If you have any question, please contact us
If you have any question, please contact us
It is made of silica sand, which compose SiO2 ≥95%, a kind of acid refractory. Silica brick is widely used industrial furnace like coke oven, hot blast stove, glass furnace and etc.
It is made of silica sand, which compose SiO2 ≥95%, a kind of acid refractory. Silica brick is widely used industrial furnace like coke oven, hot blast stove, glass furnace and etc.
| Silica series | Silica dense brick | Silica checker brick | Silica brick for glass furnace | |
| Item | Unit | K | RG-95 | BG-95 |
| SiO2 | % | ≥95 | ≥95 | ≥95 |
| Al2O3 | % | ≤1.0 | ≤1.0 | ≤1.0 |
| Fe2O3 | % | ≤0.5 | ≤0.5 | ≤0.5 |
| Bulk density | g/cm3 | ≥1.80 | ≥1.78 | ≥1.85 |
| True density | g/cm3 | 2.34 | 2.34 | 2.34 |
| Apparent porosity | % | ≤22 | ≤22 | ≤20 |
| Cold crushing strength | Mpa | ≥30 | ≥30 | ≥30 |
| Residual quarze, | ℃ | ≤1.0 | ≤1.0 | ≤1.0 |
| Refractoriness under load | ≥1650 | ≥1650 | ≥1650 | |
