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Use | Specifications | The main chemical components% | Magnetic materials% | ||||||
Al2O3 | Fe2O3 | SiO2 | TiO2 | ||||||
Abrasives | F | 4#80# | ≥95.0 | ≤0.25 | ≤1.5 | ≤2.3 | ≤0.05 | ||
90#150# | ≥95.0 | ≤0.03 | |||||||
180#240# | ≥94.0 | ≤0.25 | ≤1.5 | ≤2.3 | ≤0.02 | ||||
P | 8#80# | ≥95.0 | ≤0.25 | ≤1.2 | ≤2.5 | ≤0.05 | |||
100#150# | ≥94.0 | ≤0.03 | |||||||
180#220# | ≥93.0 | ≤0.3 | ≤1.5 | ≤2.5 | ≤0.02 | ||||
W | 1#-63# | ≥92.5 | ≤0.4 | ≤1.8 | ≤3 |
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| Sand paragraph | 0-1mm1-3mm3-5mm5-8mm8-12mm | ≥95 | ≤0.25 | ≤1.5 | ≤2.3 |
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25-0mm10-0mm50-0mm30-0mm | ≥95 | ≤0.25 | ≤1.5 | ≤2.3 |
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Powder | 180#-0200#-0320#-0 | ≥94.5≥93.5 | ≤0.3 | ≤1.5 | ≤3 |
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The physical properties of corundum | |
Item | Indicators |
Color | Dark brown (dark blue after calcining) |
Crystal shape | Trigonal system |
Hardness (Mo's) | ≥9.0 |
Melting Point () | 2250 |
The maximum temperature () | 1900 |
True Density (g/cm3) | ≥3. 90 |
Linear expansion coefficient (0-1600 ) | 79 |
Brown fused alumina