Customization: | Available |
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Natural Abrasive Type: | Natural Corundum |
Artificial Abrasive Type: | Corundum Abrasives |
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Physical shape and density aspects
Shape and accumulation density: choose advanced selection technology, the shape of the powder is mostly sheet and sword shape, the accumulation density is small, with strong sharpness
Purity and hydrophilic ability
Purity and hydrophilic ability: using advanced purification process, so that the purity of the powder is higher, more hydrophilic ability. Mechanical properties
Hardness, strength, etc.: high hardness, high strength, impact resistance, high temperature resistance, oxidation resistance, corrosion resistance, low creep
Type Properties |
Lower sodium I |
Middle sodium II |
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Fraction(mesh) |
Fine(mesh) |
Fraction(mesh) |
Fine(mesh) |
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Guarantee Value |
Typical value |
Guarantee Value |
Typical value |
Guarantee Value |
Typical value |
Guarantee Value |
Typical value |
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Chemical Composition (%) |
α-Al2O3 |
≥99 |
99.3 |
≥98.5 |
99.23 |
≥99 |
99.14 |
≥98.5 |
98.75 |
SiO2 |
≤0.2 |
0.15 |
≤0.3 |
0.22 |
≤0.4 |
0.12 |
≤0.4 |
0.19 |
|
Fe2O3 |
≤0.2 |
0.04 |
≤0.25 |
0.04 |
≤0.2 |
0.01 |
≤0.25 |
0.05 |
|
Na2O |
≤0.15 |
0.12 |
≤0.25 |
0.18 |
≤0.4 |
0.35 |
≤0.5 |
0.23 |
|
Principal crystalline phase |
α-Al2O3 |
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Crystal system |
Hexzagon |
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Colour |
white |
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True density (g/cm3) |
≥3.95 |
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Packing density (g/cm3) |
1.75-1.95 |
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Mohs hardness |
9 |
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Linear expansion (1/°C) |
8.3×10-4 |
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Size(mm) |
8-5 5-3 3-1 1-0 |
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Fine(mesh) |
-80,-120,-240,-320 |
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Micropowder(um) |
3-5 5-10 |
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Test standard |
GB/T3044-89 |
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Packing |
25kg/bag 1000kg/big bag |
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Usage |
Refractories |