| Customization: | Available |
|---|---|
| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
|
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We are an aluminum oxide manufacturer specializing in brown fused aluminum oxide (Al2O3), otherwise known as brown fused alumina, through an electric arc furnace process. Our brown fused aluminum oxide is made into many shapes and grit sizes ranging from macrogrits to microgrits and powders. Brown fused aluminum oxide is a tough, hard material (Mohs hardness 9) with high strength, excellent wear and corrosion resistance and good thermal conductivity.
Brown fused alumina is widely used as a raw material in refractories, ceramics shapes, grinding wheels, sandpaper, blasting media, metal preparation, laminates, coatings, lapping, polishing, grinding and hundreds of other applications. Our brown fused alumina grains and powders are available in standard grit and powder sizes and they can also be made to individual specifications.
Bro
brown fused aluminum oxide (Al2O3)ina
Brown fused alumina consists almost entirely of aluminium oxide and is almost iron-free. Brown fused alumina is less pure than white fused alumina. The special composition of this angular mineral makes it extremely stable. It is also both hard and tough. Brown fused alumina is primarily used as a blasting medium and in floorings. It belongs to the group of fused alumina.
(Average grain size)
FEPA
F 012: 1400-2000µm
F 014: 1180-1700µm
F 016: 1000-1400µm
F 020: 850-1180µm
F 022: 710-1000µm
F 024: 600-850µm
F 030: 500-710µm
F 036: 425-600µm
F 040: 355-500µm
F 046: 300-425µm
F 054: 250-355µm
F 060: 212-300µm
F 070: 180-250µm
F 080: 150-212µm
F 090: 125-180µm
F 100: 106-150µm
F 120: 90-125µm
F 150: 63-106µm
F 180: 63-90µm
F 220: 53-75µm
Metric
0,25-0,50mm
0,50-1,00mm
Hardness: 9 mohs
Grain shape: angular
Melting point: approx. 2050°C
Specific gravity: approx. 3.9 - 4.1 g/cm3
Bulk density: approx. 1.5 - 2.1 g/cm3
(depending on grain size)
Al2O3: 95,20%
TiO2: 2,45%
Fe2O3: 0,15%
SiO2: 1,20%
CaO: 0,30%
F 220: 53-75µm
Metric
0,25-0,50mm
0,50-1,00mm
- Pressure blast systems
- Injection blast cabinets
Flooring industry:
- Additive for wear-resistant floorings
Blast-cleaning:
- Cleaning metallic surfaces with removal of material (abrasive effect)
- Removing rust and scale from metallic surfaces
- Removing tempering colour
- Removing paint
Other:
- Surface pre-treatment before applying protective coatings or metal spraying
- Roughening metallic surfaces before applying coatings (sweeping)
- Processing very hard components
- Deburring
- Creating a matt finish on glass
- Blasting stone (for stone masonry)
25 kg sacks on pallets of up to 1 tonne
50 kg (2 sacks)
| Purpose | Specification | Size | Al2O3(≥) | Fe2O3(≤) | SiO2≤ | TiO2≤ | Magnetic |
| For abrasive | F grit |
12#-80# | 95.0 | 0.3 | 1.5 | 3.0 | 0.05 |
| 90#-150# | 94.0 | 0.3 | 1.5 | 3.0 | 0.03 | ||
| 180#-240# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
P grit |
8#-80# | 95.0 | 0.2 | 1.2 | 3.0 | 0.05 | |
| 100#-150# | 94.0 | 0.2 | 1.2 | 3.0 | 0.03 | ||
| 180#-220# | 93.0 | 0.3 | 1.5 | 3.5 | 0.02 | ||
| Micro Powder | W0.5-W63 F320-F1500 | 92.5 | 0.5 | 1.8 | 4.0 | ||
| For refractory | Size for Sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | 95.5 | 0.3 | 1.5 | 3.0 | |
| 0-3mm 0-5mm 0-10mm 0-25mm | 95.0 | 0.3 | 1.5 | 3.0 | |||
| Fine powder | 100F 200F 325F | 94.5 | 0.5 | 1.5 | 3.5 |
| Item | Index |
| Colour | Dark brown(Deep blue after calcination) |
| Crystal form | Trigonal crystal |
| Hardness(MO) | ≥9.0 |
| Melting point(°c) | 2250 |
| Maximum service temperature°c | 1900 |
| True density(g/cm3) | ≥3.9 |
| Coefficient of linear expansion | 7-9 |
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