Alumina
Alumina Grinding Balls
High-density alumina grinding media with a hard, smooth surface and very low wear rate. Because they abrade far less than steel or flint media, they grind ceramic bodies and glazes without discolouring or contaminating the batch.
Typical Analysis
| Property | Value |
|---|---|
| Al₂O₃ | 68 - 92% (depending on grade) |
| Density | ≈ 3.6 g/cm³ |
| Hardness (Mohs) | 9 |
| Abrasion | Very low |
Key Properties
| Common diameters | 3 to 60 mm |
|---|---|
| Grades | Medium-alumina and high-alumina |
