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CG MATERIAL

Calcined Alumina

Calcined Alumina

Calcined alumina, also known as aluminum oxide, is a white crystalline powder that is made by heating aluminum hydroxide to high temperatures, typically around 1200-1500°C. The process of calcination removes the water and other impurities from the aluminum hydroxide, resulting in a pure form of aluminum oxide.

Calcined alumina has a wide range of applications, thanks to its excellent physical and chemical properties. It is a highly refractory material, meaning it can withstand high temperatures without melting or degrading. This makes it a valuable ingredient in the production of refractory materials, including ceramics, glass, and cement.

In addition to its high refractoriness, calcined alumina also has good mechanical strength and excellent electrical insulation properties, making it a useful material in the production of electrical insulators, high-performance coatings, and abrasives.

Calcined alumina is available in a variety of grades, each with specific properties tailored to different applications. For example, fine-grained calcined alumina is often used in polishing and lapping applications, while coarser grades are used as abrasives or as a filler in refractory materials.

Overall, calcined alumina is a versatile material that offers excellent thermal, mechanical, and electrical properties, making it a valuable component in a wide range of industrial applications.

 

Catalog No. CERAMICS
Size Customized
Material Al2O3
Purity 95% 99% 99.7%
Density 3.8~3.9 g/cm3

 

At CG Material, we offer high quality Calcined Alumina with exceptional purity and precision in terms of size. Our products range in diameter from 1mm to 100mm and have a purity level of up to 99.8%. We also provide custom manufacturing options for special shapes to meet specific needs.

 

Calcined Alumina Specifications

  MN/Y MN/Y-407 DN-6 DN-440 DN-430 DN-420 DN-206
Al2O3 (%) ≈99.0 ≈99.0 ≈99.3 ≈99.3 ≈99.3 ≈99.3 ≈99.3
Na2O (%) 0.4 – 0.9 0.6 – 1.1 ≤0.5 ≤0.5 ≤0.5 ≤0.5 ≤0.5
Specific Surface Area (m2/g) 0.15 0.35 0.6 – 0.11 0.2 – 0.5 0.3 – 0.7 0.3 – 0.7 0.3 – 0.7 0.5 – 0.9
Particle Size Distribution d50 (µm) ≈70 7 – 10 ≈80 12 – 28 10 – 20 6 – 10 6 – 8
Particle Size Distribution d90 (µm) ≈120 15 – 30 ≈200 70 – 100 50 – 80 10 – 60 44489
Primary Crystal Size (µm) ≈15 ≈7 ≈6 ≈6 ≈6 ≈6 ≈6
Oil Absorption (ml/100g) ≈60 ≈18 ≈43 ≈30 ≈25 ≈20 ≈20
Cutting Effect 9 8 9 8 8 7 7
Polishing Effect 1 3 1 2 3 3 3

*For more information, please contact us.

Calcined Alumina Applications

It is widely used in electronics, chemicals, petroleum, refractories, ceramics, glass, plastics, textiles, building materials, abrasives, paper and medicine, and many other fields.

Packaging

We handle our products with care to ensure they remain in their original condition during storage and transportation and to preserve their quality.

 

 

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