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High Purity Calcined Alumina Powder (99.0-99.4% Al2O3) for Ceramic Rollers Tunnel Kilns Datong Brand Henan High Refractoriness
- WhatsApp: +86 13781152999
- E-mail: [email protected]
- Parameter
- Related products
Parameter
Our AW series calcined α-Al₂O₃ micropowder is produced by calcining industrial aluminum hydroxide or industrial alumina at appropriate temperatures to form crystallographically stable α-alumina products. This micropowder is then manufactured through ball milling using the calcined α-alumina as raw material. Calcined alumina powder is commonly used in shaped refractories such as skid plates, three major components, and corundum bricks, or blended with activated alumina and silica fume for use in unshaped refractories.
When producing resin-bonded products with calcined alumina powder, its low moisture content facilitates uniform mixing and ensures high volume stability. When blended with activated alumina powder or silica fume for unshaped refractories, it forms a particle size distribution with finer powders to achieve densest packing. This reduces water addition and porosity, minimizes linear change rate, and enhances strength.
Minimum order quantity: 1 ton.
Specifications
Physical and Chemical Properties of Calcined Alumina Powder
| Grade | AW-800FG | AW-9FG | AW-4M | |||
| Ingredients | Warranted | Typical | Warranted | Typical | Warranted | Typical |
| AL2O3（%） | ≥99 | 99.7 | ≥99 | 99.6 | ≥99 | 99.5 |
| SiO2（%） | ≤0.15 | 0.03 | ≤0.15 | 0.08 | ≤0.15 | 0.10 |
| Fe2O3（%） | ≤0.10 | 0.03 | ≤0.10 | 0.06 | ≤0.10 | 0.06 |
| Na2O（%） | ≤0.20 | 0.12 | ≤0.30 | 0.18 | ≤0.30 | 0.28 |
| D50（μm） | 2.5~5 | 3.5 | 2~7 | 5.0 | 3~5 | 4.3 |
| Particle Distribution | Mono-modal | Mono-modal | Mono-modal | |||
| Inspection Standards | GB/T3044-89；GB3604-83 | |||||
| Packaging | 25KG/small bag,1000KG/jumbo bag(can be customized according to customer requirements) | |||||
Applications
Ceramics and refractory materials, Abrasives and Polishing，Electronics and Semiconductors, Catalyst and Catalyst Carrier,Composite material enhancer
Advantages
The calcined alumina powder produced by our company features high sintering temperature, high α-phase conversion rate, low impurity content, large primary grain size, excellent volume stability at high temperatures, and resistance to erosion and scouring.
Note:
Particle size can also be processed according to customer requirements.
For any other special performance requirements, please contact us for customized production.
Note: For further information, please contact our relevant personnel.
FAQ
1. Can I get free samples?
Yes, free samples 1-2 kg.
Please advise your contact details.
( Like your company name, address, phone No. etc.)
We will arrange sample immediately, you will get it within 5 days.
2. What's your payment terms?
30% deposit in advance, 70% balance to be paid against the B/L copy.
3. What's your delivery time?
Production time: 15-25 days after deposit payment received.
4. Are you manufacturer or trade company?
We are manufacturer, the factory is located in Kaifeng, Henan Province, China.
Welcome to visit our company any time.
5. Why choose Datong?
Your order production will be under strict control to ensure the products quality
Professional producing process and strict QC team
Reasonable price
Shipment on time
We are experienced in refractory export. We already export refractories to Japan, Korea, India Netherlands, Bangladesh, Sri Lanka, Myanmar, Vietnam and so on.
