Fireclay Brick
Low Density Fireclay Brick
Apparent Porosity (%) ≤12
Bulk Density (g/cm3) ≥2.37
Cold Crushing Strength (Mpa) ≥68
0.2Mpa Refractoriness Under Load T0.6 ℃ ≥1500
PRODUCT DESCRIPTION
Introduction:
Low porosity fireclay bricks are made of high-quality charred gemstones as main raw materials, containing 30%-46% of alumina, with a refractoriness of 1580-1770°C, and are weakly acidic refractory materials.
Features:
It has characteristics of high strength, high refractoriness, low apparent porosity, good thermal shock stability, resistance to penetration, peeling, and good corrosion resistance.
Applications:
It’s mainly used in iron and steel industry, hot blast stove, glass furnace regenerator chamber, petrochemical industry and other industries.
TECHNIQUE DATA
| Item | DN-12 | DN-15 | |
| Refractoriness | SK | 32 | 32 |
| ℃ | 1770 | 1770 | |
| Chemical Composition % | Al2O3 ≥ | 45 | 42 |
| Fe2O3 ≤ | 1.2 | 1.5 | |
| Apparent Porosity％ ≤ | 12 | 15 | |
| Bulk Density g/cm3 ≥ | 2.37 | 2.30 | |
| Cold Crushing Strength Mpa ≥ | 68 | 60 | |
| 0.2Mpa Refractoriness Under Load T0.6 ℃ ≥ | 1500 | 1470 | |
| Permanent Linear Change on Reheating(%） | 1400℃ 2hour | +0.05- -0.1 | +0.0- -0.2 |
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