White Aluminum Oxide

This media is pure, clear white aluminum oxide, it is the most friable aluminum oxide. Due to its high purity large crystal size, crystals fracture comparatively swiftly, constantly exposing fresh cutting crystals to the work piece.

White Aluminum Oxide is offered in a wide range of sizes from fine to extra course. It can be recycled several times depending on whether it is used in a suction or pressure blast system.

White Aluminum Oxide can be used for blast cleaning, etching, polishing, lapping, dental polishing and many other applications.

Typical Chemical Analysis

Al2O3 (by difference)

99.76%

SiO2

0.02%

Fe2O3

0.02%

Na2O

0.20%

 

TYPICAL PHYSICAL PROPERTIES

Crystallography

Alpha alumina, in the hexagonal crystal system

Color

White

Specific Gravity

3.96

Knoop100 Hardness

2150

Shape

Blocky, with sharp edges

Average crystal size

2,500 microns, no matrix

Porosity: Total Volume

5.5 %

Grading (Grain)

ANSI B74.12-2001, Table 2 OR FEPA 41-1:2006

Grading (Powder)

ANSI B74.10-2001 OR FEPA 42-2:2006

Bulk Density

ANSI B74.4-1992 (R2007)

Magnetics

ANSI B74.19-2002 (R2007)

 

TYPICAL BULK DENSITY

Grit

g/cc

Grit

g/cc

Grit

g/cc

Grit

g/cc

12

1.74 – 1.84

30

1.75 – 1.85

70

1.68 – 1.78

150

1.59 – 1.69

14

1.76 – 1.86

36

1.74 – 1.84

80

1.68 – 1.78

180

1.56 – 1.66

16

1.78 – 1.88

46

1.74 – 1.84

90

1.63 – 1.73

220

1.53 – 1.63

20

1.77 – 1.87

54

1.71 – 1.81

100

1.62 – 1.72

   

24

1.76 – 1.86

60

1.71 – 1.81

120

1.64 – 1.74