——PRODUCTS CENTER——

 

   Product Description


Alpha Alumina (α-Al₂O₃) is the most thermodynamically stable phase of alumina, produced through high-temperature calcination processes. It features a well-defined crystal structure, high hardness, and excellent resistance to heat and chemical corrosion.

With controlled particle size distribution and high purity, α-alumina is widely used as a key raw material in advanced ceramics, refractories, polishing applications, and functional materials. It ensures consistent performance in both industrial and high-end applications.

Different grades are available to meet various requirements in particle size, purity, and application performance.


   Product Features


  • High phase stability (α-phase), suitable for high-temperature applications

  • High purity, ensuring minimal contamination

  • Excellent hardness and wear resistance

  • Good thermal stability and chemical inertness

  • Controlled particle size distribution

  • Suitable for a wide range of industrial applications


   Technical Specifications


Item

Unit

Typical Value

Al₂O₃

%

≥99.5 / ≥99.9

Phase

α-Al₂O₃ ≥95%

SiO₂

%

≤0.05

Fe₂O₃

%

≤0.03

Na₂O

%

≤0.3

Bulk Density

g/cm³

≥3.9

Particle Size (D50)

μm

0.5–10 (customizable)

Remark: Specifications can be customized according to application requirements.


   Applications


  • Ceramics: Structural ceramics, electronic ceramics

  • Refractories: High-temperature refractory materials

  • Polishing: Precision polishing powders and slurries

  • Coatings: Wear-resistant and thermal coatings

  • Advanced Materials: Catalyst carriers, functional fillers


   Packaging & Storage


  • Available in 25 kg bags or jumbo bags

  • Moisture-proof inner liner

  • Store in a dry and ventilated environment


   FAQS


Q: Does it support customized production?

A: Yes, particle size distribution, packaging and special indicators can be adjusted according to needs.


Q: How to pack and ship?

A: Moisture-proof woven bags or ton bags;Sea/air transportation, DDP, FOB,CIF and other trade terms are available.


Q: Can you provide samples?

A: Free samples of 1-2kg will be sent out within 3 working days.


Q: Do you guarantee safe and secure delivery of products?

A: Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.


Submit

Relevant recommendations