
Silica brick
Other name: Dinas brick
Model Number: HCR 96A,HCR 96B,HCR 95A,HCR 95B
Certification: ISO 9001-14001
Minimum Order Quantity: 5 MT
Silica brick
Description:
Silica brick is a refractory brick containing SiO2 as a main component. Its SiO2 content is generally not less than 93%. Silica brick is an acidic refractory material. It has strong resistance to acid slag and good resistance to oxides such as CaO, FeO and Fe2O3. However, it has poor resistance to alkaline slag erosion and is easily oxidized by Al2O3, K2O and Na2O. The refractoriness under load of the silicon brick is as high as 1640~1680°C, and the volume is stable under high temperature.
Advantages:
Strong resistance to acid slag, high refractoriness under load,good volume stability at high temperatures,good resistance to thermal shock
Application:
Coke oven,soaking furnace,glass melting kiln,hot blast stove, ceramic kiln
Silica brick physical and chemical
| Chemical Composition (%) | HCR 96A | HCR 96B | HCR 95A | HCR 95B | |
| SiO2 | ≥96 | ≥96 | ≥95 | ≥95 | |
| Fe2O3 | ≤0.8 | ≤1.0 | ≤1.2 | ≤1.2 | |
| Physical characters | |||||
| True density (g/cm3 ) | 2.34 | 2.35 | |||
| Apparent porosity (%) | 22 (24) | ||||
| Cold crushing strength (Mpa) Brick Weight<20Kg Brick Weight ≥20Kg | |||||
| 35 (30) | |||||
| 30 (25) | |||||
| Refractoriness under load (0.2MPa) | 1680 ℃ | 1670 ℃ | 1660 ℃ | 1650 ℃ | |