Advantages: 1. Longer service life, accurate size tolerance, pure color, luster appearance. 2. Excellent thermal shock resistance. 3. Good structural strength at high temperature. 4. Zero thermal expansion rate 5. Without crack and peeling phenomena. Application: 1. It is widely used in hot repair project on coke oven. 2. Coke oven maintenance time shortens greatly. Ensure the quality of coke oven repair. Improve the production of coke oven. 3. CUNSE is not only providing the hot repair method of coke oven, but also contracting for coke oven maintenance. Technical Index: Item Zero Expansion Silica Brick SiO2 % 96 Fe2O3 % 0.7 Al2O3+TiO2+R2O % 0.7 Refractoriness 1710 Apparent Porosity % 22 Bulk Density g/cm3 1.8-1.85 True Density g/cm3 2.34 Cold Crushing Strength Mpa 35 0.2Mpa Refractoriness Under Load T0.6 1680 Permanent Linear Change % 1500 X2h 0 +0.2 Thermal Expansion Coefficient 1000 0.2 Thermal Shock Resistance(1000 Water- cooling, cycles) 25