Fused Brown Aluminum Oxide Al2O3

Fused Brown Aluminium Oxide (Al₂O₃) – Premium Abrasive & Refractory Material

Brown Fused Alumina (BFA) is produced by smelting high-grade bauxite and carbon materials (such as anthracite) in an electric arc furnace at high temperatures. Abrasive tools made from BFA are suitable for grinding metals with high tensile strength, including various types of carbon steel, malleable cast iron, and hard bronze. It is also widely used in the production of refractory materials.

BFA is characterized by its high purity, well-developed crystal structure, good flowability, low thermal expansion coefficient, and excellent corrosion resistance.

Key Properties​

Exceptional thermal stability for refractory linings in high-temperature environments such as furnaces, kilns, and incinerators.

High hardness rating (Mohs 9.0) ensures superior performance in grinding, cutting, and surface preparation applications.

Chemically inert material resistant to acids, alkalis, and molten metals, making it durable in corrosive industrial settings.

Excellent structural toughness maintains performance under mechanical stress, reducing wear and extending service life in abrasive applications.

Industrial Applications​

Refractory Solutions

Steel & foundry industries: linings for ladles, tundishes, and blast furnaces.

Cement and glass manufacturing: kiln furniture, burner nozzles, and thermal insulation components.

Chemical processing: high-temperature reactor parts and equipment linings.

Abrasive & Precision Processing

Coated abrasives production: sandpaper, grinding wheels, and cutting discs.

Surface treatment applications: shot peening, deburring, and anti-slip surface coatings.

Precision finishing: lapping and polishing in automotive, aerospace, and precision engineering components.

Available Grades & Sizes​

Grain Sizes (FEPA Standards – F & P Grades)

Coarse Grits: F12, F14, F16, F20, F24

Medium Grits: F30, F36, F40, F46, F54

Fine Grits: F60, F70, F80, F90, F100, F120, F150, F180, F220

Micro Powders (JIS & EU Standards)

JIS Standards: #240, #280, #320, #400, #500, #600, #800, #1000, #1200, #1500, #2000, #2500, #3000

EU Standards (F Series): F230, F240, F280, F320, F360, F400, F500, F600, F800, F1000, F1200, F1500

Section Sands & Fine Powders

Grit Ranges: 0-1mm, 1-3mm, 3-5mm, 5-8mm

Fine Powders: 200#, 320#, 325#

Product Specification: Fused Brown Aluminium Oxide (Al₂O₃)

Property	Specification
Raw Materials	High-purity bauxite, anthracite coal, and selected iron filings
Crystal Structure	Trigonal system (α-Al₂O₃)
Al₂O₃ Content	≥95% α-Aluminium Oxide (Al₂O₃)
Colour	Dark brown
Production Method	Electric arc fusion in tilting or fixed furnaces
True Density	≥3.9 g/cm³
Mohs Hardness	9.0 (Exceptional abrasion resistance)
Melting Point	2250°C (High thermal stability)
Grade	First Grade (Premium industrial quality)
Chemical Composition
- Al₂O₃	≥95%
- SiO₂	≤1.0%
- Fe₂O₃	≤0.15%
- TiO₂	2.2–2.8%

 

Superior Raw Material Base​

We select only the finest high-grade bauxite with over 85% Al₂O₃ content for producing our fused brown aluminium oxide. This ensures outstanding hardness, durability, and consistent performance, making it ideal for precision grinding, cutting, and surface preparation in demanding industrial applications.

Enhanced Secondary Refining​

Our brown fused aluminium oxide undergoes an additional 3-hour refining cycle beyond industry norms. This process increases grain purity and structural toughness, delivering higher resistance to wear and superior performance in abrasive applications.

Hand-Screened Quality Control​

Each production batch is manually graded and inspected by our experienced technicians. This hands-on approach guarantees precise particle size distribution, improved product consistency, and compliance with international quality standards.

Advanced Production & Purification Technology​

Equipped with modern 5-stage magnetic separation systems, we effectively remove impurities such as iron and silicon. Our manufacturing process ensures high-purity aluminium oxide that provides excellent cutting efficiency, longer service life, and cost-effectiveness.

Comprehensive Quality Assurance​

From raw material sourcing to final packaging, we implement rigorous quality checks aligned with ISO and EU standards. Our technical team oversees every production stage, ensuring that our abrasives meet the highest requirements for performance, reliability, and safety.

