Brown Fused Alumina

Brown Fused Alumina

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  • Brown Fused Alumina (BFA), is also known as Brown Fused Alumina or BFA, is made of superior calcined bauxite, mixed with ferric chippings and coal as per suitable rates, melting at super high temperature condition approximately 2250℃ through an electric arc furnace processing.
  • 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.
  • Product types: F-Grits, P-Grits, Fine powder, Micro powder
  • Processing Methods: Roller /Barmac
  • Grain shapes: Angular/ Cubic

SIJIHUO REFRACTORY company also produces Calcined Corundum at 800-1350℃ medium temperature and high temperature. By cooling, washing and sieving, the calcined corundum abrasives are with different color ranging with dark brown, brown blue, blue, light blue, and blue grey .

  • brown fused aluminium oxide

    Brown Fused Alumina F320

  • corundumabrasive

    Brown Fused Alumina F300

  • corundum F20

    Brown fused alumina F20

  • corundum China supplier

    Brown Fused Alumina F40

  • calcined bauxite 85

    calcined bauxite 85

  • calcined bauxite 80

    Calcined bauxite

How is brown fused aluminium oxide produced?

Brown Fused Alumina (BFA), is also known as Brown Fused Alumina or BFA, is made of superior calcined bauxite, melting at super high temperature condition approximately 2250℃ through an electric arc furnace processing. After series of processing including  aluminium oxide blocks cooling, crushing, grinding and pickling etc, brown fused aluminium is packed in jumbo bags or paper bag as per client’s requirement.

Advantages

Brown Fused Alumina

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. Angular shape gives it an aggressiveness that provides a clean, fast-cutting action, considerably increasing production rates.

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.

Application

Brown Fused Alumina Oxide – Bonded & Coated Abrasives

Mohs hardness 9.0 and such tough material with high strength, makes brown fused aluminium oxide as a necessary and superb raw materials for applications in abrasive industry:Such as grinding wheels, sandpaper, blasting media, metal preparation, lapping, polishing, and grinding, and abrasive discs, rolls, belts and pads.

Available grits:
AF for bonded Abrasives: F4~F320; AP for coated Abrasives: P12~P220

abrasives for grinding wheels

abrasives for grinding wheels

Brown Fused Alumina Oxide – Refractories & Ceramics

Well performance of thermal shock resistance makes brown fused alumina oxide an important and fabulous raw material for refractory industries as well. Refractory bricks, castable refractories, ramming mass, gunning mix etc.

Available grits: 0-1,1-3,3-5,5-8,8-12mm; 0-3, 0-5,0-10,0-25mm

Fine Powder: 0-180, 0-240, 0-320mesh

SIJIHUO REFRACTORY also developed special brown fused aluminum oxide for high performance abrasive product demands in recent years.. It’s with low titanium content product, by heat treated in a rotary kiln at high temperatures and magnetic treated. Suitable for top grade coated abrasives and bonded abrasives.

AC ( calcined corundum)&ACH (High temperature calcined corundum)
Bonded Abrasvies: F12 to F600; Coated Abrasives: P16 to P600

Technical Data Sheet

Physical Property

Color Mohs hardness Grain Status Bulk density/ g/cm3 Refractoriness/℃ Melting temperature/℃
Brown 9.0 Angular / Cubic 3.90 g/cm3 1900℃ 2050℃

Chemical Composition %

Application Grain size Al2O3 TIo2 CaO SiO2 Fe2O3 Magnetic material content%
FOR ABRASIVES F4~F80

P12~P80

 95.0~95.9 1.7~3.4 0.42max 1.0 max 0.3max 0.05 max
F90~F150

P100~P150

 94.5~95.9 1.7~3.6 0.42max 1.0 max 0.3max 0.03 max
F180~F220

P180~P220

 94.0~95.9 1.7~3.8 0.45max 1.2 max 0.3max 0.02 max
F230~F800

P240~P800

 93.5 min 1.7~3.8 0.45max 1.2 max 0.3max –
F1000~F1200

P1000~P1200

 93.0 min 4.0max 0.50max 1.4 max 0.3max –
P1200-P2500 92.5 min 4.2max 0.55max 1.6 max 0.3max
Application Grain size Al2O3 TIo2 CaO SiO2 Fe2O3 Magnetic material content%
FOR REFRACTORY 0-1mm
1-3mm
3-5mm
5-8mm
8-12mm		 95.0min 0.25max 1.0max 3.0 max – 0.05 max
0-3mm
0-5mm
0-10mm
0-25mm		 95.0min 0.25max 1.0max 3.0max – 0.05 max
180#-0
240#-0
320#-0		 94.0 min 0.30max 1.5max 3.5 max – 0.03 max

Standard Abrasive Particle Size

F Grits: F8#~F320#;  P Grits: P8#~P320#;  Micro Powder: F230-F1200(Customized sizes are available.)