Aura Stone
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We supply premium fused silica sand tailored for high-temperature industry applications, featuring high purity (99.95%-99.99%), low expansion, and high refractoriness. Ideal for kiln lining, refractory bricks, castable production, and steel/glass industry high-temperature equipment.
Specialized processing including mechanical refinement, precision screening, and deep iron removal allows for blocks, granular, and powder forms.
Mainly used for general refractory materials such as coke oven bricks and hot blast furnaces.
B Grade B: SiO2 content 99.80%-99.85%
Suitable for the building materials field, ensuring stability and durability with low impurity content.
C Grade C: SiO2 content 99.90%-99.95%
Applied to advanced industrial scenarios with strictly controlled impurities (Al2O3, Fe2O3) for excellent chemical inertness.
| Shape | Specification | Units | Remarks |
|---|---|---|---|
| Block | 0-60 | mm | Customizable cutting available |
| Granular | 8-5, 5-3, 3-1, 1-0 mm; 20-200 mesh | mm/mesh | Multi-stage screening for uniform size |
| Powder | 70-3000 mesh | mesh | Deep iron removal for purity |
| Core Properties | Key Advantages | Typical Application Scenarios |
|---|---|---|
| Near-zero thermal expansion | Dimensional stability, shock resistance | Semiconductor wafer growth, telescope lenses, aerospace nozzles |
| High thermal stability | Resistant to ≥1500℃ | Ingot casting furnaces, industrial thermocouple protection |
| High purity (SiO2≥99.95%) | Low optical loss, no contamination | Optical fiber preforms, lithography reticles |
Powder Type: Double-layer PE bag + woven bag (25kg/50kg).
Granular Type: Wear-resistant FIBC (500kg/1000kg) with lifting rings.
Block Type: Shockproof carton + pallet reinforcement.
