Silica Brick Refractory

Silica Brick Refractory Product DescriptionSiO2 content: Above 95%. Al2O3 content: Below 1.0%. Usage: Hot-blast stove. Our factory product various kinds of refractory products. The products can be made according with the customers' requirement.Advantage: 1) Silicon oxide is above 95%. 2) Good acid erosion resistance. 3) High softening point with temperature. 4) No shrink in burn repeatedly. 5) Temperature of refractoriness under load is above 1650º C Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products.Silica BricksSilica brick for glass furnaceItem:GF-96AGF-96BGF-95AGF-95BSiO 2≥96≥96≥95≥95Fe 2 O 3≤0.8≤1.0≤1.2≤1.2Apparent porosity %≤22(24)Cold Crushing Strength MPaBrick below20KG≥35(30)Brick ≥20KG≥30(25)Refractoriness under load ºC≥1680≥1670≥1660≥1650True density g/cm ³≤2.34≤2.34≤2.35≤2.35 Silica brick for coke ovenItem:CO-94ACO-94BSiO2: %≥94≥94Al 2 O 3 : %≤ 1.5≤ 1.5Fe2O3: %≤ 1.5≤ 1.5Refractoriness under load 0.2Mpa≥ 1650ºC≥ 1650ºCApparent porosity: %≤ 22≤ 24Bulk density: g/cm ³≤ 2.34≤ 2.35Cold crushing strength: MPa≥30≥25Permanent linear change % (1450ºC ×2h)0 0.20 0.2Thermal expansion(1000ºC)≤1.28≤1.30 Silica brick for hot blast furnaceItemHBF-95SiO2≥ 95Al2O3≤ 1.0Fe2O3≤1.3Apparent porosity %≤22(24)Cold crushing strength MPa≥45(35)Remaining quarts %≤1.0Refractoriness under load ºC≥1650Creep(0.2Mpa ×1550ºC×50h) %≤0.8Thermal expansion coefficient (1000ºC) %≤1.25Apparent density g/cm ³≤2.32