Hexagonal Trigonal Crystal Structure Brown Fused Oxide 9 Mohs Hardness

Place of Origin Changsha China
Brand Name Fine-tech
Certification ISO9001
Model Number 100 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
PH 7.0-8.5 Al2O3 ≥95%
Melting Point 2072°C Grain Shape Regular And Sharp-edged
Crystal System Trigonal Hardness 9 Mohs
Crystal Structure Hexagonal
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Trigonal Crystal Brown Fused Oxide


Hexagonal Crystal Brown Fused Oxide


9 Mohs Brown Fused Oxide

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Product Description

Product Description:

Brown Fused Alumina is created by the fusion of bauxite in an electric arc furnace at high temperatures. The product appears brown in color and has excellent hardness and toughness. Furthermore, it exhibits high temperature resistance, strong erosion resistance, high strength and thermal stability. It is an ideal raw material for the manufacture of shaped refractories.


Brown aluminum oxide is produced by using premium raw materials and 3500 KVA furnace. It is a highly usable material, perfect for general abrasive applications in bonded abrasive tools, polishing and sandblasting. Its hardness and abrasive capacity is a lower than diamond, boron carbide and silicon carbide, making it suitable for grinding ferrous materials, tough, and hard materials. Furthermore, it is often used as high-class refractory materials and is offered in macro and micro-powder forms, in F and P grades.



Brown corundum was used as sandblasting surface treatment, because of its relatively high density, so that is less dust in the process of sandblasting. This ensures operator health and safety, at the same time it can improve operator visibility.Different from conventional abrasive materials, brown corundum is a pure non-toxic mineral, which does not contain harmful free silicon substances that lead to silicosis, toxic heavy metals or radioactive pollutants. In addition, the low consumption and recyclability of products can greatly reduce the amount and cost of waste disposal after the product is used.


Brown corundum is very suitable for many fields. Normally, it can be reused several times. If it has not lost its cutting ability after the first time, the number of cycles can be more. Without cutting ability, brown corundum can also be recycled and applied to the construction industry as cement additive.


Technical Parameters:

Chemical Constitution

Al2O3: ≥96.3%

SiO2: ≤1.4%

Fe2O3: ≤0.21%

TiO2: ≤1.5%


Physical Properties


Mohs Hardness: 9

True Density: 3.9 g/cm3

Bulk Density: 1.60~1.95g/cm3

Ig-Loss: ≤0.09%



Brown corundum is a versatile abrasive and is used in a wide variety of applications. For instance, it is used as an abrasive in wire sawing operations for cutting complex shapes in materials. It is also used in precision casting to produce high accuracy components. Besides, it is used in lining materials due to its resistance to high temperatures and in grinding pastes for optical lens grinding, tool manufacturing, and polishing. It is also used as a binding agent in diamond grinding wheels for high-precision grinding. Furthermore, brown corundum can be used in metal surface treatment, including cleaning, degreasing, and polishing, as well as in the production of cutting discs for stone and concrete.



Brown Aluminum Oxide - Customized Service by Fine-tech

Product Name: Brown Fused Aluminum

Brand Name: Fine-tech

Model Number: 100 mesh

Place of Origin: Changsha, China

Certification: ISO9001

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

Crystal System: Trigonal

Al2O3: ≥95%

Color: Brown

Grain shape: Regular And Sharp-edged

Applications: sandpaper, industrial alumina powder, colour of aluminium oxide.


Packing and Shipping:

Brown Aluminum Oxide is typically packaged in 25 kg multi-ply paper bags or in 1000 kg bulk bags. For shipping, the bags are stacked on pallets and shrink-wrapped to protect them during transport.