Item # 220 Brown Fused Aluminum Oxide, Brown Fused Blasting Aluminum Oxide

Brown fused aluminum oxide is an extremely tough and durable grain. It is widely used in grinding wheels, sandpaper, blasting media, metal preparation, laminates, coatings, lapping, polishing, grinding and many other applications.

Product NameBrown Fused Blasting Aluminum Oxide
Item #220 Brown Fused Aluminum Oxide
Grit/Sieve Size220
Microns (Median)63
Physical FormBlocky, solid angular
Hardness - Knoop Scale2050
Water SolubilityInsoluble
Typical Chemical Analysis
Al2O3 (by difference) 96.00%
TiO2 2.70%
SiO2 0.70%
Fe2O3 0.10%
CaO 0.15%
MgO 0.30%
CrystallographyAlpha alumina, hexagonal crystal
ShapeBlocky with sharp edges
Bulk Density2.17 – 1.61 gm/cm3 depending on size
Shelf LifeIndefinite
Inches/mm (avg.)0.0025/0.063
Specific gravity (g/cm3)3.98

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