Excellent firebrick for English fireplace 1.ISO:9002; 2.Size:230x114x30mm; 3.High resistance on fire; 4.Unusual shape.
The harsh working environment of glass furnace requires low porosity fireclay brick of strong capability of both chemical and mechanical erosion. The main chemical components of fire clay bricks are: 30%-48% alumina, 50%-60% silica and some alkali metals, alkali earth metal oxides, etc. Mineral composition is usually mullite, quartz and glass phase; Its refractoriness is 1580°C -1780°C and refractoriness under load is 1250°C-1450°C. Low line expansion coefficients, good thermal stock resistance and strong ability to resist erosion of acid slag.
