White Aluminum Oxide Fine Powder for Precision Casting

White fused alumina is from the reduced fusion of high purity alumina powder containing aluminium oxide(Al2O3). White fused alumina has a very high refractory temperature and acid resistance. Alkali corrosion resistance is stable in chemical content and has high true gravity/density, low porosity rate, and thermal shock resistance. It’s an excellent corundum aluminium oxide refractory material. White fused alumina is an essential high-end material for producing shaped and unshaped refractory products.

Chemical Composition
Al2O3≥99.3%
SiO2≤0.15%
Fe2O3≤0.05%
Na2O≤0.30%
Bulk Density g/cm3≥3.50
True Density g/cm3≥3.95
ApplicationGrain size
AbrasiveF8#-60#
70#-150#
180#-240#
RefractoryFRACTION0-1 mm
1-3 mm
3-5 mm
5-8 mm
8-12 mm
Fine Powder100 mesh
220 mesh
325 mesh

Applications of white White Aluminum Oxide Fine Powder 325#:

  • Refractory castable, Kiln construction.
  • Foundry coating paint for casting for shell moulding.
  • Foundry coating for Precision casting and 3D printing.
  • Thermal conductive glues or additives.

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