Do You Know How To Classify High Alumina Refractory Bricks?

Do you know how to classify high alumina refractory bricks?

Refractory high alumina brick is a type of shaped refractory material with an alumina content greater than 75%. It is widely used in the construction of various high-temperature kilns. There are many classifications of refractory high-alumina bricks, and according to the use in high-temperature kilns There are also differences in the ratio of raw materials depending on the parts used.

How to classify high alumina refractory bricks?

1. Classification based on different ratios of raw materials

High alumina refractory bricks are mainly classified into first-grade high alumina bricks, second-grade high alumina firebricks, third-grade high alumina fire bricks, special grade high alumina refractory bricks, corundum bricks, low creep high-alumina bricks, and dense high alumina firebricks based on different raw material ratios. Aluminum bricks, aluminum carbide high alumina firebricks, andalusite bricks, etc., these are the common types of high alumina bricks we use in high-temperature kiln construction. We can choose different brick types depending on the location where they are used.

2. Classification based on appearance
From the appearance point of view, high alumina refractory bricks are mainly divided into standard bricks, ordinary bricks, wedge-shaped bricks, special-shaped bricks and special-shaped bricks. Depending on the location of use, we will choose different shapes. Sometimes if the location of the kiln is relatively special, we can also Customized special-shaped bricks and high alumina bricks are used.

3. Classify according to numbers
Usually our common high-alumina brick letter numbers are T, Z, C, S, K, J, which respectively represent general bricks, right-angle bricks, side wedge bricks, vertical wedge bricks, wide wedge bricks and arch foot bricks. Their pinyin The first letter starts with their number, followed by the dash-divided sequence number. Let's take general bricks as an example. The brick numbers of general bricks are: T-1, T-2, T-3, T-4, T-5….T-105.

4. Classification according to the size used

High alumina refractory bricks come in many sizes, and a series of standards have been drawn up for refractory bricks. Generally, our common standard bricks are: 230x115x65mm; four-piece bricks: 230x115x40mm; three-piece bricks: 230x115x30mm; gable bricks: 150x120mm, etc. These are all different The sizes of commonly used refractory bricks are used in different usage situations. Of course, sometimes we also customize them according to the size of our own high-temperature kiln.

High alumina refractory bricks are widely used in the construction of high-temperature kilns, such as some smelting furnaces, hot blast furnaces, aluminum melting furnaces, etc. We must plan in advance when using them, depending on the high temperature resistance of our kilns Choose different refractory bricks.
​