Brown Fused Alumina

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Brown Fused Alumina

Lane Abrasives specializes in producing brown fused alumina (BFA), also known as brown aluminum oxide, through a refined electric arc furnace process. This material is renowned for its robustness and versatility, formed into a wide array of shapes and sizes, from macrogrits to microgrits and ultra-fine powders. Characterized by its impressive Mohs hardness of 9, brown fused alumina exhibits superior strength, exceptional wear and corrosion resistance, and notable thermal conductivity.

As a staple in various industrial sectors, brown fused alumina is primarily utilized in the production of refractory materials and ceramic components. Its abrasive qualities make it ideal for manufacturing grinding wheels and sandpaper, serving as a critical component in blasting media for surface preparation, and used in metalworking processes. Additionally, BFA is incorporated into laminates and coatings, enhancing their durability and performance under extreme conditions.

In the realm of finishing and surface treatment, brown fused alumina is essential for lapping and polishing operations, ensuring precision and a high-quality finish. Lane Abrasives ensures the availability of its BFA in a comprehensive range of grit and powder sizes, catering to standard requirements and customizable to specific industry needs, underscoring its adaptability and essential role in abrasive and refractory applications.

Grain Property

TYPICAL CHEMISTRY

Al2O3 >95.00%

COLOR

Brown

GRIT AVAILABLE

F12-F220/P12-P220

F240-F1200/P240-P2500

0-1mm, 1-3mm, 1-10mm, 0-25mm, 100F, 200F, 325F or as required

Brown Fused Alumina Parameter

Hardness 9 Mohs
Grain Shape Angular/Spherical
Melting Point 2250℃
Specific Gravity 3.5-3.9 g/cm³
Bulk Density 1.5-2.2 g/cm³
Brown Fused Alumina FEPA Granularity Range Chemical Component  % Mangetic Content
Al2O3 Fe2O3 SiO2 TiO2
F4~F80/P8~P80 ≥95.0 ≤0.25 ≤1.0 ≤3.0 ≤0.005
F90~F150/P100~P150 ≥95.0 ≤0.3 ≤1.0 ≤3.0 ≤0.003
F180~F220/P180~P220 ≥94.5 ≤0.3 ≤1.5 ≤3.5 ≤0.002
Brown Fused Alumina Refractory 0-1mm, 1-3mm,3-5mm, 5-8mm, 8-12mm ≥95.0 ≤0.25 ≤1.0 ≤3.0 /
0-3mm, 0-5mm, 0-10mm, 0-25mm ≥95.0 ≤0.3 ≤1.0 ≤3.0 /

Brown Fused Alumina Applications

Brown fused alumina (BFA), known for its toughness and hardness (Mohs hardness of 9), is utilized extensively across various industries due to its high strength, excellent wear and corrosion resistance, and good thermal conductivity. Here are some of the primary applications of brown fused alumina:

  1. Abrasives: BFA is widely used in abrasive manufacturing, including grinding wheels, sandpaper, and abrasive blasting media, where its hardness makes it effective for cutting and grinding other materials.
  2. Refractories: Due to its high temperature and corrosion resistance, BFA is a common ingredient in the manufacture of refractory bricks, castables, and mortars, used in furnaces, kilns, and incinerators.
  3. Ceramics: In the ceramics industry, brown fused alumina is used to produce ceramic grinding media, wear-resistant ceramic linings, and ceramic proppants for hydraulic fracturing.
  4. Metal Preparation: BFA is utilized in surface preparation processes such as shot blasting and grinding to clean and condition metal surfaces prior to coating or painting.
  5. Polishing: It serves as a material for polishing metals, glass, and ceramics, providing a high-quality finish due to its abrasive properties.
  6. Laminates: Used in the manufacturing of laminates as a filler material to enhance their strength, durability, and resistance to heat and wear.
  7. Coatings: Incorporated into anti-slip coatings or wear-resistant coatings for floors and surfaces that require high durability and resistance to abrasion.
  8. Filter Media: In water filtration systems, BFA can be used as a filter media to remove impurities due to its hardness and density.
  9. Concrete: Its high hardness and abrasive properties make BFA a component in high-strength concrete mixtures and non-slip surfaces.
  10. Composite Materials: As a reinforcement material in composite manufacturing, adding to the strength and wear resistance of the composite product.

Brown fused alumina’s versatility and robust properties make it an essential material in applications demanding high strength, wear resistance, and thermal stability.