Hexagonal Brown Al2O3 Aluminum Oxide for Industrial

Place of Origin Changsha China
Brand Name Fine-tech
Certification ISO9001
Model Number F60
Minimum Order Quantity 500KG
Price Negotation
Packaging Details 25kg/barrel, 25kg/bag, 1t/pallet
Delivery Time 5-15 work days
Payment Terms L/C, T/T
Supply Ability 2000t per year

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Product Details
Crystal Structure Hexagonal Refractive Index 1.63-1.76
Chemical Formula Al2O3 Shape Irregular
Product Name Brown Aluminum Oxide Hardness 9 Mohs
Crystal System Trigonal Particle Size 300-250um
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Brown Al2O3 Aluminum Oxide


Industrial Brown Al2O3 Aluminum Oxide


Hexagonal Al2O3 Aluminum Oxide

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Product Description

Product Description:


Brown corundum is made from high-quality bauxite as raw material and blended with anthracite and iron filings. Processed through an arc smelting process that brings the temperature up to 2000°C or higher, the result is a dense and hard texture. It is then further crushed and plasticized via a self-grinding machine, magnetically selected to remove any iron particles, and sieved into various sizes.


The versatility of this material allows for it to be used in a variety of applications. It makes for excellent ceramic production, high-resistance abrasive resin and grinding, precision casting, sandblasting and polishing. It even has a high-grade refractory application. Its spherical pellets, produced with the process outlined above, make for an ideal end product.




Under a certain pressure, Brown corundum can quickly impact the surface of the object with a large number of sharp edges. This makes it a very fast spray grinding method because the acceleration and velocity of particles in the air flow are a function of inertance and particle size. The smaller the particle, the easier it is to accelerate, thus resulting in a higher impact force on the surface of the object.


Brown corundum is highly valued by many for abrasive applications due to its high Mohs hardness, exceptional wear resistance, and quality surface finish. It offers a consistent particle size distribution, high strength and durability, and leaves surfaces smooth with a consistent texture. This makes it a sought-after choice for many industrial and domestic applications, and increases productivity as it requires fewer replacements and works twice as fast as other conventional abrasives.


Technical Parameters:


Aluminum oxide (Al2O3) is a solid crystalline material that is brown in color. It has a hardness of 9 Mohs,* which is the highest on the Mohs scale of mineral hardness. The melting point of aluminum oxide is 2045°C (3723°F) and its boiling point is ~2980°C (5400°F). Its density is 3.9 g/cm³ and its refractive index is 1.76.


Furthermore, the specific heat capacity of aluminum oxide is 0.88 J/gK and its thermal conductivity is 30.0-35.0 W/mK at room temperature. On the Mohs hardness scale of abrasives, it has a hardness rating of 9. Aluminum oxide has a bulk density of 1.57-1.65 g/cm³ and its grain shape is regular and sharp-edged. It is non-magnetic and has a crystal structure that is trigonal hexagonal.




Brown Corundum is a common material in many industries. It is widely used in grinding wheels for sharpening and finishing metal such as steel, iron, and alloys. Moreover, it is popularly applied when polishing a variety of materials, including glass, stones, and metals, offering a shiny surface. In addition, it is applied in sandblasting to remove grease, rust, old paint, and stubborn stains. Furthermore, it is a must component in the manufacture of refractory materials such as firebricks, furnace linings, ceramic products, and crucibles.


Other than those applications mentioned above, Brown Corundum is featured in abrasive blasting kits for cleaning variety of materials, including wood, metals, and ceramics. Yielded with its excellent properties, it does the job well. In summary, Brown Corundum is a versatile material with abundant use in many industries.


Support and Services:


At Brown Aluminum Oxide, we provide technical support and service to all of our customers. Our knowledgeable and experienced staff are available to assist you with any questions or issues you may have regarding our products. We can provide you with detailed information on product specifications, usage, and maintenance. We also offer on-site technical support to help you with installation and troubleshooting.

In addition, we provide a wide range of repair and maintenance services, including warranty repairs, preventative maintenance, and upgrades. We also offer custom solutions to meet your specific needs. Our team of experts is here to help you maximize the performance of your Brown Aluminum Oxide product.


If you have any questions or concerns about our product or services, please do not hesitate to contact us. Our customer service team is always happy to help.



  • Q: What is Brown Aluminum Oxide?
    A: Brown Aluminum Oxide is an abrasive material manufactured by Fine-tech. It is made of corundum, which is electrofused under high temperature.
  • Q: What is the model number of Brown Aluminum Oxide?
    A: The model number of Brown Aluminum Oxide is F60.
  • Q: Where is Brown Aluminum Oxide made?
    A: Brown Aluminum Oxide is made in Changsha, China.
  • Q: What is the minimum order quantity for Brown Aluminum Oxide?
    A: The minimum order quantity for Brown Aluminum Oxide is 500KG.
  • Q: What is the price of Brown Aluminum Oxide?
    A: The price of Brown Aluminum Oxide is negotiable.