Physical Index of White Fused Alumina:
|
Color |
White |
|
Basic Mineral |
α-Al2O3 |
|
True Density |
3.96g/cm3 |
|
Bulk Density |
1.75-1.95g/cm3 |
|
Microhardness |
HV2200-2300 |
|
Mohs Hardness |
9.0 |
|
Melting Point |
2250℃ |
Chemical Composition of White Fused Alumina:
Typical Value:
|
Al2O3 |
99.65% |
|
Na2O |
0.25% |
|
Fe2O3 |
0.04% |
|
SiO2 |
0.03% |
Abrasives Grade:
|
Grit Size |
Al2O3 |
Na2O |
|
F12-220 |
>99.2% |
<0.35% |
|
F230-400 |
>99.2% |
<0.4% |
|
F500-1200 |
>99.0% |
<0.5% |
Refractory Grade:
|
Grit Size |
Al2O3 |
Na2O |
|
0-1mm |
>99.2% |
<0.4% |
|
1-3mm |
>99.2% |
<0.4% |
|
3-5mm |
>99.2% |
<0.4% |
|
200mesh |
>99.0% |
<0.5% |
|
325mesh |
>99.0% |
<0.5% |



