Brown Aluminum Oxide The Essential Abrasive For Precision Casting

Place of Origin Changsha China
Brand Name Fine-tech
Certification ISO9001
Model Number 0-1mm
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
Hardness 9 Mohs Industry Precision Casting
Crystal Structure Hexagonal Soluble In Acids
Solubility Insoluble In Water Uses Abrasive & Refractory
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Product Description

Product Description:

Brown Aluminum Oxide The Essential Abrasive For Precision Casting


Brown Fused Alumina, also known as brown corundum, is a highly versatile and durable refractory material. It is produced by fusing bauxite in an electric arc furnace at high temperatures, resulting in a brownish coloured product with high hardness and extreme toughness.


During the production process, bauxite is melted in a tilting electric arc furnace, creating a product with exceptional temperature resistance, erosion resistance, machinery strength, and thermal stability. This makes it an excellent raw material for the manufacturing of shaped refractories.


The unique properties of brown fused alumina are attributed to its high purity, good crystallization, strong fluidity, low coefficient of linear expansion, and corrosion resistance. These characteristics have been verified by dozens of fire-proof production companies, with the product exhibiting no explosion, chalking, or cracking during application.


In particular, brown fused alumina offers a much higher cost-effectiveness compared to traditional brown corundum, making it the ideal aggregate and filler for fused alumina refractories. Its versatility and durability make it the perfect choice for a wide range of refractory applications.




High Hardness: Brown corundum has a Mohs hardness of 9.0, second only to diamond, making it extremely hard and highly resistant to wear.


High Chemical Stability: Brown corundum has exceptional chemical stability and corrosion resistance, making it capable of withstanding harsh environments such as acids, alkalis, and high temperatures.


High Density: With a density of 3.90g/cm3, brown corundum has a high mass and is significantly denser than most other materials.


Technical Parameters:


Brown corundum chemical composition content

and physical properties table

Chemical content(%) physical property
Al203 92.5-95.0% Proportion 3.50-3.90g/cm3
Fe203 0.3-1.0% Bulk density 1.30-1.90g/cm3
Si02 1.0-2.0% Mohs hardness 9
Ti02 1.5-4.0% Color Brown



  • Shot peening media: Brown corundum is used as shot peening media for parts made of metals to increase resistance to stress and fatigue.


  • Ceramic-bonded abrasives: Brown corundum is used in ceramic-bonded abrasives, which are typically used in precision grinding and finishing applications.


  • Resin-bonded abrasives: It is used in resin-bonded abrasives, which are commonly used in manufacturing operations such as cutting, grinding, and polish.


  • Sharpening stones: Brown corundum is used in sharpening stones, mostly used in the kitchen to sharpen knives and other utensils.


Packing and Shipping:


Our Brown Aluminum Oxide product is packaged and shipped to ensure safe and efficient delivery to our customers. Each package is carefully prepared and labeled to meet all necessary regulations and guidelines. 



  • 25kg bags
  • 1 ton super sacks
  • Custom packaging options available upon request



We offer both domestic and international shipping options for our Brown Aluminum Oxide product. Our shipping methods include:

  • Truck
  • Rail
  • Container
  • Air