1. What is White Fused Alumina?
White Fused Alumina (WFA), also referred to as white aluminum oxide, is a high-purity synthetic abrasive material produced by melting calcined alumina in an electric arc furnace at temperatures exceeding 2000°C. It is characterized by exceptional hardness, high thermal resistance, and iron-free composition, making it ideal for precision grinding, sandblasting, and refractory applications.
2. Key Features of White Fused Alumina
- Al₂O₃ content ≥99.5%
- High Mohs hardness (9.0)
- Excellent thermal and chemical stability
- Free from iron and other impurities
- Sharp, angular grains ideal for cutting and grinding
- Available in various sizes: F4–F240, P12–P400, and powders
3. White Fused Alumina Density
The typical bulk density of white fused alumina ranges from 1.75 to 1.95 g/cm³, while the true density is approximately 3.95 to 4.00 g/cm³. These density values are essential in applications requiring high material stability, such as in refractories and high-performance abrasives.
4. Technical Specifications
| Product Name | White Fused Alumina |
| Appearance | White |
| Hardness | 10.0 Mohs |
| Al2O3 | ≥99.4% |
| True Density | 3.95~4.0 g/cm3 |
| Bulk Density | 1.53~1.99 g/cm3 |
| Melting Point | 2250℃ |
| Max Service Temperature | 1900℃ |
5. Applications of White Fused Alumina
Abrasives Industry
- Grinding wheels and bonded abrasives
- Coated abrasives like sandpaper
- Precision polishing and finishing
Refractories
- High-alumina bricks and castables
- Kiln furniture and furnace linings
Blasting & Surface Treatment
- Sandblasting stainless steel, aluminum, and glass
- Etching and shot peening
Electronics & Ceramics
- Electronic substrates
- Advanced ceramics and insulators
6. Why Choose BANLANCHEM for White Fused Alumina
- Certified high-purity white fused alumina supplier
- Competitive pricing and fast delivery
- OEM packaging and custom grain sizing available
- Technical support and free samples
- Compliance with ISO 9001, REACH, and RoHS
7. Packaging & Storage
- Standard: 25kg woven bags, 1000kg jumbo bags
- Custom packaging: Available upon request
- Storage: Keep in a dry and ventilated area, away from moisture
8. Certifications
- ISO 9001 Quality Management System
- COA, MSDS, REACH & RoHS compliance
9. FAQ - White Fused Alumina
Q1: How does white fused alumina differ from brown fused alumina?
A1: White fused alumina is purer, harder, and contains no iron, making it better for precision and stainless steel processing.
Q2: Can I get a customized grain size or powder version?
A2: Yes, we offer customized particle sizes including micro-powders.
Q3: Do you offer samples?
A3: Absolutely. Request your free sample via our contact form.
10. Contact Us for White Fused Alumina Price
Looking for a trusted white fused alumina supplier with consistent quality and competitive pricing? Contact BANLANCHEM today for more information and pricing.Get a Free Quote
Last updated: July 2025
