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Silica brick
Product Description
SiO2 content: Above 95%. Al2O3 content: Below 1.0%. Usage: Hot-blast stove. Our factory product various kinds of refractory products. The products can be made according with the customers' requirement. 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 .
Silica brick for glass furnace | |||||
Item: | GF-96A | GF-96B | GF-95A | GF-95B | |
SiO 2 | ≥96 | ≥96 | ≥95 | ≥95 | |
Fe 2 O 3 | ≤0.8 | ≤1.0 | ≤1.2 | ≤1.2 | |
Apparent porosity % | ≤22(24) | ||||
Cold Crushing Strength MPa | Brick below20KG | ≥35(30) | |||
Brick ≥20KG | ≥30(25) | ||||
Refractoriness under load ºC | ≥1680 | ≥1670 | ≥1660 | ≥1650 | |
True density g/cm ³ | ≤2.34 | ≤2.34 | ≤2.35 | ≤2.35 | |
Silica brick for coke oven | ||
Item: | CO-94A | CO-94B |
SiO2: % | ≥94 | ≥94 |
Al 2 O 3 : % | ≤ 1.5 | ≤ 1.5 |
Fe2O3: % | ≤ 1.5 | ≤ 1.5 |
Refractoriness under load 0.2Mpa | ≥ 1650ºC | ≥ 1650ºC |
Apparent porosity: % | ≤ 22 | ≤ 24 |
Bulk density: g/cm ³ | ≤ 2.34 | ≤ 2.35 |
Cold crushing strength: MPa | ≥30 | ≥25 |
Permanent linear change % (1450ºC ×2h) | 0~0.2 | 0~0.2 |
Thermal expansion(1000ºC) | ≤1.28 | ≤1.30 |
Silica brick for hot blast furnace | |
Item | HBF-95 |
SiO2 | ≥ 95 |
Al2O3 | ≤ 1.0 |
Fe2O3 | ≤1.3 |
Apparent porosity % | ≤22(24) |
Cold crushing strength MPa | ≥45(35) |
Remaining quarts % | ≤1.0 |
Refractoriness under load ºC | ≥1650 |
Creep(0.2Mpa ×1550ºC×50h) % | ≤0.8 |
Thermal expansion coefficient (1000ºC) % | ≤1.25 |
Apparent density g/cm ³ | ≤2.32 |