White Calcinated Aluminum Oxide Powder
Brown Fused Aluminum Oxide Powder
Brown Fused Aluminum Oxide powders are the perfect material specifically manufactured to be used for general abrasive applications in bonded abrasive tools, and lapping and polishing processes. While aluminum oxide has lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide, it is widely used for grinding ferrous materials, finishing tough and hard materials, filling up ceramic parts when the processing cost is important. Brown fused aluminum oxide is offered in macro and micro powder form, in both P and FEPA grades.
Technical data
| Grit Size | Al2O3 mass % - min. | Fe2O3 (Iron Oxide) mass % - max | CaO (Calcium Oxide) mass % -max | Titanium Oxide (TiO2) mass %- max |
|---|---|---|---|---|
| F12-F20 | 95.0 | 0.3 | 0.3 | 1.8 |
| F24-F90 | 95.0 | 0.3 | 0.3 | 1.8 |
| F100-F120 | 95.0 | 0.4 | 0.4 | 1.8 |
| F150-F180 | 95.0 | 0.5 | 0.4 | 1.8 |
| F230-F280 | 96.0 | 0.4 | 0.5 | 1.8 |
| F320-F600 | 95.0 | 0.4 | 0.5 | 1.8 |
| F800-F1000 | 94.0 | 0.5 | 0.5 | 1.8 |
| F1200 | 95.0 | 0.5 | 0.7 | 1.8 |
| Application | Grade | Grit Size | SIC mass %- min. | Free C (Carbon) mass % -range | Total C (Carbon) mass % - range | S (Sulfur) mass % - range | Moisture mass % - range |
|---|---|---|---|---|---|---|---|
| Metallurgical | MG | 0-20mm | 88-92 | 3-6 | 30-33 | 0.1-0.2 | 1-3 |
| Structure | : | Monocrystalline | |
| Particle shape | : | Blocky, sharp edged | |
| Color | : | Brown | |
| Friability | : | Tough | |
| Knoop hardness (100 scale) | : | 2040 | |
| Bulk density | : | ANSI B74.12-1988 | |
| Specific gravity | : | 3.99 |
Particle size distribution for available grits.
Grading: FEPA Standard
| Grit size | 3% max., larger than, um | 50% min., in size range, um | 94% min., larger than, um | Grit size | 3% max., larger than, um | 50% min., in size range, um | 94% min., larger than, um |
|---|---|---|---|---|---|---|---|
| F12 | 2000 | N/A | 1400 | F120 | 125 | N/A | 90 |
| F14 | 1700 | N/A | 1180 | F150 | 106 | N/A | 63 |
| F16 | 1400 | N/A | 1000 | F180 | 90 | N/A | 53 |
| F20 | 1180 | N/A | 850 | F220 | 75 | 50.0-56.0 | 45 |
| F24 | 850 | N/A | 600 | F240 | 70 | 42.5-46.5 | 28 |
| F30 | 710 | N/A | 500 | F280 | 59 | 35.0-38.0 | 22 |
| F36 | 600 | N/A | 425 | F320 | 49 | 27.7-30.7 | 16.5 |
| F40 | 500 | N/A | 355 | F360 | 40 | 21.3-24.3 | 12 |
| F46 | 425 | N/A | 300 | F400 | 32 | 16.3-18.3 | 8 |
| F54 | 355 | N/A | 250 | F500 | 25 | 11.8-13.8 | 5 |
| F60 | 300 | N/A | 212 | F600 | 19 | 8.3-10.3 | 3 |
| F70 | 250 | N/A | 180 | F800 | 14 | 5.5-7.5 | 2 |
| F80 | 212 | N/A | 150 | F1000 | 10 | 3.7-5.3 | 1 |
| F90 | 180 | N/A | 125 | F1200 | 7 | 2.5-3.5 | 1 |
| F100 | 150 | N/A | 106 |
Note: JIS and P Standard graded powder is available on request