// SPEC · Refractory Raw Materials
White Fused Alumina Al2O3 99% Refractory Aggregate 0-3mm
White fused alumina Al2O3 99% refractory aggregate 0-3mm; ultra-low impurities and high refractoriness for high-purity castables, steel ladle working linings, and petrochemical furnace floors.
// Key Features
- Al2O3 ≥99% purity providing excellent chemical stability against molten steel slag attack
- High refractoriness under load (RUL >1700°C) for demanding steel and petrochemical service
- Low SiO2 and Fe2O3 minimizing contamination risk in high-purity monolithic refractory castables
- Excellent thermal shock resistance from controlled crystal structure and low open porosity
// Technical Specifications
| SiO2 (%) | ≤0.05 |
| Al2O3 (%) | ≥99.0 |
| Fe2O3 (%) | ≤0.05 |
| Available Grain Sizes | 0-0.5mm, 0-1mm, 1-3mm, 0-3mm |
| Bulk Density (g/cm³) | 1.85–1.96 |
// Applications
Steel ladle working lining castable aggregateContinuous casting tundish high-purity permanent castablePetrochemical reformer heater floor and wall castableElectric arc furnace roof delta section castableCement rotary kiln nose ring castable
// Quick Specs
Max Temperature1900°C
Thermal Conductivity6.0 W/(m·K) at 1000°C
Density3.98 g/cm³
StandardGB/T 23296
// Get Pricing
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