Product Description:
Reactive Alumina Powder is a high-performance material designed for advanced refractories and technical ceramics. Featuring a uniform sub-micron particle distribution and excellent sintering reactivity, it serves as a critical matrix component in ladle castables, iron runner castables, purging plugs, seating blocks, corundum self-flowing castables, and spray coatings.
By filling micro-voids between aggregate particles and optimizing particle packing, Reactive Alumina reduces water demand in castables while drastically improving flowability, matrix density, cold and hot mechanical strength, and slag erosion resistance. It ensures superior structural durability and thermal performance in extreme high-temperature industrial applications.
Technical Parameters:
| Features/Methods |
Unit |
HA250 Typical |
HA250 Min |
HA250 Max |
| Na₂O |
% |
0.10 |
|
0.14 |
| Fe₂O₃ |
% |
0.03 |
|
0.04 |
| MgO |
% |
0.01 |
|
|
| SiO₂ |
% |
0.03 |
|
0.07 |
| CaO |
% |
0.02 |
|
|
| Surface area/BET |
m²/g |
3.0 |
2.6 |
3.4 |
| D50 Cilas |
μm |
2.5 |
1.8 |
3.0 |
| D90 Cilas |
μm |
7.0 |
5.0 |
10.0 |
| Particle distribution |
|
doublet |
|
|
Applications:
HUAO Reactive Alumina functions as an essential ultra-fine constituent in high-grade refractory formulations and advanced ceramic materials. Its primary utility lies in the fabrication of critical thermal components, including steel ladle linings, blast furnace trough castables, gas-permeable purging plugs, well blocks, self-leveling corundum masses, and protective gunning mixes.
By occupying interparticle interstitial voids, it optimizes bulk density, lowers mixing liquid requirements, and accelerates solid-state sintering. This significantly elevates mechanical integrity, thermal shock survival, and molten slag penetration resistance across heavy metallurgical and high-temperature furnace operations.
Customization:
Certified under ISO9001, ISO14001, and ISO45001, HUAO Reactive Alumina is a premium raw material engineered for advanced refractories and ceramics. It is widely used in manufacturing ladle castables, iron runner castables, purging plugs, seating blocks, corundum self-flowing castables, and spray coatings.
By filling interparticle voids, it lowers water demand, enhances sintering reactivity, and significantly boosts matrix density, mechanical strength, and slag resistance.
Customization is fully available across particle size distributions, custom blending, and flexible packaging options (25kg, 1,250kg bulk bags, or Jumbo BB bags) to suit specific client specifications and operational requirements.
FAQ:
Q1: What is the brand name of the Activated Alumina product?
A1: The Activated Alumina product is branded under the name HUAO.
Q2: Where is the Activated Alumina manufactured?
A2: The Activated Alumina is produced in Zibo, Shandong.
Q3: Does the Activated Alumina have any certifications?
A3: Yes, it is certified with ISO9001, ISO14001, and ISO45001.
Q4: What are the packaging options available for the Activated Alumina?
A4: The product is available in 25kgs bags, 1250kgs bags, Jumbo bags (BB), or packaging as per the customer's requirements.
Q5: What are the payment terms for purchasing Activated Alumina?
A5: Payment terms include 100% payment in advance or 30% TT in advance with the balance payment before delivery.
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