Zibo Huao New Materials Co., Ltd.
| Delivery Time | Normally 15 days |
| Density (g/cm³) | ≥ 3.90 |
| Al₂O₃ (%) | ≥ 99.3 |
| Color | White |
| SiO₂ (%) | ≤ 0.02 |
| LOI (%) | ≤ 0.1 |
| 325 Mesh Residue | ≤ 1% |
| α-Al₂O₃ (%) | ≥ 93 |
| Packaging Details | 25kg/ 50kg/ 1000kg/ 1250kg/Jumbo(BB); Or As Customer's Requirement |
| Particle Size D50 (μm) | 4–5 |
| Na₂O (%) | ≤ 0.40 |
| Fe₂O₃ (%) | ≤ 0.02 |
| Brand Name | HUAO |
| Model Number | Calcined Alumina |
| Certification | ISO9001, ISO14001, ISO45001 |
| Place of Origin | Shandong, China |
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Product Specification
| Delivery Time | Normally 15 days | Density (g/cm³) | ≥ 3.90 |
| Al₂O₃ (%) | ≥ 99.3 | Color | White |
| SiO₂ (%) | ≤ 0.02 | LOI (%) | ≤ 0.1 |
| 325 Mesh Residue | ≤ 1% | α-Al₂O₃ (%) | ≥ 93 |
| Packaging Details | 25kg/ 50kg/ 1000kg/ 1250kg/Jumbo(BB); Or As Customer's Requirement | Particle Size D50 (μm) | 4–5 |
| Na₂O (%) | ≤ 0.40 | Fe₂O₃ (%) | ≤ 0.02 |
| Brand Name | HUAO | Model Number | Calcined Alumina |
| Certification | ISO9001, ISO14001, ISO45001 | Place of Origin | Shandong, China |
| High Light | High-Purity Calcined Alumina Powder ，Calcined Alumina Powder with α-Al₂O₃ ，High Density Calcined Alumina Powder | ||
HUAO Calcined Alumina is manufactured from low-sodium calcined alumina raw material through precision grinding and deep processing techniques. Produced in our manufacturing facility, HA-1 and HA-2 deliver high α-phase conversion, high physical density, and minimal trace chemical impurities. Featuring a high melting point, high thermal conductivity, and outstanding electrical resistivity, HUAO Calcined Alumina serves as a vital functional material for global B2B clients in advanced technical ceramics, refractory linings, electronics, and precision polishing compounds.
| Item | Al₂O₃ (%) | SiO₂ (%) | Na₂O (%) | Fe₂O₃ (%) | LOI (%) | α-Al₂O₃ (%) | Density (g/cm³) | Particle Size D50 (μm) | 325 Mesh Residue |
|---|---|---|---|---|---|---|---|---|---|
| HA-1 | ≥ 99.3 | ≤ 0.02 | ≤ 0.40 | ≤ 0.02 | ≤ 0.1 | ≥ 93 | ≥ 3.90 | 4-5 | ≤ 1% |
| HA-2 | ≥ 99.6 | ≤ 0.01 | ≤ 0.15 | ≤ 0.02 | ≤ 0.1 | ≥ 94 | ≥ 3.94 | 4-5 | ≤ 1% |
Particle size can be customized according to customers' specific requirements.
Extensively used in manufacturing architectural ceramics, structural ceramics, and wear-resistant components requiring high mechanical strength and erosion resistance.
Applied in high-insulation electronic parts and substrates due to its low soda content, high electrical resistivity, and efficient thermal dissipation.
Acts as a fine reactive filler in high-alumina bricks, unshaped monolithics, and refractory matrix formulations needing thermal volume stability.
Used as a high-hardness abrasive medium in polishing compounds, metal finishing slurries, and specialized wear coatings.
Certified Quality Assurance: Produced under strict ISO 9001, ISO 14001, and ISO 45001 management systems, HUAO tests every production lot for chemical purity, crystal conversion, and grain size distribution.
Deep Processing Capabilities: Our fine milling and deep processing lines allow precise control over particle morphology and sizing, ensuring seamless batch integration into customer production lines.
Direct Factory Exporter: As an integrated manufacturing and trading supplier, HUAO guarantees reliable bulk volume delivery, direct cost savings, and secure international export packaging.
HUAO provides tailored particle size adjustments to align with your exact pressing, casting, or polishing requirements. Packaging options include moisture-proof 25kg multi-layer bags and 1000kg/1200kg jumbo bulk bags with inner polyethylene liners, fully palletized and shrink-wrapped for maritime transport.
HA-2 offers higher chemical purity (Al₂O₃ ≥ 99.6%), lower soda content (Na₂O ≤ 0.15%), higher alpha-phase content (α-Al₂O₃ ≥ 94%), and higher density (≥ 3.94 g/cm³) compared to HA-1, making it ideal for high-spec electronic ceramics and high-purity applications.
Yes, while our standard D50 median size is 4-5 μm, particle sizes can be prepared and fine-milled according to specific customer requirements.
Low Na₂O content improves electrical resistivity and dielectrics in electronic components while raising high-temperature refractoriness and sintering performance.
We also provide other alumina products. If you would like to learn more about Reactive Alumina, please click here.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2016
Employee Number:
6~400
Ecer Certification：
Verified Supplier
ZIBO HUAO NEW MATERIALS CO., LTD is a professional manufacturer and supplier of high-performance alumina ceramic products and refractory raw materials. With over 10 years of export experience, we act not only as a supplier, but also as the eyes of our clients to monitor prod... ZIBO HUAO NEW MATERIALS CO., LTD is a professional manufacturer and supplier of high-performance alumina ceramic products and refractory raw materials. With over 10 years of export experience, we act not only as a supplier, but also as the eyes of our clients to monitor prod...
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