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Silica Brick Description
High quality silica a brick is made of silicon raw material, the content of SiO2 is above 95%. And the content of Al2O3 is below 1.0%. Our factory produces various kinds of refractory products. The products can be made according with the customers' requirement.
Silica Brick Advantage:
1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point with temperature.
4) No shrink in burn repeatedly.
5) Temperature of refractoriness under load is above 1650º C
Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.
Application of silica brick:
They are widely used for hot blast furnace, coke oven, and glass furnace. The products can be made according to customers' requirement.
Silica Bricks specification:
| Coke Oven Silica Brick | Glass Furnace Silica Brick | Hot Blast Stove Silica Brick | |
JJG-94 | JBG-95 | JBG-96 | JRG-95 | |
SiO2 % | 94.5 | ≥95 | ≥96 | 95 |
Fe2O3 % | 1.5 | ≤1.0 | ≤1.0 | 1.3 |
CaO % | 2.5 | 2.2 | 2.2 | 2.2 |
Refractoriness °C | 1790 | 1790 | 1790 | 1790 |
Refractoriness under load T1,°C | 1650 | 1650 | 1660 | 1650 |
Apparent porosity % | 22(24) | 22(24) | 22(24) | 22(24) |
Cold crushing strength Mpa | 40(35) | 35(30) | 35(30) | 35(30) |
True Density g/cm3 | 2.33 | 2.32 | 2.33 | 2.34 |
Thermal Expansion % | 1000°C 1.28(1.30) | 1000°C ≤1.25 | 1000°C ≤1.25 | 1000°C 1.26 |
Residual Quartz % | 1.0 | 1.0 | 1.0 | 1.0 |
