Product | Al2O3(%) | Bulk density(g/cm3) | Water absorption(%) | Moh's Hardness(scale) | Abrasion loss(%) |
High Alumina Grinding Balls | 92 | 3.65 | <0.01 | 9 | 0.011 |
High Alumina Grinding Balls | 95 | 3.68 | <0.005 | 9 | 0.0084 |
Medium Alumina Grinding Balls | 65-75 | 2.93 | <0.01 | 8 | <0.01 |
Carbonized Alumina Grinding Balls | 60-70 | 2.8-2.9 | <0.05 | 8 | <0.08 |
High Alumina Grinding Balls | Medium Alumina Grinding Balls | Carbonized Alumina Grinding Balls | |
Color | White | White | Ash-black |
Crack | Not Permission | Not Permission | Not Permission |
Impurity | Not Permission | Not Permission | Not Permission |
Foam hole | Above 1mm not permission, size in 0.5mm permit 3 balls | ||
Flaw | Max. size in 0.3mm permit 3 balls |