Color

Brown

Basic Mineral

α-Al2O3

True Density

3.90g/cm3

Bulk Density

1.68-1.95g/cm3

Mohs Hardness

9.0

Microhardness

HV1800-2200

Al2O3

95.88%

TiO2

2.50%

SiO2

0.80%

Fe2O3

0.09%

Grit Size

Al2O3

TiO2

SiO2

Fe2O3

F12-F80

>96.0%

1.50-3.50%

1.3%

0.3%

F90-F150

>95.2%

F180-F220

>95.0%

F220 Finer

>93.0%

Grit Size

Al2O3

TiO2

SiO2

Fe2O3

0-1mm

>95.2%

<3.5%

<1.0%

<0.2%

1-3mm

3-5mm

5-8mm

200mesh

>95.0%

<3.5%

<2.0%

<0.4%

325mesh