White Fused Aluminium Oxide (Al2o3 99%min)

These White Fused Aluminium Oxide (AL2O3 99%MIN) is made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
Chemical composition and physical characteristics:
FunctionModel NumberMain Chemical Composition (%)
Al2O3SiO2Na2OFe2O3
AbrasiveF10-F8099.8min0.04max0.22max0.04max
F90-F18099.7min0.04max0.25max0.04max
F220-F24099.55min0.04max0.25max0.04max
PolishingF280-F60099.55min0.10max0.26max0.05max
F800-F150099.55min0.14max0.30max0.06max
F200099.20min0.15max0.32max0.07max
F250099.00min0.15max0.35max0.08max
Refractory material0-1,1-3,3-5,5-8mm99.60min0.04max0.20max0.04max
180,200,240,280,320F99.50min0.05max0.30max0.04max
ItemProperty
ColorWhite
Bulk density1.75-1.95g/cm3
Grain density3.90g/cm3
Morse hardness9
Melting point2250A C
Refractoriness1850A C
3.Usage:
F10-F240
(1)It can make the abrasive tool to grind the great hardness material, such as the high speed steel, stainless steel and high carbon steel.
(2)It also usually used for sandblasting, such as precious metal, the gold, crystal, the glass and wear.

F280-F2500
(1)It can be used in grinding and polishing the gold, silver jewellery