We offer quality Calcium Silicate Blocks  that are well-reckoned for high thermal efficiency of flexible insulation. Our Calcium Silicate Insulation Blocks are manufactured from the optimum quality raw materials as per the set Industrial Standards and Relevant Naval specifications. We also supply Calcium Silicate Insulation Blocks in various sizes as per requirement of the customers. Features Rigid & Light Weight (Density 250 kg/M 3 ) Fire resistant Good Mechanical Strength (Above 10kg/cm2) Low specific Heat Re-usable & Long life Complies With IS 8154 IS 8428 ASTM C 533-90 Applications Cement : Pre-heaters / Pre-calciners, Coolers, TAD etc. Aluminum : Reduction pots, other Thermal Process Equipment Glass : Furnace, Recuperator, Annealing Steel : Various types of furnaces as refractory back up Power Plants : Boilers, Steam lines, Recuperators Fertilizers : Reformers, Steam lines, Furnaces, Petrochemicals Incinerators, high temperature Equipment & Refineries. Hot Gas & Chemical lines Ceramic : Tunnel kilns Ship Building : Boilers, Turbines, Steam Lines, Fuel Gas ducts Chemicals : - Boilers, High Temp. Reactors, Fuel Gas ducts, Steam/ Thermic fluid lines, Dryers, Furnaces Others : Significant fuel saving can be obtained in Sugar Mills, Foundries, Rolling Mills and other industries which use thermal equipment at high temperature. Specifications Properties IS 9428 ASTM C533:90 JR Grade Type I Type II 800 1000 Temperature © max. 950 649 871 800 1000 Bulk Density (Kg/m3)Test Values Avg. Vzalues 200 – 320 220-280 (max) 240 (max) 240 220 – 270 230 – 275 Compressive Strength Reduction in thickness, max. Dry Under a load of 415 KN/m 2 5% 5% 5% 3% 3% Wet, Under a load of 170 Kn/m 2 5% - - 3.5% 3.5% Dry , under a load of 345 Kn/m 2 After 24 hrs heat soak 5% - - 3.5% 3.5% Flexural Strength (Kn/m 2 ) min. 240 310 310 400 400 Heat Resistance after heat soak at max. Temp. For 24 hrs, Liner Shrinkage (length) Max 2% 2% 2.50% 2% 2% Typical - - - 1.6% 1.8% Loss in Mass. Max. 15% - - 15% 15% Thermal Conductivity (W/mk) Max. At mean temp. 200 C 0.080 0.079 0.095 0.070 0.080 300 C 0.097 0.095 0.110 0.080 0.090 400 C 0.121 - 0.136 - 0.105 500 C 0.147 - - - 0.120 Cold Crushing Strength (CCS) (kg/cm 2 ), min Light Grade (k/value 0.12ZW/mk) Medium Grade (k/value 0.15w/mk) - - - 10 25