Low Water Demand Reactive Alumina Micro Powder Al2O3 For Refractory Castables
Product Description:
Reactive Alumina is a premium alpha-phase alumina micro-powder specifically developed to elevate unshaped refractories and advanced ceramics. Its controlled particle size distribution optimizes matrix packing density, drastically reducing mixing liquid requirements in castable systems.
When integrated into high-temperature formulations—such as steel ladle linings, blast furnace iron runners, porous purging plugs, seating blocks, and corundum self-flowing castables—it accelerates solid-state sintering. This structural densification significantly enhances cold and hot mechanical strength, thermal shock endurance, and resistance to molten slag penetration, ensuring maximum equipment lifespan and operational stability in demanding metallurgical environments.
Technical Parameters:
| Features/Methods | Unit | HA500 Typical | HA500 Min | HA500 Max |
|---|---|---|---|---|
| Na₂O | % | 0.08 | 0.10 | |
| Fe₂O₃ | % | 0.02 | 0.03 | |
| MgO | % | 0.07 | 0.05 | 0.10 |
| SiO₂ | % | 0.03 | 0.07 | |
| CaO | % | 0.02 | 0.03 | |
| Surface area/BET | m²/g | 7.5 | 6.5 | 8.5 |
| D50 Cilas | μm | 0.5 | 0.3 | 0.6 |
| D90 Cilas | μm | 2.0 | 3.0 | |
| Particle distribution | / | singlet |
Applications:
HUAO Reactive Alumina is a premium alpha-phase alumina micro-powder engineered to advance high-temperature refractories and technical ceramics. With its ultra-fine, tailored particle size distribution, it effectively fills micro-interstitials between aggregate grains to optimize particle packing density and minimize mixing liquid demand in castable formulations.
In demanding metallurgical applications—such as steel ladle linings, blast furnace iron runners, porous purging plugs, seating blocks, and corundum self-flowing castables—it accelerates solid-state sintering. This structural densification significantly boosts mechanical strength, thermal shock endurance, and resistance to molten slag penetration, ensuring maximum lining service life.
Customization:
HUAO Reactive Alumina (Zibo, Shandong) is an ISO9001, ISO14001, and ISO45001 certified raw material engineered for high-performance refractories and technical ceramics. Featuring high alpha-phase purity, tailored particle sizing, and superior sintering reactivity, it optimizes particle packing density while reducing water demand.
We offer full customization tailored to your production specifications, including particle size distributions, custom blending, and flexible packaging options (25kg bags, 1,250kg bulk bags, or Jumbo BB bags). Flexible payment terms are available, including 100% advance or 30% TT advance with balance before delivery.
FAQ:
Q1: What is the brand name of the Reactive Alumina product?
A1: The brand name of the Reactive Alumina product is HUAO.
Q2: Where is the Reactive Alumina manufactured?
A2: The Reactive Alumina is manufactured in Zibo, Shandong.
Q3: Does the Reactive Alumina product have any certifications?
A3: Yes, the product is certified with ISO9001, ISO14001, and ISO45001.
Q4: What are the packaging options available for Reactive Alumina?
A4: The product is available in packaging sizes of 25kgs, 1250kgs, Jumbo (BB), or as per the customer's requirements.
Q5: What are the payment terms for purchasing Reactive Alumina from HUAO?
A5: The payment terms are 100% in advance or 30% TT in advance with the balance payment beforeee delivery.
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