Astrra Chemicals Aluminium Oxide Powder

Product Details:

Uses and applications of Brown Aluminium Oxide (also known as Brown Fused Alumina or BFA) across various industries:

Brown Aluminium Oxide is a hard, tough, and durable abrasive material made by fusing bauxite in an electric arc furnace. It consists mainly of Aluminum Oxide (Al₂O₃) with a small percentage of Titania (TiO₂) and other impurities.

• Hardness: ~9 on Mohs scale

• Color: Brown

• Melting Point: ~2,050°C

• Typical Grit Sizes: F12 to F220 (macro), F240 to F1200 (micro)

• Grinding wheels: Used in resin-bonded and vitrified wheels for grinding hardened steel, alloy steel, and cast iron.

• Sandpaper & abrasive cloth: Ideal for both wet and dry applications.

• Blasting media: For surface preparation, rust removal, and finishing of metals, concrete, and composites.

• Polishing: Suitable for rough and intermediate polishing operations.

• Refractory bricks & castables: Used in linings for furnaces, kilns, and incinerators due to its high heat resistance.

• Ceramic shapes & tiles: In applications requiring thermal stability and abrasion resistance.

• Shot blasting and sandblasting: For cleaning, deburring, and roughening surfaces before coating or painting.

• Etching & frosting of glass: Achieves decorative or functional textures.

• Lapping & honing: In precision metal finishing.

• Tool sharpening: Used in stones and belts for sharpening cutting tools.

• Used in floor coatings, runways, and steps for enhancing traction and preventing slips.

• As a raw material additive to improve wear resistance and strength of ceramics.

• Sometimes used as a media in industrial filtration systems, especially for high-speed filtration of contaminants.

• High hardness and toughness

• Reusable in blasting applications

• Thermally stable at high temperatures

• Electrically non-conductive

• Cost-effective compared to White Fused Alumina