White Fused Alumina
High purity fused alumina for coated abrasives, bonded abrasives, blasting, precision lapping and refractory applications.
| Al2O3 | >= 99.4% |
| Na2O | <= 0.28% |
| Fe2O3 | <= 0.03% |
| SiO2 | <= 0.05% |
Abrasive and refractory materials from China
Industrial materials built for demanding production environments.
Zhengsha Abrasives supplies white fused alumina, fused mullite and alumina hollow spheres for global abrasive, ceramic and refractory manufacturers.
China originWhite alumina material focusFactory proof
3Core material families
FEPAGrit and powder standards
99%High purity alumina options
GlobalB2B inquiry support
Materials
White materials, furnace heat and Chinese manufacturing craft.
The visual direction now connects the whiteness of alumina materials with a restrained Zhengsha red. It keeps the website alive while staying credible for industrial purchasing teams.
Fused Mullite
Stable fused mullite material for high temperature refractory systems and kiln furniture applications.
| Al2O3 | 74-79% |
| Fe2O3 | <= 0.1% |
| SiO2 | <= 0.20% |
| Key Features | Low creep rate, high refractoriness |
Alumina Hollow Spheres
Lightweight high alumina insulating aggregate for ultra high temperature refractory insulation.
| Al2O3 | >= 99% |
| Na2O | <= 0.3% |
| Fe2O3 | <= 0.1% |
| SiO2 | <= 0.3% |
White Fused Alumina
High purity white alumina for precision grinding and refractory systems.
White Fused Alumina, internationally known as WFA, is produced from high quality industrial alumina powder by electric arc furnace melting, cooling, crushing, shaping, magnetic separation and sieving.
Its main mineral phase is alpha-Al2O3. The material is valued for high purity, white appearance, hardness, self-sharpening behavior and chemical stability in demanding industrial environments.
Performance
Material advantages that buyers can evaluate quickly.
Key technical information is organized into concise modules so overseas visitors can understand purity, hardness, self-sharpening behavior and thermal stability quickly.
High purity
Al2O3 content is typically above 99.4%, helping reduce contamination risk in precision grinding and refractory use.
Extreme hardness
Mohs hardness around 9.0 gives strong cutting ability, wear resistance and stable abrasive performance.
Self-sharpening grain
Angular crystals fracture during use to expose new cutting edges and maintain efficient grinding.
Thermal stability
High melting point and stable alpha-Al2O3 phase make WFA suitable for advanced refractory systems.
Specifications
From section sand to micro powder.
Clear size ranges and application notes help buyers match materials with their production process.
F GritF4-F220
Bonded abrasives including vitrified grinding wheels and resin cutting discs.
P GritP16-P1200
Coated abrasives including sandpaper, sanding cloth and sanding belts.
Micro PowderFEPA / JIS fine powder
Precision lapping, polishing, optical glass and high-end surface finishing.
Section Sand0-1 mm, 1-3 mm, 3-5 mm
Refractory castables, sandblasting and general industrial material systems.
Factory Evidence
Real production assets, not generic stock imagery.
Furnace, equipment, product and inspection materials create a credible presentation for overseas buyers, platform review and long-term search visibility.
Production Process
A controlled journey from alumina powder to finished material.
The process overview helps buyers understand where material stability comes from and reinforces the website's industrial credibility.
- Ingredient preparation with high-purity industrial alumina powder
- Electric arc furnace smelting at temperatures above 2200 C
- Controlled cooling and crystallization into fused alumina blocks
- Crushing, shaping and particle size classification
- Magnetic separation and precision screening
- Inspection, packaging and shipment preparation
Applications
Built for procurement teams who need technical clarity.
The website emphasizes material family, chemistry, standards, application direction and direct inquiry access to reduce buyer evaluation time.
- Bonded abrasives and vitrified grinding wheels
- Coated abrasives and precision surface finishing
- Refractory castables, bricks and kiln lining systems
- Ceramic production, kiln furniture and thermal shock resistant parts
- Sand blasting, surface preparation and anti-slip aggregate
Manufacturer positioning
Factory-led presentation for industrial trust and long-term brand building.
Specification first
Product pages are structured around chemistry, density, hardness and standards.
International ready
Language routes, hreflang, mobile layout and search-friendly structure for global buyers.
Quality
Test report from the National Abrasives and Grinding Tools Quality Inspection and Testing Center.
The website uses the inspection report material from the company presentation. It supports product credibility for overseas buyers, platform review and technical evaluation.
