product | Al2O3 | Bulk density | Water absorption rate | Mohs hardness | Attrition rate | colour |
Medium aluminum grinding ball | 65-70 | 2.93 | 0.01 | 8 | 0.01 | Yellow white |
Appearance requirement |
High aluminum grinding ball |
Crack | Not allow |
impurity | Not allow |
Foam hole | It is not allowed to exceed 1mm, and 3 / ball is allowed within 0.5mm. |
flaw | Maximum size 0.3mm, 3 / ball allowed, |
Advantage | High aluminum content High-density High hardness High wear resistance |