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Brown Fused Alumina (BFA) is a robust synthetic abrasive derived from bauxite, featuring 95% Al₂O₃ purity. With exceptional hardness (Mohs 8.9) and thermal stability, it excels in heavy-duty grinding, refractory linings, and precision blasting. Available in grains/microgrits per global standards.

High-grade Brown Fused Alumina (BFA) with 95% Al₂O₃ content. Ideal for grinding, refractories & surface treatment. Mohs hardness 8.9, FEPA/JIS certified sizes. Request specs now!

Brown Fused Alumina Overview

Brown Fused Alumina (BFA), or brown corundum, is manufactured from high-quality bauxite at over 2000°C. Its high aluminum oxide (Al₂O₃) content (≈95%), dense structure, and angular grain shape ensure aggressive material removal and longevity.

Technical Specifications

Key Properties:
- Mohs Hardness: 8.9
- Bulk Density: 1.53–1.99 g/cm³
- Specific Gravity: 3.6–3.9 g/cm³
Impurity Control: Low iron/titanium oxides for consistent performance.

Standard Sizes & Forms

Segment Grit: 0-1mm, 1-3mm, 3-5mm, 5-8mm
Fine Powder: 200#-0, 320#-0
Grain Sand (FEPA): 8# to 220#
Microgrits:
- W Scale: W63 to W7
- FEPA Microns: F230 to F800
- JIS Standards: #240 to #1500

Primary Applications

Refractory Solutions: Furnace linings, castables, fire bricks.
Abrasive Blasting: Rust removal, surface preparation.
Grinding Tools: Resin-bonded wheels, sandpaper, cutting discs.
Industrial Polishing: Metal, stone, and ceramic finishing.
Anti-Slip Coatings: Epoxy floorings, FRP wear-resistant layers.
Precision Casting: Investment mold media.
Diamond Tool Production: Dry/wet cutting segments.

Advantages of BFA

High Cutting Efficiency: Angular grains enhance material removal.
Thermal Shock Resistance: Stable in extreme foundry conditions.
Cost-Effective: Durable abrasive reduces operational costs.
Versatility: From heavy steel grinding to cosmetic polishing.