White Fused Alumina Abrasive Powder
White fused alumina powder is used in refractory applications. This abrasive material is suitable for use in bonded abrasives, coated abrasives, and loose abrasive processes.
Technical Specifications
Product Overview
High-Purity White Fused Alumina
White Fused Alumina, also known as white corundum, is manufactured from high-quality alumina melted at temperatures exceeding 2000°C in an electric arc furnace. With a primary crystal phase of alpha-Al2O3, this material provides exceptional hardness and thermal stability. It is a chemically inert abrasive ideal for high-precision industrial applications including refractories, grinding, and surface finishing.
Chemical Composition
Chemical Analysis
| Component | Section Sand (Min/Max) | Fine/Macro Powder (Min/Max) |
|---|---|---|
| Al2O3 | 99.5% min | 99.0% min |
| Fe2O3 | 0.04% max | 0.20% max |
| Na2O | 0.30% max | 0.40% max |
| SiO2 | 0.02% max | 0.05% max |
Physical Properties
Key Physical Metrics
9
Mohs Hardness
3.95 g/cm3
Specific Gravity
- Bulk Density
- 1.75-1.95 g/cm3
Available Grits and Sizes
Section Sand Sizes
- 12-6mm
- 10-8mm
- 8-5mm
- 6-3mm
- 5-3mm
- 3-1mm
- 1-0mm
- 1-0.5mm
- 0.5-0.2mm
- 0.5-0mm
- 0.3-0mm
Macro Powder Sizes
- 60mesh-0
- 80mesh-0
- 100mesh-0
- 120mesh-0
- 150mesh-0
- 200mesh-0
- 325mesh-0
Applications
- Typical Applications
- RefractoryFurnace BurdenCastableRamming CompoundPaintingPrecision GrindingPolishing
