High-Quality Brown fused alumina for Abrasive & Refractory Applications

Brown Fused Alumina (BFA), also known as brown aluminum oxide, is a high-performance artificial abrasive and refractory material produced by smelting high-quality bauxite with anthracite and iron filings in a high-temperature electric arc furnace above 2050℃. Featuring a uniform brown crystalline structure, a dense texture, and stable chemical properties, it is one of the most widely used general-purpose abrasive materials in industry worldwide. Our BFA products strictly adhere to international production standards, with low magnetic content, high purity, and excellent grain integrity, delivering consistent, reliable performance for grinding, sandblasting, polishing, and high-temperature refractory applications.

• Exceptional Hardness & Toughness: With a Mohs hardness of 9 and true density of 3.90 g/cm³, it offers high strength, superior grinding efficiency, and wear resistance, maintaining stability in high-intensity processes.
• High Purity & Stable Performance: Minimum Al₂O₃ content of 95% (up to 97% for high-end grades) with strictly controlled impurities, low magnetic material content, and consistent batch-to-batch performance.
• Excellent Thermal Stability: Melting temperature of 2050℃ and refractory temperature of 1900℃, resisting thermal shock and corrosion, ideal for high-temperature industrial environments.
• Eco-Friendly & Energy-Saving: Adopting advanced fixed furnace smelting technology, it meets global “double carbon” requirements, is non-toxic and odorless, and compliant with RoHS and ISO 9001:2015.
• Customizable Specifications: Flexible customization of particle size (4#-8000#), granularity, and Al₂O₃ content (91%-97%) to match different application scenarios.
  

  Wide Applications of Brown Fused Alumina

  Our brown corundum is widely used in over 100 industrial fields worldwide, covering traditional heavy industry and emerging high-end manufacturing, perfectly adapting to the changing demand structure of the global market:

  • Abrasive Industry: Core raw material for grinding wheels, sandpaper, etc. Suitable for grinding high-tensile metals and non-metallic materials, boosting processing efficiency and surface finish.
  • Refractory Industry: Used to produce high-alumina refractory products (fire bricks, castables, etc.) for industrial furnaces and steelmaking ladles, extending service life.
  • Casting & Foundry: Applied in investment and sand casting to improve cast surface smoothness, reduce defects, and enhance casting mechanical properties.
  • Sandblasting & Surface Treatment: Ideal blast media for rust removal, deburring, and surface roughening; non-toxic, suitable for food machinery and medical equipment treatment.
  • Emerging High-End Fields: High-purity fine powder for photovoltaic silicon wafer cutting, aerospace component machining, and semiconductor manufacturing, meeting high-end industry requirements.
  • Other Applications: Wear-resistant aggregates for floors, fillers for ceramics/glass, and raw materials for aluminum oxide ceramics.

  Brown Fused Alumina Characteristics Index

Size	Al2O3 ≥ %	Fe2O3 ≤ %	TiO2 ≤ %	SiO2 ≤ %	Density ≥ g/cm³	Refractoriness ≥ ℃	Packing Density g/cm³	Bulk Density g/cm³
	Particle size	95	0.5	3	1	3.90	1850	1.5 – 1.95	3.8
Fine powder	95	0.5	3	1	3.90	1850	1.4 – 1.8	3.8
Micro powder	94	0.5	3.5	1	3.90	1850	1.4 – 1.8	3.7