Fused Brown Alumina Description

Brown Fused Alumina (BFA) from Advanced Ceramic Materials (ACM) is a high-performance aluminum oxide abrasive produced by electric arc fusion of high-quality bauxite at temperatures exceeding 2000°C. Our brown aluminum oxide grit features exceptionally low linear expansion, high corrosion resistance, and consistent particle shape—making it the preferred media for surface preparation, precision investment casting, and high-temperature refractory formulations. ACM maintains finished inventory in the USA, ensuring short lead times and full lot traceability with COA documentation per ASTM standards.

Fused Brown Alumina Specifications

Fused Brown Alumina Applications

Brown Fused Alumina is widely employed across multiple industries:

• Surface Preparation & Sandblasting – Provides aggressive cleaning and profiling for metal substrates before coating or bonding.
• Precision Investment Casting – Used as a primary shell-building material for aerospace and turbine components.
• Grinding & Polishing – Suitable for vitrified and resin-bonded grinding wheels, coated abrasives, and lapping compounds.
• Refractory Formulations – Incorporated into high-temperature castables, ramming mixes, and kiln furniture.
• Anti-Slip Flooring & Abrasive Blast Media – Offers durable, wear-resistant surface textures.

For specific application guidance, contact ACM’s technical team.

Quality Assurance

Every lot of Brown Fused Alumina shipped by ACM is accompanied by a detailed Certificate of Analysis (COA) documenting:

• Chemical composition (ICP or XRF analysis)
• Particle size distribution (sieve analysis per ASTM E-11)
• Magnetic particle content
• Bulk density measurement

ACM maintains rigorous quality control procedures to ensure batch-to-batch consistency and full material traceability.

Packaging

ACM offers flexible packaging options to suit your operational needs:

• 25 kg multi-wall paper bags with inner liner
• 500 kg super sacks (FIBC)
• Custom bulk bag configurations available upon request

All products are carefully handled during storage and transportation to preserve material integrity. As a US-based supplier, ACM provides competitive lead times and responsive customer support for domestic and international shipments.

Frequently Asked Questions

What mesh sizes are available for Brown Fused Alumina?

Standard grit sizes include 16#, 24#, 36#, 46#, 60#, 80#, 120#, and finer micron grades. Custom particle size distributions are available upon request.

How does Brown Fused Alumina differ from White Fused Alumina?

Brown Fused Alumina contains a higher TiO₂ content and exhibits greater toughness, making it more suitable for heavy-duty grinding and blast cleaning. White Fused Alumina is harder and more friable, preferred for precision finishing and coated abrasives.

Is this material suitable for high-temperature refractory applications?

Yes. With a melting point of 2000°C and low linear expansion, it is commonly used in high-alumina refractory castables, kiln furniture, and ceramic filter applications.

What is the typical lead time for US deliveries?

Standard stock sizes ship within 1–3 business days from our US warehouse. Custom sizes and large-volume orders may require additional processing time; please inquire for current availability.

Does ACM provide technical support for material selection?

Absolutely. ACM’s US-based material engineers are available to assist with grade selection, sizing recommendations, and application troubleshooting.