Calcined α-Alumina is a high-purity aluminum oxide material produced through controlled high-temperature calcination. It offers excellent hardness, thermal stability, and chemical resistance, making it ideal for advanced industrial and refractory applications.
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Calcined α-Alumina is a premium-grade aluminum oxide (Al₂O₃) characterized by its stable alpha crystal structure, high purity, and superior physical properties. Manufactured through precise calcination at elevated temperatures, it delivers outstanding hardness, low porosity, excellent wear resistance, and exceptional thermal stability.
This material is widely valued for its consistent particle size distribution, high density, and strong resistance to chemical corrosion. Thanks to its reliable performance under extreme conditions, calcined α-alumina is an essential raw material in ceramics, refractories, abrasives, and advanced engineering materials. Its quality and stability help improve product lifespan, processing efficiency, and overall performance.
| Item | Content(%) |
|---|---|
| Al₂O₃ | ≥99.5 |
| α-Al₂O₃ | ≥93 |
| Na₂O | ≤0.30 |
| SiO₂ | ≤0.03 |
| Fe₂O₃ | ≤0.02 |
| L.O.I | ≤0.03 |
| Storage | Keep dry and airtight storage |
| Note | Adjustment is available according to client's requirement |
| Package | a. Jumbo bags b. Packed in 25kg bags with inner plastic and outer braid, and then Jumbo bags c. Customized Packaging |
Calcined α-Alumina is extensively used in:
Advanced ceramics and technical ceramic components
High-temperature refractories and kiln linings
Abrasives, polishing, and grinding materials
Electronic substrates and insulating components
Wear-resistant and corrosion-resistant industrial parts
Its excellent thermal and mechanical properties make it a reliable choice for demanding industrial environments.
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