Customization: | Available |
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Classification: | Alumina |
Grade Standard: | Industrial Grade |
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Al2O3 | SiO2 | Fe2O3 | CaO | MgO | Na2O | K2O |
≥99.5% | ≤0.2% | ≤0.05% | ≤0.1% | ≤0.1% | ≤0.2% | ≤0.1% |
Diameter | Ф | 3 | 6 | 8 | 10 | 13 | 16 | 20 | 25 | 30 | 38 | 50 | 76 |
Tolerance, mm | Tolerance,mm | ± 1.0 | ± 1.5 | ±2.0 |
property | material type | ||
type A,Chemical industry corundum ceramic ball | Type B,thermal storage corundum ceramic ball | ||
Water absorption/% | ≤5 | ≤1 | |
Bulk density g/cm3 | 2.0~3.5 | 3.6~3.8 | |
Porosity, % | ≤ 7 ≤3 | ||
wear ration | ≤1 | ||
Acid resistance % | ≥98 | ||
Alkali resistance % | ≥95 | ||
Mohs'hardness, scal | 8~9 | ||
Thermal resistanceºC | 1600 | ||
Thermal shock resistance ºC | ≥300 | ≥200 | |
Crushing strength KN/pc |
Φ3 | ≥0.50 | |
Φ6 | ≥1.00 | ||
Φ8 | ≥1.50 | ||
Φ10 | ≥1.95 | ||
Φ13 | ≥5.00 | ||
Φ16 | ≥7.00 | ||
Φ20 | ≥9.80 | ||
Φ25 | ≥13.70 | ||
Φ30 | ≥15.00 | ||
Φ38 | ≥17.00 | ||
Φ50 | ≥21.00 | ||
Φ76 | ≥34.00 | ||
Bulk density kg/m³ | 1800~2000 | 1900~2200 | |
The data of bulk density is given for reference only, not as the acceptance criterion. |