 3-5 1-3 0-1mm | |
Fine grit | 200mesh,325mesh |