White Fused Alumina Corundum Abrasive Powder - 99.62% Al2O3 Purity, Mohs Hardness 9.0-9.5 for Sandblasting and Industrial Applications
High-purity synthetic white aluminum oxide powder manufactured through electric melting process for superior abrasive performance and industrial applications.
White Fused Alumina (WFA) abrasive blasting media is manufactured from 99% aluminum oxide powder, refined and crystallized through electric melting. Our white corundum sand features exceptional purity, minimal impurities, low sodium content, uniform particle distribution, and high whiteness.
| Component | Percentage |
|---|---|
| Al₂O₃ | 99.62% |
| Fe₂O₃ | 0.02% |
| Na₂O | 0.18% |
| K₂O | 0.01% |
| SiO₂ | 0.07% |
| CaO | 0.02% |
| MgO | 0.01% |
| L.I.O. | 0.05% |
| Property | Value |
|---|---|
| Color | White |
| Crystal Form | Trigonal Crystal System |
| Mohs Hardness | 9.0-9.5 |
| Micro Hardness | 2000-2200 kg/mm² |
| Melting Point | 2250°C |
| Maximum Operating Temperature | 1900°C |
| Specific Gravity | 3.95 g/cm³ |
| Volume Density | 3.6 g/cm³ |
| Particle Shape | Angular |
- High Al₂O₃ purity (99% minimum) ensures superior hardness and grinding efficiency
- Excellent wear resistance maintains strength even in high-temperature environments
- Water suspension treatment provides optimal flowability and dispersion
- Low oil absorption, particularly suitable for water-based paints
- Neutral pH value (7-8) for versatile applications
- High whiteness preserves color integrity of paints and coatings
- Resistant to most corrosive alkalis and acids; insoluble in water
- Temperature resistance up to 1900°C
- Consistent particle size distribution prevents substrate scratching
| F Grit Size | Mean Diameter (μm) | Bulk Density (g/cm³) |
|---|---|---|
| F8 | 2460 | 1.79-1.88 |
| F12 | 2085 | 1.78-1.88 |
| F14 | 1765 | 1.77-1.86 |
| F16 | 1470 | 1.75-1.85 |
| F20 | 1230 | 1.74-1.85 |
| F22 | 1040 | 1.73-1.84 |
| F24 | 885 | 1.73-1.83 |
| F30 | 745 | 1.73-1.82 |
| F36 | 625 | 1.72-1.82 |
| F40 | 525 | 1.71-1.81 |
| F46 | 438 | 1.70-1.80 |
| F54 | 370 | 1.68-1.79 |
| F60 | 310 | 1.68-1.78 |
| F70 | 260 | 1.63-1.73 |
| F80 | 218 | 1.61-1.71 |
| F90 | 185 | 1.59-1.69 |
| F100 | 154 | 1.58-1.68 |
| F120 | 129 | 1.55-1.62 |
| F150 | 109 | 1.52-1.61 |
| F180 | 82 | 1.50-1.60 |
| F220 | 69 | 1.48-1.58 |
- Free grinding applications in glass industry
- Friction products and abrasion-resistant surfaces
- Resin or ceramic bonded abrasives including grinding wheels and cutting discs
- Refractory raw materials for wear-resistant and fire-proof products
- Grinding and polishing tools including grinding stones, blocks, and flap discs
- Coated abrasives such as abrasive paper, cloth, and belts
- Precision casting molds and grinding/lapping/polishing media
Available in multiple packaging configurations:
- 1 ton jumbo bags
- Jumbo bags with wooden pallets
- 25kg bags (40 bags per jumbo bag)
- 25kg woven bags or kraft paper bags
- Custom packaging available to meet specific customer requirements
Zhengzhou Xinli Wear-resistant Materials Co. Ltd., established in 1996, specializes in research, development, production, and sales of various wear-resistant materials including white corundum powder, alumina powder, green silicon carbide powder, and brown corundum powder. The company maintains comprehensive inspection equipment and quality control systems, holding ISO9001:2015 quality management system certification.
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