Silica Fire Brick Introduction
Silica fire bricks are made of tridymite, christobalite and a small amount residual quartz and glass phase. Its silica dioxide content is more than 94%, having the characteristics of resistance to acid slag erosion, high temperature, high refractoriness under load, non-deformation under the high temperature for long time, but the heat stability low.
Silica Fire Brick Properties
- Resistance to acid slag erision
- High temperature
- High refractoriness under load
- Non-deformation under the high temperature for long time
- Good integrity with furnace lining
Silica Fire Brick Physical and Chemical Index
| Silica Refractory Brick | |||||
| Item/Index | QG-0.8 | QG-1.0 | QG-1.1 | QG-1.15 | QG-1.2 |
| SiO2 % | ≥88 | ≥91 | ≥91 | ≥91 | ≥91 |
| Bulk Density g/cm3 | ≤0.85 | ≤1.00 | ≤1.10 | ≤1.15 | ≤1.20 |
| Cold Crushing Strength Mpa | ≥1.0 | ≥2.0 | ≥3.0 | ≥5.0 | ≥5.0 |
| 0.2Mpa Refractoriness Under Load T0.6℃ | ≥1400 | ≥1420 | ≥1460 | ≥1500 | ≥1520 |
| Permanent Linear Change On Reheating % 1450℃*2h | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 | 0~+0.5 |
| 20~1000℃ Thermal Expansion 10~6/℃ | 1.3 | 1.3 | 1.3 | 1.3 | 1.3 |
| Thermal Conductivity (w/m*k) 350℃ | 0.55 | 0.55 | 0.6 | 0.65 | 0.7 |
Silica Fire Brick Application
- Metallurgy industry furnace
- Heat treatment furnace.
- Chemical industry and construction industry furnace
- Furnace of incineration of garbage, recirculating fluidized bed furnace.
Silica Fire Brick Manufacturer
RS refractory manufacturer is specialized in producing various refractory materials, such as silica bricks, high alumina bricks, mullite bricks. We have got good reputation worldwide. Our refractory products are mainly covers metallurgy, steel, chemical industry, building materials, thermal power and other industrial fields. If you have purchase plan for refractory bricks, contact with us!
