|
99% Alumina Balls
Size:1/8”-2”
Al2O3: 99% |
|
| Chemical and Physical Properties |
| & Typical chemical composition |
| SiO2 |
0.15-0.2 |
MgO |
0.03-0.05 |
| Al2O3 |
99-99.2 |
CaO |
0.04-0.07 |
| Fe2O3 |
0.05-0.2 |
K2O |
0.1-0.15 |
| TiO2 |
0.15-0.2 |
Na2O |
0.2-0.25 |
| Soluble Fe: <0.01% | |
| & Typical physical properties |
| Density |
g/cm³ |
3.5-3.6 |
| Water Absorption |
% |
2-3 |
| E-M |
GPa |
60 |
| Mohs Hardness |
Scale |
9 |
| Specific heat, 20℃-100℃ |
J/kgK |
840 |
| Thermal Conductivity 30℃-100℃ |
W/mK |
1-1.5 |
| Coefficient of thermal expension |
(20℃-600℃)10-6K-1 |
4.7 |
| Heat Resistance |
Up to ℃ |
1500 | |
| & Sizes, size tolerances,packing density, specific surface, void fraction and compressive strength for alumina balls. |
|
Size (Inch)-(mm)
tolerance |
Packing density
(kg/m³) |
Spec.surface (m²/m³) |
Void space
(%) |
Compressive strength per ball (kg/partical) |
|
1/8”-3mm
(2.5-3.5mm) |
2000 |
720 |
44 |
60 |
|
1/4”-6mm
(5.5-6.5mm) |
2000 |
520 |
44 |
160 |
|
3/8”-9mm
(8-10mm) |
2000 |
360 |
44 |
240 |
|
1/2”-13mm(12-14mm) |
2000 |
275 |
45 |
450 |
|
3/4”-19mm(18-20mm) |
2000 |
190 |
45 |
520 |
|
1”-25mm(24-26mm) |
2100 |
144 |
45 |
800 |
|
1¼”-32mm(31-33mm) |
2200 |
120 |
45 |
850 | |
|
|
