- Zhengzhou Haixu Abrasives Co., Ltd.
-
Zhengzhou, Henan, China
- Main products: white fused alumina, brown fused alumina, silicon carbide, boron carbide, glass beads, pink fused alumina, tabular alumina, ceramic foundry sand, zirconia fused alumina, chromite sand, garnet, bauxite
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Tabular aluminum oxide powder
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Product Details
| Brand Name | Haixu Abrasives | Place of Origin | China | |
| Model Number | 0-1mm，1-2mm，2-3mm，3-6mm，2-5mm，0.2-0.6mm，0.5-1mm | Material | aluminum oxide | |
| Usage | refractory,castable,ceramic,insulating material | Abrasive Grain Sizes | 0-1mm，1-2mm，2-3mm，3-6mm，2-5mm，0.2-0.6mm，0.5-1mm |
Product Description
Tabular aluminum oxide powder
Tabular Alumina is high-density, fully shrunk, coarse crystalline alpha-alumina that has been converted to the corundum form. It is a completely crystallized α-alumina sintered at slightly below the melting point of imported alumina after batching, grinding, and molding.
Tabular Alumina is produced by sintering ball-formed alumina at a temperature under the 2040°C fusion point of aluminum oxide. The crystals are arranged in a tabular staggered way, which increases the mechanical strength of the particles.
Tabular alumina has characteristic large, well developed hexagonal tablet-shaped α-alumina crystals of up to 200μm length.
1. Complete crystallization, High purity up to 99.5% Al2O3
2. Low apparent porosity Less than 5%
3. Good resistance to alkalis and mineral acids
4. Low water absorption less than 1%
5. High hardness and toughness
6. High thermal conductivity
7. Excellent thermal shock resistance
8. Good abrasion resistance.
9. High volume stability
10.High anti-bending strength
| Typical physical properties | ||||
| Specific gravity | 3.96 g/cm3 | |||
| Bulk density | 3.45-3.5g/cm3 | |||
| Apparent porosity | 2-5% | |||
| water absorption rate | 0.7-1.5% | |||
| Mohs' Hardness | 9.0 | |||
| Knoop hardness | 2000kg/cm3 | |||
| Thermal conductivity | (100℃)0.069 cal/sec cm℃ | |||
| Heat capacity | (20℃)0.21cal/gm/(100℃) | |||
| Melting temperature | 2050℃ | |||
| Max. service temperature | min 1800℃ | |||
| Refractive Index | 1.76 | |||
| Appearance | White granules or powder | |||
| Chemical composition(%) | ||||
| Index | AL2O3 | SiO2 | Fe2O3 | Na2O |
| Guarantee Value | min 99.2 | max 0.18 | max 0.1 | max 0.4 |
| Typical Value | 99.45 | 0.05 | 0.02 | 0.32 |
| Key Physical Index | ||||
| Index | Bulk density(g/cm3) | Porosity(%) | Water absorption rate(%) | |
| Guarantee Value | min 3.5 | max 5.0 | max 1.5 | |
| Typical Value | 3.56 | 2.35 | 0.72 | |
Particle Size Distribution:
| Size:mm | Distribution | Typical Values % | MAX/MIN % |
| 5-10mm | 5-10mm | 92 | 75 |
| 7-10mm | 58 | 40 | |
| 5-7mm | 35 | 20 | |
| 3-6mm | 3-6mm | 98 | 90 |
| 4-6mm | 55 | 40 | |
| 3-4mm | 44 | 20 | |
| 1-3mm | 1-3mm | 99 | 90 |
| 2-3mm | 52 | 30 | |
| 1-2mm | 47 | 30 | |
| 1-2mm | +2.36mm | 8 | 10 |
| -1mm | 5 | 10 | |
| 0.5-1mm | 0.5-1.18mm | 95 | 90 |
| 0.7-1.18mm | 45 | 35 | |
| 0.5-0.7mm | 50 | 20 | |
| 0.2-0.6mm | +0.6mm | 5 | 10 |
| -0.2mm | 4 | 10 | |
| 0-0.5mm | 0-0.5mm | 95 | 90 |
| 0.15-0.5mm | 49 | 38 | |
| -200# | +0.088mm | 0.3 | 3 |
| -0.044mm | 96 | 90 | |
| -325# | -0.044mm | 97 | 85 |
| Available Sizes | |||
| Fraction | 0-30mm,30-10mm,12-6mm,10-8mm,8-5mm,5-3mm,3-1mm,2-1mm,1-0mm,1-0.5mm,0.5-0.2mm,0.5-0mm,0.3-0mm | ||
| Fine | 46mesh-0,60mesh-0,80mesh-0,100mesh-0,120mesh-0,150mesh-0,180mesh-0,200mesh-0,240mesh-0,270mesh-0 | ||
| Customized size is available upon request | |||
Tabular Alumina is widely used in refractories including shaped & unshaped refractories, sliding gate, purging plug brick, nozzle, well block as well as kiln furniture, electronic industries, petrochemical industries, and ceramic industries. Tabular alumina is an ideal material for lining, ramming, aggregate, and castables in steel ladle. The usage of tabular alumina almost covers every step in steeling manufacturing.
Contact Us
- Zhengzhou Haixu Abrasives Co., Ltd.
- Contact namePan Chen Chat Now
- Phone86-371-60900389
- AddressXingyang, Zhengzhou, Henan
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