HUAO Customized Reactive Alumina Powder for High Performance Refractories
Product Description:
HUAO Reactive Alumina is a high-purity, ultra-fine white alpha alumina micro-powder engineered for high-performance refractory systems. Characterized by low impurity levels (Na2O ≤ 0.10%, CaO ≤ 0.03%, Fe2O3 ≤ 0.04%) and customizable particle size distributions, it serves as an essential functional matrix filler in steel ladle castables, blast furnace iron runners, porous purging plugs, seating blocks, corundum self-flowing castables, and refractory spray coatings.
By optimizing particle packing and significantly reducing mixing water demand, it enhances slurry fluidity, accelerates high-temperature sintering, and maximizes cold and hot mechanical strength, thermal shock resistance, and slag erosion protection.
Technical Parameters:
| Features/Methods | Unit | HA600 Typical | HA600 Min | HA600 Max |
| Na₂O | % | 0.08 | 0.10 | |
| Fe₂O₃ | % | 0.02 | 0.04 | |
| MgO | % | 0.05 | ||
| SiO₂ | % | 0.03 | 0.08 | |
| CaO | % | 0.02 | ||
| Surface area/BET | m²/g | 7.2 | 6.0 | 9.5 |
| D50 Cilas | μm | 0.6 | 0.4 | 0.8 |
| D90 Cilas | μm | 3.0 | 4.0 | |
| Particle distribution | singlet |
Applications:
HUAO Reactive Alumina is a critical matrix micro-powder engineered for high-performance shaped and unshaped refractories. Optimized for dense particle packing, it reduces mixing water demand and improves workability in steel ladle castables, blast furnace iron runners, porous purging plugs, seating blocks, corundum self-flowing castables, and spray coatings.
During high-temperature thermal processing, it accelerates solid-state sintering to form a tightly bonded ceramic microstructure. This delivers outstanding cold and hot mechanical strength, superior thermal shock resistance, excellent wear resistance, and reliable, long-lasting protection against aggressive molten metal and slag erosion in severe industrial furnace environments.
Customization:
HUAO offers customized reactive alumina tailored to your exact process needs. We precisely control particle size distributions (PSD) and adjust chemical purity—including ultra-low Na2O, Fe2O3, and CaO levels—ensuring optimal packing density, tailored rheology, and peak performance for your specific refractory or ceramic formulations.
Reactive Alumina is typically packaged and shipped in the following ways:
- Small quantities (less than 50lbs) are usually packaged in plastic or paper bags, and then placed in a larger, sturdy outer box for shipping.
- For larger quantities, 50lbs or more, the reactive alumina is often packaged in drums or super sacks for easier handling and transportation.
- Special packaging may be required for certain applications, such as those involving hazardous chemicals. In these cases, the reactive alumina will be packaged and shipped according to specific regulations and requirements.
When shipping reactive alumina, it is important to ensure that the packaging is properly labeled and secured to prevent any damage during transit. The product should also be stored in a dry and well-ventilated area to maintain its quality and effectiveness.
For international shipping, the product may be subject to customs regulations and may require additional documentation or labeling. It is important to consult with the shipping company and adhere to all necessary guidelines and regulations to ensure a smooth and timely delivery.
FAQ:
- Q: What is the packaging for Reactive Alumina?
A: The packaging for Reactive Alumina includes 25kgs bags, 1250kgs bags, or Jumbo bags. It can also be customized according to customer's requirement. - Q: What are the payment terms for Reactive Alumina?
A: The payment terms for Reactive Alumina are 100% in advance or 30% TT in advance with balance payment beforeee delivery. - Q: Can I request a specific packaging size for Reactive Alumina?
A: Yes, we offer customized packaging options for Reactive Alumina to meet customer's specific requirement. - Q: What is the lead time for delivery of Reactive Alumina?
A: The lead time for delivery of Reactive Alumina is usually 10-15 days after receiving the payment. - Q: Is Reactive Alumina safe to handle?
A: Yes, Reactive Alumina is safe to handle. However, it is recommended to use gloves and safety goggles when handling the product.
Get in Touch
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