Standard Size: 230*114*64 or 230*114*76mm
MgO: ≥89
High Refractoriness
Thermal Stability
High-temperature Resistance
High Cold Crushing Strength
Magnesia bricks are alkaline refractory materials mainly made from magnesite through high - temperature calcination. They have the following performance characteristics:
1. High refractoriness: They can withstand high - temperature environments and are not easy to soften and melt at high temperatures. They can be used as the linings of various high - temperature industrial furnaces, such as steel - making converters, electric furnaces, and glass furnaces. They can maintain structural stability under high - temperature operating conditions, meeting the requirements of industrial production for high - temperature refractory materials.
2. Good resistance to alkaline slag erosion: Magnesia bricks belong to alkaline refractory materials and have good resistance to alkaline slag. At high temperatures, their chemical reaction with alkaline slag is relatively small, which can effectively prevent the slag from eroding the brick body, maintain the integrity and performance stability of the brick body, thus extending the service life of the furnace, reducing maintenance costs and the risk of production interruption.
3. High compressive strength at room temperature: Common magnesia bricks have high compressive strength at room temperature, generally reaching 40 - 60 MPa. This enables them to withstand various external forces such as the pressure of materials in the furnace, mechanical impact, and thermal stress, and are not prone to deformation and damage. It ensures the safety and stability of the furnace structure and can maintain good bearing capacity even during long - term use.
4. Good thermal shock stability: Although the thermal shock stability of magnesia bricks is not outstanding compared with some special refractory materials, it still has certain advantages among ordinary refractory materials. They can withstand a certain degree of rapid temperature changes. During the start - stop process of the furnace and under working conditions with large temperature fluctuations, they will not quickly develop cracks, spalling and other damage phenomena, and have good thermal shock resistance, thus ensuring normal use under complex thermal conditions.
