Feuerfest Kalksandstein

refractory silica bricks are manufactured in our group company under the name of " Zhengzhou Dongfang Industrial Group", for more information about our group please visit: www.zzeast.com 1.typical physical and chemical properties: Itemssilica brick (brands)BG-96ABG-96BBG-95ABG-95BSiO2 % minimum96969595Fe2O3 % maximum0.81.01.21.2R.U.L, 0.2MPa >=1680167016601650Melt Indexweight<=20kg, <=0.5-0.7-Weight>=20kg,<=0.6-0.7-Specific gravity, g/cm3<=2.342.35P.L.C %1450×2h-Apparent Porosity % <=22(24)Expansion rate(1000°C)%-Cold Crushing Strength, Mpa >=Weight<=20kg, 35(30)Weight>=20kg, 30(25) 2. low residue quartz -those silica bricks made of special raw materials that allows a maximum convertion and leaves minimum quartz unconverted, which is key tothe performances of silica bricks in campaign. silica bricks for coke ovens