High Density Fire Resistant 1650C Aluminium Silicate Brick
Standard sizing:This brick is special size for pipes of industry furance ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
Definition:
Fire Resistant Silica Fire Brick is made of quartz stone material, the content of SiO2 is above 93%. It has good resistance to acid slag and good heat conductivity. And the refractoriness is 1690~1710°C, RUL is beyond 1620°C.
SiO2 has different types of crystals in different temperatures, and the transform between the crystals will cause the change of the bulk. So there is a close contact between the changes of SiO2 crystals and the produce, performance and usage of silica bricks. During the heating, there will be changes of the bulk, and cristobalite changes most, then quartz, phosphorus quartz is the slowest of all and it also has good heat-conductivity.Coke oven should use the silica brick with small true density. And the phosphorus quartz is better than others.
Advantage:
(1) Refractoriness under load:
The refractoriness under load of Fire Resistant Silica Fire Brick is higher than that of clay brick and high aluminum brick, reaching 1640 ~ 1670℃, which belongs to advanced refractory materials.
(2) Thermal conductivity:
Fire Resistant Silica Fire Brick has better thermal conductivity than clay brick and high aluminum brick
Application:
Fire Resistant Silica Fire Brick iare widely used for hot blast furnace, coke oven, and glass furnace. The products can be made according to customers' requirement.
Product Description:
| Fire Resistant Silica Fire Brick |
| Item | Unit | RG-95 | JG-1 | JG-2 |
| SiO2 | % | ≥95 | ≥94.5 | ≥94.5 |
| Al2O3 | % | ≤1.0 | ≤1.5 | ≤1.5 |
| Fe2O3 | % | ≤1.3 | ≤1.5 | ≤1.5 |
| CaO | % | - | ≤2.5 | ≤2.5 |
| Apparent Porosity | % | ≤22(24) | ≤22 | ≤24 |
| Bulk Density | g/cm3 | ≤2.32 | - | - |
| Ture Bulk Density | g/cm3 | - | ≤2.33 | ≤2.34 |
| Cold Crushing Strength | Mpa | ≥45(35) | ≥40 | ≥35 |
| Residual Quartz | % | ≤1.0 | ≤1.0 | ≤1.0 |
| Refractoriness under load, T0.6 | ℃ | ≥1650 | ≥1650 | ≥1650 |
| Creep Rate(1550℃X50h ,0.2MPa) | % | ≤0.8 | - | - |
| Thermal conductivity,1000℃ | % | ≤1.25 | ≤1.28 | ≤1.3 |
| Linear Change on Reheating(1450℃×2h) | % | - | 0~0.3 | 0~0.3 |
Packaging and shipping
Standard packing: waterproof inner packing + outer packing suitable for container transportation
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