Product Details

High Alumina Refractory Bricks is a refractory product made of aluminum silicate or aluminum oxide with an Al2O3 content of more than 48%. We can provide you with factory prices of sk36, sk37, sk38 and SK40 refractory alumina bricks. 

The fire resistance and refractoriness under load of High Alumina Refractory Bricks are higher than that of fire clay brick, and the slag corrosion resistance (especially for acid slag) is better, and these properties get better with the increase of Al2O3 content. High Alumina Refractory Bricks have high compactness, low porosity, high mechanical strength and wear resistance.

Performance Characters of High Alumina Refractory Bricks

1. High temperature resistance.

2. Chemical erosion resistance.

3. Thermal stability.

4. Slag resistance.

High Alumina Refractory Bricks can also be classified according to their mineral composition, generally divided into five categories: low mullite (sillimanite), mullite, mullite corundum, corundum mullite and corundum.

Also, we have SK30, SK32, SK34, SK35 refractory clay bricks for your choose. Their alumina content is lower than High Alumina Refractory Bricks, and the working temperature is lower, but the price is cheaper. If you need, you can also choose refractory clay bricks.  

Applications of High Alumina Refractory Bricks

High Alumina Refractory Bricks are mainly used for lining of blast furnace, hot blast furnace, electric furnace roof, blast furnace, reverberatory furnace and rotary kiln.

1. Metallurgical industrial furnace and heat treatment furnace.

2. The melting pot of chemical industry and construction industry.

3. Garbage incinerator and circulating fluidized bed boiler.

Due to different resources, the standards of different countries are not completely consistent. For example, the lower limit of Al2O3 content for high alumina refractories in European countries is 42%. In China, the Al2O3 content in high alumina bricks is generally divided into three grades: Grade I - Al2O3 content > 75%; Grade II - Al2O3 content is 60-75%; Grade III - Al2O3 content is 48-60%.

Standard size of High Alumina Refractory Bricks

230x114x65mm. High Alumina Refractory Bricks can be customized for different sizes and shapes. Welcome to OEM and ODM.

High Alumina Refractory Bricks boasts low iron, giving it high mass density bricks, thus increasing their durability, making them a great material for bricks used in furnaces. High-alumina brick is generally used in industry furnaces like iron, steelmaking, hot blast furnaces, electrical furnace cladding, blast furnaces, blast furnaces, cavity furnaces, rotating furnaces, linings, etc., that are mostly composed of bauxite with high alumina; sillimanite minerals (including kyanite, red sill, sillimanite, etc. Alumina is the typical material of kiln bricks, which are usually used together with other materials. Mullite fire brick uses mullite along with high-alumina content to produce a high-refractoriness material.

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