Silica brick is made of quartz stone material, the content of SiO2 is above 93%. It is of good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°C, RUL is beyond 1620°C.
Advantage:
- Good thermal conductivity.
- High refractoriness under load.
- Good creep resistance.
- High refractoriness.
Application:
Silica brick can be widely used in coke oven, hot blast furnace, glass furnace and carbon furnace.
| Silica Brick | GZ-95 | GZ-94 | GZ-93 |
| SiO2 | ≥95 | ≥94 | ≥93 |
| Refractoriness, ℃ | 1710 | 1710 | 1690 |
| Apparent Porosity, ％ | ≤22 | ≤23 | ≤25 |
| Bulk Density, g/cm3 | ≥1.8 | ≥1.8 | ≥1.8 |
| True Density, g/cm3 | ≤2.34 | ≤2.34 | ≤2.34 |
| Cold Crushing Strength, Mpa | ≥35 | ≥35 | ≥35 |
| 0.2Mpa Refractoriness Under Load T0.6, ℃ | ≥1650 | ≥1640 | ≥1620 |
| 20－1000 ℃ Thermal Expansion, % | 1.25 | 1.25 | 1.25 |
| Thermal Conductivity at 1000 ℃ , W/m.K | 1.44 | 1.44 | 1.44 |
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