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High Purity Electro Abrasives 95% Al2O3 Brown Corundum BFA For Ceramics

Brown Fused Alumina (BFA) is produced by a reduction fusion of high quality bauxites in electric arc furnaces. It is both a hard and tough material with high strength, making it an excellent abrasive grains.
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  • 12-220#

  • SEPPE ABRASIVE

  • 2818101000

Brown fused aluminum oxide

Brown Fused Aluminium

 

Brown fused aluminum oxide, otherwise known as Brown Fused Alumina or BFA, is produced through an electric arc furnace process. Brown fused aluminum oxide is both a hard (Mohs hardness 9) and tough material with high strength, making it an excellent abrasive grain raw material for applications such as blast media, sandpaper, grinding wheels and abrasive discs, rolls, belts and pads. Its thermal properties make it an excellent raw material for refractory applications, as well.  Because Brown Fused Aluminum  Oxide has a high bulk density and high hardness making it the perfect media for removing rust, mill scale, and surface contamination. The consistent particle size allows for a uniform surface finish and coverage. Additionally, BFA has a low friability which allows it to be recirculated on average, up to seven times. These characteristics reduce abrasive consumption, clean up, and disposal costs, increasing profitability.

   

Brown fused aluminum oxide

 

Purpose Specification Chemical Composition(%)
Al2O3 Fe2O3 SiO2 TiO2
Abrasive F 4#-80# 95.0Min 0.3Max 1.5Max 3.0Max
90#-150# 95.0Min
180#-240# 94.0Min 0.3Max 1.5Max 3.5Max
P 8#-80# 95.0Min 0.2Max 1.2Max 3.0Max
100#-150# 95.0Min
180#-220# 94.0Min 0.3Max 1.5Max 3.5Max
W 1#-63# 94.0Max 0.5Max 1.8Max 4.0Max
Refractory Size Sand

0-1mm

1-3mm

3-5mm

5-8mm

8-12mm

95Min 0.3Max 1.5Max 3.0Max
0-25mm 95Min 0.3Max 1.5Max 3.0Max
Fine Powder

180#-0

240#-0

320#-0

93.5Min 0.5Max 1.5Max 3.5Max

 

 


Chemical composition & Physical Data    

ChemicalAnalysis                            (%) 

Physical Data     
Al2O3 95.0 Particle Shape Particle Shape
TiO2  2.5-3.5 Colour Brown
SiO2  0.6-1.2 Specific Gravity g/cm3 3.9-4.1
Fe2O3  0.4 Bulk Density g/cm3 1.5-2.1
CaO and MgO <0.6 Hardness Knoop 100  2000
Na2O and K2O  <0.01 Hardness (Mohs)  9.0

 

 


Product Sizes

Product Sizes
F08 2000-2800 μm F46  300 - 425 μm
F10  1700-2360 μm F54  250 - 355 μm
F12  1400-2000 μm  F60  212 - 300 μm
F14  1180-1700 μm  F70  180 - 250 μm
F16  1000-1400 μm  F80  150 - 212 μm
F20  850-1180 μm F90  125 - 180 μm
F22  710-1000 μm F100  106 - 150 μm
F24  600 - 850 μm  F120  90 - 125 μm
F30  500 - 710 μm F150  63 - 106 μm
F36  425 - 600 μm F180  63 - 90 μm
F40  355 - 500 μm F220  53 - 75 μm




Applications:

grind wheelAbrasive

Produce ceramic grind wheel, resinoid grinding wheel, Grinding stone, Grinding block, sand paper, sand cloth, sand belt, polish wax, abrasive paste, coating etc.

 

refractory-brick

Refractory material:

Mainly used for abrasion and high temperature resistant, inoxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc.

Sand-blastingSandblasting abrasive:

Mainly used for various material workpieces to decontaminate, derusting, prevent corrosion, remove oxide skin etc.

Abrasion resistance ground: Mainly used for non-slip of airport and road, chemical factory board paving.Precision casting: Investment casting technics of stainless steel and aluminium casting in coating.

 

Precision casting

Abrasion resistance ground: Mainly used for non-slip of airport and road, chemical factory board paving.

Precision casting: Investment casting technics of stainless steel and aluminium casting in coating.