How To Choose High Alumina Refractory Bricks

Jun 10, 2025

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    High alumina refractory bricks are a type of aluminum silicate refractory material with an alumina content of more than 48%. They have high thermal stability and a refractoriness of more than 1770°C. They are a commonly used masonry lining material in high-temperature industries.

    1.Determine the use environment of high alumina refractory bricks.

    It depends on the specific situation of the kiln. If it is a new kiln, the material selection guidance provided by the kiln supplier is the basis, and it is necessary to understand the specific use location, use temperature, special environment, etc.; if it is an old kiln repair, it is necessary to come up with a high-alumina brick selection plan based on previous usage experience and effective improvement suggestions.

    2.Determine the size of high alumina refractory bricks.

    High alumina bricks are divided into standard bricks and special-shaped bricks. The proportion of standard bricks and special-shaped bricks is determined. If it is a standard brick, it is easier to purchase; if it is a special-shaped brick, most of them need to be customized.

    3.Determine the manufacturer.

    The key factors that determine the price of high alumina bricks are the manufacturing process and the aluminum content. The aluminum content can be measured by data. The price of standard high alumina bricks on the market is basically measured by the aluminum content; the manufacturing process mainly determines whether it is a standard brick or a special-shaped brick, and whether there are special requirements, which has a lot to do with the manufacturer's process and quality management system.

    The high alumina refractory brick series produced by Haixin Refractory Materials are made of carefully selected high-purity raw materials and fired through scientific proportions and strictly controlled processes. The products not only have excellent high-temperature volume stability and slag permeability resistance, but also significantly improve the thermal shock fatigue resistance by optimizing the microstructure. They can accurately adapt to the extreme temperatures and corrosive environments of different industrial scenarios, and can provide customized services to provide your kiln with long-lasting and reliable thermal protection armor.