| Place of Origin |
China (Mainland) |
| SiO2 Content (%) |
>94% |
| Al2O3 Content (%) |
<0.6% |
| MgO Content (%) |
<0.1% |
| CaO Content (%) |
<3.3% |
| Shape |
Brick |
Silica Refractory Bricks Chemical & Phisical properties: SiO2: ≥96% Fe2O3: ≤0.7% CaO: ≤2.2% K2O+Na2O: ≤0.11% Al2O3+2 (K2O+Na2O): ≤0.5% Refractoriness: ≥1710oC softening temp. 0.2 Mpa: ≥1685oC Apparent Porosity: : ≤21% Cold Crushing Strength:≥35Mpa True Density: : ≤2.33 g/cm3