The difference between high alumina brick and clay brick

High alumina brick and clay brick are two different refractory materials. What is the difference between these two refractories? Here is a detailed introduction to the difference between high alumina brick and clay brick.
1, the composition is different: the main component of high aluminum brick is alumina, aluminum content is high, and the main component of clay brick is clay and other substances.
2. Different fire resistance: high aluminum brick can withstand very high temperature, generally up to more than 1700℃, and ordinary clay brick can only withstand lower temperature, generally about 800℃. Therefore, high alumina bricks are widely used in metallurgy, electric power and other industrial fields, while clay bricks are mainly used in building walls and other parts.
3. Different compression strength: the compression strength of high aluminum brick is higher than that of clay brick, generally between 30-80MPa, and the compression strength of clay brick is lower, generally below 10MPa.
4. Different thermal conductivity: high aluminum brick has low thermal conductivity and good thermal insulation performance, while clay brick has high thermal conductivity and relatively poor thermal insulation performance.
5, the price is different: because of the composition and performance of high aluminum brick is better than clay brick, so the price is relatively high, in the same specification is much more expensive than ordinary clay brick.

6, corrosion resistance is different: because the main component of high aluminum brick is alumina, it has good acid and alkali corrosion resistance, and clay brick is vulnerable to damage in strong acid or alkali environment.
7. Different colors: high aluminum bricks are generally white or grayish white, while clay bricks are more diverse in color, from red, yellow to brown.
8. Different weight: Because of the density of high aluminum bricks, they are relatively heavier than clay bricks. At standard sizes, high aluminum bricks usually weigh more than clay bricks.
9, different characteristics: the main component of high aluminum brick is alumina, with high temperature fire resistance, corrosion resistance and other characteristics; The clay brick is mainly composed of clay, which has the characteristics of sound insulation, heat preservation and water resistance.
10, different uses: high alumina brick is generally used in a variety of refractory equipment under high temperature environment, such as metallurgy, glass and other industries of kiln lining, high temperature furnace; Clay bricks are mainly used in various parts of the building, such as walls, floors, roofs and so on.
It should be noted that although high aluminum bricks and clay bricks have the above differences, they also have something in common, such as common construction and engineering materials, and have certain characteristics of durability and plasticity. Therefore, the actual use should be based on specific needs to choose.