





40% Alumina Hard Firebrick Hard firebricks are very hard, dense, and durable refractory bricks. These bricks are not insulating in comparison to their IFB counterparts. Typically used for their structural qualities and ability to absorb and conduct heat easily, permitting high temperatures needed in firing. Commonly used in tandem with insulating firebricks …



High Alumina bricks have great features like high temperature performance, great corrosion and wear resistance, high bulk density, low iron content, etc. High Alumina bricks are extensively used in mining, metallurgy, cement, chemical and refinery and refractory industries. These High Alumina bricks - 70% Al₂O₃ can be applied to …



High alumina brick, is a kind of refractory bricks with more than 48% content of Al2O3, which are made of bauxite and other raw material with higher alumina content after molding and calcining. ... high bulk density, low iron content; Application of High Alumina Fire Bricks. mining; Metallurgy; ... Alumina Brick. A、Refractoriness. The ...





Alumina silica refractory brick is a type of acid-resistant and alkali-resistant refractory material. It is mainly made of silicon dioxide. ... Bulk Density: 2.3-2.6g/cm³; Flexural Strength: 7-9MPa; Compressive Strength: 40-70MPa; ... Advantages of Alumina Silicate Brick. High Refractoriness: Alumina silicate firebricks have a high melting ...







Alumina Chrome Brick Description Alumina chrome bricks' main ingredients are corundum and chromic oxide, featured by low impurity content, stable high-temperature chemical property, high refractoriness, high strength, high hardness, and so on. When corundum content is higher than 92%, it is called corundum chrome brick. Al2O3 and …





5. The thermal shock resistance of the high alumina refractory brick is worse than that of the clay brick, which is closely related to the mineral composition in the refractory brick. The high alumina brick, such as I, II grade is worse than the III grade high alumina brick. In production, the thermal shock resistance of refractory bricks is ...



Refractory bricks, also known as firebrick are ceramic materials used to line furnaces, kilns, fireboxes, and fireplaces. ... It mainly consists of 25 to 30% alumina, and 60 to 70% silica. Also, oxides of magnesium, calcium, potassium etc are present. ... Following are the properties of refractory brick. Refractory brick should resist high ...



High alumina ball, is used as a refractory product in various high heat industries. High alumina ball belong to alumina ball, it is called high alumina ball due to its high content of alumina oxides.High alumina balls have excellent qualities including: high bulk density, abrasion resistance, fine high temperature performance, good thermal conductivity, low …



Silica Refractory Brick; Zircon Fire Brick; Carbon Brick; Checker Brick; Insulating Bricks; ... Bulk Density g/cm 3 (110 ℃, 24h ... -(1.2~2.5) Thermal Conductivity W.(m.K)-1 1000℃ ≤0.6: ≤0.6: ≤0.6: 2. High Alumina Silicon Carbide Carbon Gunning Material. High alumina silicon carbide carbon gunning material is made from high alumina ...



With the development of the coking industry and the application of silica refractory bricks in coke ovens, the basic requirements of coke ovens for refractory materials are increasing day by day, especially the carbonization chambers require silica brick with high density, high thermal conductivity and High temperature compressive …







Construction Silica Thermal Conductivity Brick High Density Kiln Refractory Block. Specifications. Silica brick for coke oven silica brick for glass kiln silica bricks for coke oven silica brick is made of quartz stone material, the content of SiO2 is above 93%,it has good resistance to acid slag and good heat conductivity.



Bulk Density (g/cm3) 2.6-2.65: ... Sillimanite bricks are a kind of high quality refractory brick with high refractoriness of 1770~1830℃ and high refractoriness under load of 1600~1650℃, whose physical and chemical property is better than high alumina bricks. Sillimanite transforms into mullite and free silicon dioxide after high ...



70% High Alumina Refractory Brick Specs . Brand Properties 70% Alumina Brick DL-70 SPEC TYPICAL . Apparent Porosity (%) 24 Max 21.0 ... 70.0 Min 72.0 Fe. 2. O. 3 . 2.5 Max 1.7 . Brand Properties 70% High Alumina Refractory Bricks HA-70 TYPICAL . Bulk Density (g/cm. 3) >2.4 (g/cm3) Refractoriness °C 1790 ˚C/ 3254 ˚F Refractoriness …





Silica Insulating Bricks; Silica insulating bricks contains more than 90% of SiO2, bulk density is less than 1.2g/cm3. Silica lightweight insulating bricks usually adopt crystalline quartz or silica sand as raw material, combustible materials such as coke, anthracite saw dust are added into raw material or gas ing method is adopted to …



The alumina-silica (SiO2) group of refractories includes alumina (Al2O3) refractories, which correspond to the SiO2 -Al2O3 phase equilibrium system. They differ from fire clay refractories in terms of Al2O3 content, with Al2O3 levels typically exceeding 45 percent. These refractories have a different raw material base than fire clay bricks.Because of …







NRCL™ High Temperature Alumina Fiber Boards High temperature boards are rigid and self-supporting used at a temperature of 1600-1800°C, which is made from alumina fiber with unique forming technology and treatment process, offer exceptional high temperature stability, low thermal conductivity at elevated temperature. Available in various …





The refractoriness of high alumina fire bricks are higher than clay brick and semi-silica brick, reach to 1750~1790, belong to high-duty refractory. ... Bulk density (g/cm3) 2.65: 2.5: 2.45: 2.4: 2.3: Softening temperature under load (°C ) ... In addition, the high alumina refractory bricks are widely used in checker bricks of heat ...


