Min 95% AL2O3 Barmac Brown Aluminum Oxide BFA F12-F220 for Bonded Abrasives
1. Description of Brown Aluminum Oxide BFA
Brown Aluminum Oxide is also named as brown fused alumina, it is made by high-quality bauxite,coke
(anthracite) as main raw materials, melting in an electric arc furnace at a temperature over 2200℃,then
made into different grain size through cooling crystallization, sort, crush, magnetic separation , screen size,
blow cleaning etc..
Its main chemical composition is Al2O3 which is over 95%, it has the characteristics of high hardness,
great toughness and sharpness.
2. Main Technical Index of Brown Aluminum Oxide BFA
| Commodity | Usage | Grit | Main Chemical Index |
| Al2O3 | TiO2 | SiO2 | Fe2O3 | Magnetic |
| Brown Aluminum Oxide | Abrasive | F4～F80 P12-P80 | ≥95% | ≤3.5% | ≤1.0% | ≤0.30% | ≤0.05 |
| F90～F150 P100-P150 | ≥94% | ≤3.5% | ≤1.0% | ≤0.30% | ≤0.03 |
| F180～F220 P180-P220 | ≥93% | ≤3.5% | ≤1.0% | ≤0.30% | ≤0.03 |
| Refractory | 0-1mm,1-3mm | ≥95% | ≤3.5% | ≤1.0% | ≤0.30% | / |
| 3-5mm,5-8mm |
| 0-25mm,0-30mm |
| 200mesh | ≥94% | ≤3.5% | ≤1.0% | ≤0.30% | / |
| 325mesh | ≥94% | ≤3.5% | ≤1.0% | ≤0.30% | / |
| Main Physical Index |
| Color | Brown |
| Crystal Structure | Trigonal |
| True Specific Gravity | ≥3.97g/cm3 |
| Bulk Density | 1.68-1.98g/cm3 |
| Vicker Hardness | 2100kg /mm2 |
| Mohs Hardness | ≥9 Mohs |
| Compressive strength | 34N |
| Melting point | 2050℃ |
| Refractoriness | 1900℃ |
| Furnace Type | Tilting furnace |
| Crushing Method | Barmac,Roller,Ball mill |
3. Main Applications of Brown Aluminum Oxide BFA
Bonded abrasives : resin cutting discs, grinding wheels,honing stones etc.
Coated abrasives: sandpaper, sandbelts,flap wheels etc.
Sandblasting media to clean,polish,cut or finish surfaces both in dry or wet blasting.
Refractory materials: castable, refractory brick etc.
Anti-skid materials in high traffic areas,aircraft runway,parking floor,bridge etc.
4. Product Show
5. Product Package
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Min 95% AL2O3 Barmac Brown Fused Aluminum Oxide BFA For Bonded Abrasives Images
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