| Customization: | Available |
|---|---|
| Application: | Centerless Grinding, Creep Feed Grinding, Surface Grinding |
| Grit Size: | Fine |
|
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Factory Price High Hardness Alumina Purity 68% 92% 95% Ceramic Alumina Grinding Ball for Wet Dry Grinding Machine
|
Item
|
High alumina grinding ceramic ball |
Middle alumina grinding ceramic ball |
||
|
Micro-crystal middle-alumina |
Carborundum middle alumina |
|||
|
|
92%Al2O3
|
95%Al2O3
|
65-75%Al2O3
|
60-70%Al2O3
|
|
Al2O3(%)
|
>92
|
95
|
65-75
|
60-70
|
|
SiO2(%)
|
3.81
|
3
|
30-15 20-15
|
60-70
|
|
Fe2O3(%)
|
0.06
|
0.05
|
0.41
|
<0.5
|
|
TiO2(%)
|
0.02
|
0.04
|
1.7
|
1.8
|
|
Other(%)
|
2.53
|
1.9
|
5
|
10
|
|
Bulk density(g/cm3)
|
3.65
|
3.68
|
2.93-3.0
|
2.90-3.0
|
|
Water absorption
|
<0.01
|
<0.005
|
<0.01
|
<0.05
|
|
Moh's hardness(grade)
|
9
|
9
|
>8
|
>8
|
|
Compression strength
|
>2000
|
2100
|
>1000
|
>1000
|
|
abrasion
|
0.01
|
0.0084
|
0.02
|
0.03
|
|
color
|
White
|
White
|
Yellow,white
|
Brown
|
|
Raw materials
|
Calcined alumina
|
Calcined alumina
|
Refined bauxite powder
|
Bauxite powder
|
|
Forming method
|
Isostatic pressing
|
Isostatic pressing
|
Impact briquetting
|
handmade
|
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