Chemical Formula Al2O3 High Density Brown Fused Aluminum Oxide

Place of Origin Changsha China
Brand Name Fine-tech
Certification ISO9001
Model Number 60 mesh
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
Application Ceramic-bonded Abrasives Color Brown
Product Name Brown Fused Aluminum Usage Cladding Welding
Crystal Structure Hexagonal Hardness 9 Mohs
Chemical Formula 99.5%Al2O3
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Brown Fused Aluminum Oxide Abrasives


High Density Fused Aluminum Oxide


Hexagonal Fused Aluminum Oxide

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Product Description

Product Description:

Chemical Formula Al2O3 High-Density Brown Fused Aluminum Oxide

Brown corundum is a type of abrasive material consisting of high-quality bauxite, anthracite, and iron filings. It is made by melting the raw material together at a temperature of 2000°C or higher. The product is then self-ground, magnetically selected to remove iron, sieved into different sizes, and has a dense and hard texture. Brown corundum is characterized by its high purity, good crystallization, and strong fluidity. It also has a low coefficient of linear expansion and corrosion-resistant properties.


This material is suitable for producing ceramic, high-resistance abrasive resin, and grinding, polishing, sandblasting, and precision casting applications. It can also be used to manufacture high-grade refractories. These characteristics make brown corundum an ideal aggregate and filler for the production of fused alumina refractories, as it is much more cost-effective than traditional abrasives.

The practical effects of this product have been verified by many manufacturers of fire-proof production. They have found that it is stable and does not explode, chalk, or crack during use.



Brown corundum was used for the sandblasting surface, due to its relatively high density, resulting in less dust. This contributes to the health and safety of operators as visibility is increased.The unique particle size of brown corundum enables more effective particles to hit the surface of the object, reducing the depletion of abrasive significantly. In the sandblasting process, brown corundum can penetrate deep into the holes and pits on the surface reaching the bare metal. This allows to completely remove all rust, water-soluble salts and other pollutants, resulting in high-quality surface treatment.


Moreover, unlike conventional abrasive materials, brown corundum is pure and non-toxic, free of any harmful free silicon substances, toxic heavy metals and radioactive pollutants that lead to silicosis. Furthermore, it is fully recyclable and can be used several times in many fields. In fact, if its cutting ability is still intact after its first use, the number of cycles can be even more.


Technical Parameters:

Chemical Constitution:

Al2O3: ≥96.3%

SiO2: ≤1.4%

Fe2O3: ≤0.21%

TiO2: ≤1.5%


Physical Properties:

Colour: Brown

Mohs hardness: 9

True density: 3.9 g/cm3

Bulk density: 1.60-1.95 g/cm3

Ig-Loss: ≤0.09%



Brown corundum is used for a wide range of applications. For example, it is used in wire sawing operations to cut complex shapes in different materials. It is also used in precision casting, which is the process of producing high accuracy components for aerospace, automotive and medical industries. In addition, its excellent resistance to high temperatures make it a great material for lining furnaces and kilns.


Furthermore, Brown corundum can also be used for grinding pastes, which can be applied for various operations such as optical lens grinding, tool manufacturing and polishing. It is also used in ultrasonic grinding, which is a non-contact machining process. As a binding agent, it is used to produce diamond grinding wheels that are typically used in high-precision grinding operations.


Additionally, it is also used in metal surface treatments, such as cleaning, degreasing and polishing. Its cutting discs are able to cut stone and concrete. Its ability to remove stains and clean surfaces make it ideal for dry sanding on metals and other materials, as well. Moreover, it is used to produce coated abrasive products such as sandpaper and abrasive belts. Last but not least, it can provide traction and prevent slips and falls in high traffic areas as a non-skid flooring material.



Fine-tech has been producing quality alumina grit blasting and Aluminum Oxide Brown products for many years. Our brown fused alumina has a model number of 60 mesh and a place of origin of Changsha China. It is ISO9001 certified and the minimum order quantity is 500KG. The price is negotiable and the Packaging Details are 25kg/barrel, 25kg/bag, 1t/pallet. The Delivery Time is 5-15 work days and the Payment Terms are L/C, T/T. The Supply Ability is 2000t per year and the Usage is for Cladding Welding. The Color is Brown and the Refractive Index is 1.63-1.76. The Crystal System is Trigonal and the Hardness is 9 Mohs.


Packing and Shipping:

Brown Aluminum Oxide is usually packaged in 25kg bags, 1000kg big bags, and 25 tons in a 20ft container. It is shipped in 20ft containers with 25 tons. The products are palletized and wrapped in plastic to ensure safe and secure delivery.