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| Product | Al2O3 % | Bulk Density (g/cm³) | Water Absorption | Mohs Hardness Scale | Abrasion Loss % | Color |
|---|---|---|---|---|---|---|
| High Alumina Grinding Balls | 92 | 3.65 | 0.01 | 9 | 0.011 | White |
| Medium Alumina Grinding Balls | 65-70 | 2.93 | 0.01 | 8 | 0.01 | Yellow-White |
| Defect Type | High Alumina Grinding Balls | Medium Alumina Grinding Balls |
|---|---|---|
| Crack | Not permitted | Not permitted |
| Impurity | Not permitted | Not permitted |
| Foam Hole | Above 1mm not permitted; size within 0.5mm permits up to 3 balls. | |
| Flaw | Max size within 0.3mm permits up to 3 balls. | |
| Chemical Item | Proportion | Chemical Item | Proportion |
|---|---|---|---|
| Al2O3 | 65-70% | SiO2 | 30-15% |
| Fe2O3 | 0.41% | MgO | 0.10% |
| CaO | 0.16% | TiO2 | 1.71% |
| K2O | 4.11% | Na2O | 0.57% |
| Specification (mm) | Volume (cm³) | Weight (g/pc) |
|---|---|---|
| Φ30 | 14 ± 1.5 | 43 ± 2 |
| Φ40 | 25 ± 1.5 | 100 ± 2 |
| Φ50 | 39 ± 2 | 193 ± 2 |
| Φ60 | 58 ± 2 | 335 ± 2 |
| Chemical Item | Proportion | Chemical Item | Proportion |
|---|---|---|---|
| Al2O3 | ≥92% | SiO2 | 3.81% |
| Fe2O3 | 0.06% | MgO | 0.80% |
| CaO | 1.09% | TiO2 | 0.02% |
| K2O | 0.08% | Na2O | 0.56% |
| Specification (mm) | Volume (cm³) | Weight (g/pc) |
|---|---|---|
| Φ30 | 14 ± 1.5 | 43 ± 2 |
| Φ40 | 25 ± 1.5 | 126 ± 2 |
| Φ50 | 39 ± 2 | 242 ± 2 |
| Φ60 | 58 ± 2 | 407 ± 2 |
