Product Features
- Unique bimodal gradation particle size distribution
- High purity and low impurity content
- Good fluidity and high packing density
- Excellent thermal stability and fire resistance
- Low sintering shrinkage and good dimensional stability
- Outstanding sintering activity
- Suitable for high-end fields such as high-performance ceramics and refractory materials
Application Fields
Advanced Structural Ceramics
Ceramic cutting tools, ceramic bearings, seals, wear-resistant ceramic parts, improving density and strength.
Electronic Ceramic Materials
Ceramic substrates, insulating components, LED ceramic supports, with uniform sintering and good insulation.
Advanced Refractory Materials
High-grade corundum castables, precast parts, high-temperature kiln furniture, featuring good fluidity, easy forming and high-temperature stability.
Thermal Conductivity Fillers & Ceramic Fillers
Used in thermally conductive silica gel and epoxy resin fillers; high filling rate and excellent thermal conductivity due to bimodal gradation.
Precision Casting & Ceramic Cores
High high-temperature strength, low sintering shrinkage and high dimensional accuracy, suitable for aviation and automotive precision castings.
Grinding & Polishing Materials
High purity and uniform hardness, used for precision grinding of optical glass, semiconductors and sapphires.
Product Parameters
|
Bimodal Activated Calcined α-Alumina NA-300 |
|||||||
|
Item |
Chemical Composition |
Physical Properties |
|||||
|
AI2O3(%) |
Na2O(%) |
SiO2(%) |
Fe2O3(%) |
α-AI2O3(%) |
Median Diameter [D50] |
Specific Surface Area [m2/g] |
|
|
≥99.7 |
≤0.15 |
≤0.05 |
≤0.02 |
94 |
2.5-3.0 |
2.4-3.2 |
|
Packaging Specifications
|
Packaging Type |
Configuration |
Total Weight |
Notes |
|
Small Bag |
25 kg per PVC bag |
25 kg |
Standard retail/semi-bulk pack |
|
Jumbo Bag (Loose) |
1 MT per bulk bag |
1,000 kg |
Loose filling for cost efficiency |
|
Jumbo Bag (Palletized) |
25 kg × 40 bags per bulk bag |
1,000 kg |
Bags secured inside a ton bag |
|
Palletized Bulk |
1 MT bulk bag on pallet |
1,000 kg |
Enhanced stability for shipping |
|
Custom Solution |
Tailored to requirements |
Variable |
Available upon request |
Why choose us?
Our company has obtained ISO9001 quality management system certification, possesses independent intellectual property rights, and has production processes with national invention patents. The company has a considerable production scale, and its overall production capacity ranks among the top in the industry, capable of meeting large-scale order demands.
FAQ
Q: Are you a manufacturer or a trading company?
A: We are a physical manufacturing enterprise that has been deeply involved in the industry for 22 years.We produce all products directly without intermediaries, ensuring the best prices and reliable lead times for you.
Q: Can we get samples before placing an order?
A: We provide free samples for testing.
Q: What indicators are tested during quality inspection of alumina products?
A: Main indicators include purity, density, strength, dimensional accuracy, appearance, water absorption and temperature resistance, which are inspected item by item according to drawings and requirements.
Q: How long is the production cycle for custom-made alumina products with special specifications?
A: Generally 15–30 days. For complex structures or special processes, the delivery time shall be subject to final confirmation.
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