BROWN ALUMINUM OXIDE GRITS FOR BONDED ABRASIVES
Brown aluminum oxide also called Brown fused alumina, Brown
corundum, BFA, etc., is a kindly of artificial corundum, HS code:
2818101000
It is made of high-quality bauxite as main raw material, fusing and
purifying in a tilting electric arc furnace at high temperature of
over 2200°c, and then shaped into different grain size through
process of crystal, choosing, crushing, magnetic separation, air
cleaning, and screening.
Main chemical composition is Al2O3 95% Min. and small quantity of
TiO2, Fe2O3, SiO2, etc. It has characteristics of high hardness,
great toughness, self-sharpness and good grinding performance.
By Al2O3:
- 95% Al2O3 Grade A Brown aluminum oxide
- 92% Al2O3 Offset A Brown aluminum oxide
- 85% Al2O3 Grade B Brown aluminum oxide
By application:
- F sand for Bonded Abrasives
- P sand for coated Abrasives
By smelting type:
- Tilting furnace
- Fixed Furnace
By crushing type:
- Barmac
- Rolling
- Ball milling
By Additional treatment:
- Middle temperature calcined Brown aluminum oxide,
- High temperature calcined Brown aluminum oxide,
- Coated Brown aluminum oxide
- High temperature calcined & coated Brown aluminum oxide (AHMCF)
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
Brown Aluminum oxide grits especially F 20#, 24#, 30#, 36#, 46#,
60#, 70#, 80#
Is applicable for Bonded abrasives and sandblasting
Vitrified Bonded abrasives and resin bonded abrasives. Like
grinding wheels, cutting discs, etc.
Sandblast on aluminum parts, copper parts, glass, Washed jeans,
precision molds such as shoe molds blasting, decontamination,
descaling, cleaning, pretreatment, matte finish, etching art,
deburring, stress relief, etc.
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
