product | Al2O3 % | Bulk density g/cm2 | Water absorption rate % | Mohs hardness scale | Attrition rate % | colour |
High aluminum grinding ball | 92 | 3.65 | 0.01 | 9 | 0.011 | white |
Appearance requirement |
| High alumina 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 | The maximum size is 0.3mm, 3 / ball is allowed |
Advantage | a) High aluminum content B) high density C) high hardness d) High wear resistance |