refractories HMQ insulating fire brick

refractories HMQ insulating fire brick1. The HMQ series of insulating fire brick is produced according to the ASTM standard by our company. This kind of product is evenly distributed with small porosity; it could reach high temperature refractoriness under load as well as ensure the apparent porosity.Which possess low thermal capacity, low heat conductivity, low impurities,high strength, etc.2. HMQ series insulating fire brick is suitable to be used in the environment where the temperature varies between 1260 and 1650. It is divided into 4 grades according to the classification temperature. Because HMQ series insulating fire brick possesses features of low thermal capacity, low heat conductivity, high strength, etc, it can reduce heat absorption, lower energy consumption and shorten the working period.3. Our products have being exported to the USA, Japan, Korea, Germany, United Kingdom, Taiwan and so on.4. Technical data:Brand nameHMQ-23HMQ-26HMQ-28HMQ-30Classification tem.°C1260143015401650Bulk densityg/cm30.480.790.891.02Cold crushing strengthMPa11.52.02.5Modulus of ruptureMPa0.91.01.51.8Permanent linear contract%1230°C×24h1400°C×24h1510°C×24h1620°C×24h-0.1-0.2-0.4-0.7Thermal conductivity400°CW/m•K0.130.250.300.37600°C0.150.270.320.39800°C0.170.300.340.421000°C0.190.330.360.451200°C——0.350.380.48Chemical compositionAl2O3%43.2656.3465.8070.40Fe2O31.100.800.730.625. plant and equipment: