Characteristics of mullite-corundum bricks
| Name of indicators | ISS-72 | MCP - 72 | MKS-90 |
|---|---|---|---|
| Mass fraction, %: | |||
| Al2O3 , not less | 72 | 72 | 90 |
| Fe2O3, not more | 1,5 | 1,5 | 0,8 |
| Additional linear shrinkage, at temperature 1600 °C, not more than | 1,0* | 1,0 | - |
| Open porosity, %, not more than | 24 | 16(18) | 24 |
| Compressive strength, N/mm², not less than | 30 | 80(30) | 50 |
| Softening onset temperature, °С, not lower | 1 500 | 1550 | 1 660 |
Description of mullite-corundum bricks
Mullite corundum bricks are a special type of refractory brick that is made from a mixture of mullite and corundum.Mullite corundum refractory bricks contain a high percentage of aluminum oxide over 72 to 90 (Al2O3) in their composition.
Kerui Refractory offers MCC mullite corundum bricks to its customers. Mullitocorundum medium-density MKS products are classified as aluminosilicate refractories.
Advantages of mullite-corundum bricks
Mullite corundum bricks have high strength and hardness, which allows them to withstand high loads and wear caused by friction and abrasion.
Mullite corundum bricks have good corrosion resistance, which allows them to resist corrosive environments such as acids, alkalis and other chemicals.
Mullite corundum bricks have good resistance to thermal shock, which allows them to withstand sudden temperature changes without risk of fracture. This is very important for materials used in high-temperature applications.
Mullite corundum bricks also have good thermal stability, allowing them to retain their properties at high temperatures, making them ideal for use in high temperature applications such as kilns and mining.
Application of mullite-corundum bricks
Mullite-corundum bricks can be used to create walls, bottoms and roofs of furnaces, mines and other high-temperature devices. It is highly heat and thermal shock resistant and can withstand high temperatures and rapid temperature changes.
Due to its chemical stability, mullite-corundum bricks are used in various processes in the chemical industry. It is used for the construction of reactors, burners, high-temperature pipelines and other apparatuses that encounter aggressive chemical media.
Mullitocorundum bricks are also used in the steel industry, Mullitocorundum bricks are mainly used in the construction of converters, steel furnaces and other systems. These systems must withstand high temperatures and chemical erosion of molten metal and slag.
Mullite corundum bricks can be used in the glass industry to create refractory structures such as glass melting furnaces.
Mullite corundum bricks can be used in the cement industry to create refractory structures such as cement kilns.
Mullite corundum bricks are used in the aluminum industry to create refractory structures such as aluminum smelting furnaces.
