Fireclay brick description
Main Characters: The refractoriness of the fireclay bricks for coke oven is usually 1580-1750 ℃, the refractoriness under load is not less than 1300 ℃, this kind of bricks has good thermal shock resistance, higher erosion resistance to acid slag than to alkali slag and the reheating line change rate is not more than 1%.
Main applications: This fireclay bricks are mainly used in low temperature parts of the coke oven but with large temperature fluctuations, such as door, lining bricks of small flue zone, oven head, wall bricks and checker bricks of regenerate zone.
Physical and Chemical Index are as below
Index |
Item |
Fire clay brick |
Al2O3 , %≥ |
35 |
0.2Mpa refractoriness under load , ℃≥ |
1300 |
Compressive Strength , MPa≥ |
20 |
Refractoriness, ℃≥ |
1690 |
Apparent Porosity, %≤ |
24 |
Bulk Density , g/cm3 |
2.1 |
Reheat line change, %1350℃x2h |
0.5 |
Thermal line expansion rate,20~1000℃ |
0.4~0.6 |
Thermal resistance, number of heat shifts, ≥ |
10~20 |
Fireclay brick packing
Fireclay bricks are packed on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with steel strips.
Fireclay brick order quantity
20 t as minimum quantity is accepted.
Fireclay brick delivery time
The production capacity reach to 3000 t per month and the delivery begins 30 day after contract being effective
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