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Alumina Spheres

Alumina Spheres

Alumina spheres are spherical particles made from high-purity aluminum oxide (Al2O3) that are used in a variety of industrial applications. They are typically produced through a process called spray drying, which involves spraying a slurry of alumina particles into a hot chamber, causing the liquid to evaporate and leaving behind solid spherical particles.

Alumina spheres are highly resistant to wear and corrosion, making them ideal for use in abrasive and corrosive environments. They are also highly heat-resistant, with melting points above 2,000°C, making them useful in high-temperature applications.

Alumina spheres are commonly used as a packing material in columns for gas and liquid chromatography, where their high surface area and uniform size distribution allows for efficient separation of compounds. They can also be used as a catalyst support in chemical reactions, due to their high surface area and thermal stability.

Other applications of alumina spheres include use as a filler material in epoxy and other composite materials, as a grinding media in ball mills, and as a material for manufacturing refractory bricks and other high-temperature ceramics.

Alumina spheres are available in a range of sizes and purities, with surface areas and pore volumes that can be tailored to specific applications. Overall, they offer a combination of high strength, wear resistance, and thermal stability that makes them a valuable material for a 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 Alumina Spheres 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.


Alumina Spheres Specifications

Physical Properties Unit Value
Bulk Density g/cm3 3.60
Apparent Porosity 0%
Flexural Strength Mpa 334.4
Elastic Modulus Gpa 190.0
Compressive Strength Mpa 1461.7
Vicker’s Hardness VNM – 1136
Fracture Toughness MPa/M2 3.3

Alumina Spheres Advantages

-High Melting Point High Hardness

-High Compression Strength

-Abrasion / Wear-Resistance

-Chemical Inertness

-Resistance to Thermal Shock

-High Melting Point

Alumina Spheres Applications






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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