Brown fused alumina micro powder 320#-2000#

Brown fused alumina micro powder, also called brown aluminium oxide micro Powder, is an artificial electro-fused corundum obtained from the reduced fusion of high-quality bauxite and other raw materials in 2000℃ electric arc furnaces. Bauxite Used for producing BFA contains high Aluminium Oxide(Al2O3). After the fusion process, then cooled down and crushed(milled)into lump sizes. The lump sizes are then ground into finer grades or powders and refined by sieving equipment into different particle distribution materials for many applications. It is the perfect material manufactured explicitly for general abrasive applications in bonded abrasive tools, polishing, and sandblasting grit. It has a lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide; it is widely used for grinding ferrous materials and finishing hard materials. It is also be used as high-class refractory materials.

Physical characteristics of brown fused alumina micro powder 320#-2000#:

Crystal Form: Alpha-Alumina
True Density: 3.95 g/cm3
Hardness: Mohs 9.0
Melting Point: 2000°C
Colour: Brown

Brown fused alumina micro powder 320#-2000# sizing test methods:

Sizing: FEPA Standard 42-2: 2006
JIS R 6001 – 1998
Micron sizes based on Coulter Multisizer

Brown aluminum oxide powder FEPA F – JIS – GB – ISO standard – powders/micro grits

Available micron powder sizes
China GB 2477-83 JIS FEPA(84) / DIN(70) ISO(77)
Grit No. Standard size range(µm) Grit No. ds50 value (µm) Grit No. ds50 value (µm) Grit No. ds50 value (µm)
Standard werte der Mikro-F-Reihe Serigraph 5000D
240 60.0±4.0 P240 58.5±2.0
280 52.0±3.0 P280 52.2±2.0
W63 63 – 50 320 46.0±2.5 F230/53 53±3.0 50.0±3.0 P320 46.2±1.5
W50 50 – 40 360 40.0±2.0 F240/45 44.5±2.0 42.0±2.0 P360 40.5±1.5
400 34.0±2.0 P400 35.0±1.5
W40 40 – 28 500 28.0±2.0 F280/37 36.5±1.5 34.5±1.5 P500 30.2±1.5
600 24.0±1.5 F320/29 29.2±1.5 27.7±1.5 P600 25.8±1.0
W28 38 – 20 700 21.0±1.3 F360/23 22.8±1.5 21.6±1.5 P800 21.8±1.0
800 18.0±1.0 F400/17 17.3±1.0 16.5±1.0 P1000 18.3±1.0
W20 20 – 14 1000 15.5±1.0 F500/13 12.8±1.0 12.3±1.0 P1200 15.3±1.0
W14 14-10 1200 13.0±1.0
1500 10.5±1.0 F600/9 9.3±1.0 9.0±1.0
W10 10-7 2000 8.5±0.7
W7 7-5 2500 7.0±0.7 F800/7 6.5±1.0 6.3±1.0
W5 5 – 3.5 3000 5.7±0.5 F1000/5 4.5±0.8 4.5±0.8
F1200/3 3.1±0.5 3.1±0.5
for general purposes for general purposes for bonded abrasives for coated abrasives

Brown Fused Alumina(FAQ)

What is melting vs. Sintering?

When processing minerals in a furnace, materials can either be melted or sintered.  When materials are melted during the production process the minerals go from a solid state, to a liquid state, then is re-solidified during the cooling process creating uniformity in the chemistry throughout the entire batch. The sinerting process

What’s lead time for bulk order?

1)for 5~25 tons, it takes around 10~15days. 2)For 26~200 tons,20-40days We will try to deliver it with the promise of quality guarantee as soon as possible

What is your sample policy?

We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost. 

Product Category
Brown Fused Alumina Products
Brown Fused Alumina News
Product Knowledge

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Its Right Place To Have All Abrasives-TAOANG

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Industry News

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Fused Alumina is the tooth of industry and is widely used in various industries. TAOANG is committed to sharing information on the upstream and downstream industries of fused alumina. Brown fused Aluminum Oxide prices in China reached a

Company News

How is fused alumina obtained?

Raw materials containing aluminium oxide are electrothermally melted at a reaction temperature of more than 2,000 °C to produce the various fused aluminas. Different starting materials are used depending on the desired type of fused alumina. For instance,