White Fused Alumina
- High-purity alumina (Al₂O₃) with minimal iron oxide content.
- Color: White
- Hardness: 9 on the Mohs scale
- Melting Point: Approximately 2,000°C (3,632°F)
- Packaging: Typically packaged in 25kg or 50kg sacks, bulk bags, or drums. Custom packaging available.
Product Introduction
White Corundum, also known as White Fused Alumina, is a high-purity abrasive material made from alumina (Al₂O₃) with minimal iron content. It is characterized by its white color, hardness of 9 on the Mohs scale, and excellent thermal stability with a melting point of around 2,000°C. White Corundum is widely used in abrasives, grinding wheels, polishing, and refractory applications, offering superior performance in high-purity and precision tasks. It is available in various grades and particle sizes to suit different industrial needs.
Main Products Type
White Corundum Powder
Form: Fine powder Application: Ideal for polishing, precision lapping, and high-purity applications requiring smooth finishes and minimal contamination.
White Corundum Grit
Form: Medium to coarse grains Application: Used in abrasives, grinding wheels, sandblasting, and surface preparation, providing high hardness and durability.
White Tabular Alumina
Form: Coarse, block-like grains Application: Used in refractory materials, kiln linings, and high-temperature applications due to its excellent thermal stability.
Product Specification
| Grain Size WFA | Component | Required by GB Standard | Typical Value of Our Product |
|---|---|---|---|
| #4 – #80 | Al₂O₃ | ≥ 99.10% | 0.9965 |
| Na₂O | ≤ 0.35% | 0.0022 | |
| Fe₂O₃ | – | 0.0003 | |
| SiO₂ | – | 0.0003 | |
| #90 – #150 | Al₂O₃ | ≥ 99.10% | 0.9935 |
| Na₂O | ≤ 0.40% | 0.003 | |
| Fe₂O₃ | – | 0.0004 | |
| SiO₂ | – | 0.0005 | |
| #180 – #220 | Al₂O₃ | ≥ 98.60% | 0.992 |
| Na₂O | ≤ 0.50% | 0.0036 | |
| Fe₂O₃ | – | 0.0005 | |
| SiO₂ | – | 0.0008 |
| Size | Na₂O (%) | Magnetic Material (%) | SiO₂ (%) |
|---|---|---|---|
| 180#-0 | ≥99 | ≤0.4 | ≤0.1 |
| 200#-0 | ≥99 | ≤0.4 | ≤0.1 |
| 320#-0 | ≥99 | ≤0.4 | ≤0.1 |
| 0-1 mm | ≥99 | ≤0.4 | ≤0.1 |
| 1-3 mm | ≥99 | ≤0.4 | ≤0.1 |
| 3-5 mm | ≥99 | ≤0.4 | ≤0.1 |
| 5-8 mm | ≥99 | ≤0.4 | ≤0.1 |
| 8-12 mm | ≥99 | ≤0.4 | ≤0.1 |
Product Application
- Abrasive Industry: Used in manufacturing grinding wheels, sandpapers, and polishing tools for metalworking, ceramics, and woodworking.
- Refractory Industry: Applied in the production of high-temperature furnaces, kiln linings, and crucibles, offering excellent heat resistance.
- Electronics: Used in polishing semiconductor wafers and precision components, due to its high purity and fine finish.
- Automotive Industry: Utilized for brake pads, clutch discs, and other wear-resistant parts.
- Construction and Metalworking: Used in sandblasting, surface cleaning, and conditioning of metals and concrete.
- Coatings: Employed in high-performance coatings that require excellent durability and wear resistance.
Quality Certificate
Our White Fused Alumina products are certified to meet international quality standards, ensuring superior performance and reliability. We hold certifications such as ISO 9001 for quality management, demonstrating our commitment to continuous improvement in manufacturing processes. Our products also comply with industry-specific standards, including ASTM and JIS, ensuring they meet the stringent requirements of sectors like aerospace, automotive, and electronics. Additionally, our materials undergo rigorous testing and are inspected for quality assurance by recognized third-party agencies such as SGS, guaranteeing that all products meet the highest global standards.
Transaction Process
Packaging Standards
- Bulk Bags：500kg to 1,000kg for large quantities.
- Sacks: 25kg or 50kg sacks for smaller orders.
- Drums/Containers: For powder form or specialized needs.
We can also produce according to your requirement.
The machine is automatically packed and filtered by a screen, so that no debris is mixed in.
Service Commitment
Quality Assurance: We guarantee all our products meet international standards, with strict quality control processes in place.
Timely Delivery: We commit to on-time delivery, ensuring that your orders arrive as scheduled, anywhere in the world.
Customer Support: Our expert team is available for pre-sales consultation, technical advice, and after-sales support to ensure your satisfaction.Customization: We offer tailored solutions to meet your specific needs, from product specifications to packaging.
Competitive Pricing: We provide high-quality products at competitive prices, ensuring excellent value for your investment.
Sustainability: We are committed to environmentally responsible practices in manufacturing and packaging, ensuring a sustainable future.
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