// SPEC · Refractory Bricks
Fused Silica Brick SiO2 99%
Fused Silica Brick SiO2 99% with ultra-low thermal expansion and outstanding thermal shock resistance. Ideal for glass furnace checker work, precision investment casting molds, and semiconductor kiln furniture.
// Key Features
- Ultra-low coefficient of thermal expansion (CTE ~0.5×10⁻⁶/°C)
- Excellent thermal shock resistance for rapid heating and cooling cycles
- High-purity amorphous SiO2 with minimal contamination risk
- Precise dimensional stability for close-tolerance structural applications
// Technical Specifications
| SiO2 (%) | ≥99.0 |
| Al2O3 (%) | ≤0.2 |
| Apparent Porosity (%) | ≤18 |
| True Density (g/cm³) | ≤2.22 |
| Cold Crushing Strength (MPa) | ≥25 |
// Applications
Glass furnace checker brick liningInvestment casting mold support structureSemiconductor diffusion furnace tube liningOptical glass melting furnace contact zoneContinuous casting tundish impact pad component
// Quick Specs
Max Temperature1250°C
Thermal Conductivity1.55 W/(m·K) at 600°C
Density2.21 g/cm³
StandardGB/T 10325
// Get Pricing
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