BROWN FUSED ALUMINA FOR BONDED ABRASIVES
Brown Fused Alumina, also called Brown aluminum oxide, brown corundum, artificial corundum, BFA, etc, is made by melting and reducing in electric furnace over 2200°C with three raw materials of bauxite, anthracite and iron chip. Then made into different grain size through cooling crystallization, sort, crush, magnetic separation, screen size, blow cleaning etc.. Its main chemical constituent is Al2O3 and small quantity of TiO2, Fe2O3, SiO2 etc. It has characteristics of high hardness, great toughness and sharpness, is main raw material for bonded abrasives like cutting discs and grinding wheels, etc.
Commodity: Brown Fused Alumina
Production Type: Tilting Furnace, Barmac Crushing, Air Blow Cleaning
| Chemical Index |
| Al2O3 | SiO2 | Fe2O3 | TiO2 | CaO |
| 95%min. | 1.0% max. | 0.3% max. | 2.0%-3.0% | 0.45% Max. |
| Physical Index |
| Color | Crystal Form | True Specific Gravity | Vickers Hardness | Melting point |
| Brown | Trigonal Crystal | 3.97g/cm3 | 2100kg /mm2 | 2000 °C |
| Sizes-Grit & Bulk Density (g/cm3) |
| F12# 1.93-1.99 | F14# 1.92-1.98 | F16# 1.91-1.97 | F20# 1.90-1.96 | F22# 1.89-1.95 |
| F24# 1.88-1.94 | F30# 1.87-1.93 | F36# 1.85-1.91 | F40# 1.84-1.90 | F46# 1.83-1.89 |
| F54# 1.82-1.88 | F60# 1.81-1.86 | F70# 1.80-1.84 | F80# 1.79-1.82 | F90# 1.77-1.80 |
| F100# 1.75-1.78 | F120# 1.73-1.76 | F150# 1.70-1.74 | F180# 1.69-1.73 | F220# 1.68-1.72 |
| Sizes-Section sand |
| 0-1mm | 1-3mm | 3-5mm | 5-8mm | 0-25mm |
| 200mesh | 325mesh | Special sizes can be customized as per clients’ requirements |
Supply Capacity
BFA grit: F12#-F220# for abrasives and sandblasting: 1000 mt per Month
BFA section sand 0-1mm, 1-3mm, 3-5mm, 200 mesh, 325 mesh for refractory: 1000 mt per Month
1. Bonded abrasives like cutting discs and grinding wheels and coated abrasives like sand paper, sand rolls, flap discs, etc;
2. Sandblasting for cleaning, deburring metal parts like aluminum, copper parts, washed jeans and other precision abrasives;
3. Refractories, castables, refractory bricks
Why Choose us?
1) 20 years abrasive industry experiences
2) Direct Factory supply & Fixed abrasive sources
3) On-site inspection in factory for each shipment
4) Samples tests each lot in Zhengzhou Research Institute for Abrasives& Grinding Co., Ltd
Our Brown fused alumina grit has been exported to Japan, India, Israel, Russia, Poland etc.
Pls send me email to get Brown fused alumina datasheet /samples and quotation…
Caroline Cui
