Low Porosity Clay Brick |Low Porosity Clay Brick |Low Porosity Clay Brick

Low porosity clay bricks are made of high quality calcined flint. With the features of high strength, good refractoriness, dense structure, low porosity, excellent thermal shock resistance, no stripping, Low porosity clay bricks are widely used in hot blast stove and glass furnace regenerator.

Low porosity clay

The chemical composition of fire clays are 23-34% Al2O3, 50-60% SiO2 and 6-27% loss on ignition together with various amounts of Fe2O3, CaO, MgO, K2O, Na2O and TiO2. Chemical analyses from two 19th-century sources, shown in table below, are somewhat lower in alumina although a more contemporary source quotes analyses that are closer.

Low porosity clay bricks take flint clinker as the main raw material with the apparent porosity of 17%. Fire clay bricks take refractory clay and flint clay clinker as the main raw material, containing 30% to 46% alumina with refractoriness 1580 ~ 1770 ℃. It is a weak acid refractory materials with good thermal shock resistance, good corrosion resistance to acidic slag. Low porosity clay bricks are widely used in steel, glass and chemical industries.

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