 

Refractory Production​

Brown fused alumina (Al₂O₃) is widely used in manufacturing high-temperature refractory products, including bricks, castables, and furnace linings. Its excellent thermal stability and corrosion resistance make it a preferred choice for industrial kilns, steel furnaces, and cement production facilities.

Abrasive Surface Preparation​

Ideal for sandblasting and shot peening applications, brown fused alumina efficiently cleans and prepares surfaces of metals, glass, and molds. It is commonly used in the treatment of aluminium, copper, and precision engineering components.

Precision Grinding & Polishing​

With its high hardness and uniform particle structure, brown fused alumina is suitable for grinding and polishing optical glass, watch lenses, silicon wafers, and gemstones. It ensures fine finishes and consistent results in precision manufacturing processes.

Bonded Abrasive Tools​

Brown fused alumina is a key material in the production of resin-bonded grinding wheels, cutting discs, and abrasive tools. Its toughness and wear resistance contribute to longer tool life and improved grinding efficiency in metalworking and fabrication.

Coated Abrasive Products​

Used as the abrasive grain in sandpaper, abrasive belts, and polishing sheets, brown fused alumina delivers effective material removal and surface finishing for wood, composites, and various metals.

Anti-Wear & Anti-Slip Fillers​

Added to industrial flooring, automotive brake pads, and sports surfaces, brown fused alumina enhances durability, friction resistance, and safety. It is also used in runway coatings and heavy-traffic pavement applications.

Filtration & Drilling Media​

In water treatment systems, brown fused alumina acts as a filtering medium for potable water and wastewater. It is also utilized in oil drilling as a weighting agent in drilling muds to control well pressure.

Hydro-Abrasive Cutting​

Applied in high-pressure waterjet cutting systems, brown fused alumina enables precise cutting of metals, stone, and composite materials. It is especially effective in pipeline fabrication, automotive part manufacturing, and industrial component processing.

1. Can I know more about your company?

Yes, we are Zhengzhou Fanchuang Science and Technology Co., Ltd, a professional abrasive manufacturer based in Henan, China. We focus on producing brown fused alumina, white fused alumina, and other abrasive products for industrial applications. With modern production facilities and strict quality control, we supply to customers worldwide, including the Middle East, Europe, and Southeast Asia. Our products are widely used in grinding, polishing, refractory materials, and surface treatment industries.

2. Can I request customized abrasive products?

Of course. We offer both product and packaging customization. You can specify grain size, material grade, chemical composition, or packaging design. We also support private label and OEM services. Just share your requirements, and our technical team will work with you to develop the right solution.

3. Do you provide free samples?

Yes, we provide free samples for quality testing. Sample preparation usually takes 1–3 working days. Freight charges are generally covered by the customer. We recommend sharing your DHL/FedEx account for faster delivery, or we can arrange cost-effective shipping for you.

4. How do you control product quality?

We maintain strict quality assurance at every step, from raw material selection to final packaging. Our production process includes magnetic separation, sieving, and manual inspection. Finished products are tested for chemical composition, hardness, density, and particle size distribution. We comply with international standards such as FEPA, ANSI, and JIS, and can provide test reports upon request.

5. What payment terms do you accept?

We support T/T (Bank Transfer), L/C (Letter of Credit), PayPal, and Western Union. For long-term partners, we can also offer flexible payment arrangements. Payment terms are confirmed before order confirmation to ensure smooth transactions.

6. What is your shipping and delivery process?

We mainly ship from Qingdao Port, China, which offers efficient connections to global destinations. Shipping time depends on the destination-for example, to Dubai it takes about 18–25 days by sea. We handle all export documentation and can assist with customs clearance if needed. For urgent orders, air freight is also available.

7. What is your minimum order quantity (MOQ)?

Our standard MOQ is 1 ton (20 bags, 25kg each) for bulk abrasive grains. For sample or trial orders, we can accommodate smaller quantities. Customized products may have different MOQ based on specifications.

8. Can you provide technical support?

Yes, we have an experienced technical team that can assist with product selection, application recommendations, and troubleshooting. We also provide product data sheets, safety information, and industry usage guidelines to help you achieve the best results.

Hot Tags: fused brown aluminum oxide al2o3, China fused brown aluminum oxide al2o3 manufacturers, suppliers, artificial sodium cryolite, backing plate material, iron pyrite powder, brown fused alumina oxide, cutting wheel t41, ball milling grains