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Fireclay Brick are divided into professional clay brick and ordinary clay brick according to their use. It has characteristics of high temperature resistance, corrosion resistance and spalling resistance.
Special Fireclay Brick
Item | Specifications | ||
ZN-45 | ZN-40 | ZN-36 | |
Al2O3(%) ≥ | 45 | 40 | 36 |
0.2Mpa RUL(℃) ≥ | 1430 | 1380 | 1350 |
Bulk Density(g/cm3) | 2~2.4 | 2~2.4 | 2~2.4 |
Permanent Linear Change(%) 1400℃×2h | -0.2~+0.1 | -0.3~+0.1 | -0.4~+0.1 |
Apparent Porosity(%) ≤ | 16 | 19 | 22 |
Cold Crushing Strength(Mpa) ≥ | 60 | 40 | 35 |
Note : Bulk density is just for designing brick quantity, without reference. | |||
Normal Fireclay Brick
Item | Specifications | ||
ZN-45 | ZN-40 | ZN-36 | |
0.2Mpa RUL(℃) ≥ | 1300 | 1250 | 1200 |
Permanent Linear Change(%) （1350℃×2h） | -0.5~+0.1 | -0.5~+0.2 | - |
Apparent Porosity(%) ≤ | 24 | 26 | 28 |
Cold Crushing Strength(Mpa) ≥ | 30 | 25 | 20 |
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