12# and 14# brown fused aluminum oxide

Brown fused alumina

Chemical Composition

A GRADE

Al2O3       95%min

Fe2O3       0.5%max

SiO2        1.8%max

TiO2        1.5-3.8%

B GRADE

Al2O3       70-80%

Fe2O3       8-15%

SiO2        12-15%

TiO2        3-5%

C GRADE

Al2O3       50-65%

Fe2O3       12-20%

SiO2         15-25%

TiO2           4-6%

Physical Properties

Bulk density 1.53-1.99g/cm3

Specific Gravity 3.50-3.96g/cm3

Mohs Hardness  8-9