Which Type Of Magnesia Spinel Brick Or Magnesia Chrome Brick Is Suitable For RH Furnace?

Magnesia Hercynite spinel bricks and magnesia chrome bricks are refractory materials that are often used in rotary kilns and other high-temperature equipment in the steel industry. However, for RH furnaces (liquid steel vacuum treatment equipment), the choice of brick needs to be considered based on its specific needs.

Adaptable temperature: The adaptable temperature range of Magnesia Hercynite Brick is lower, approximately between 1300°C and 1500°C, while the adaptable temperature range of magnesia chrome bricks is higher, which can reach 1600°C. For RH furnaces, magnesia-chrome bricks may be more suitable if the processing temperature is higher.

Chemical stability: Magnesia spinel bricks have good resistance to chemical attack by alkaline slag and molten steel, while magnesia-chrome bricks are more susceptible to the effects of these substances. Therefore, if the RH furnace needs to handle alkaline slag or molten steel, magnesia alumina spinel bricks may be more suitable.

Mechanical properties: Magnesia-chrome bricks have better thermal shock resistance, while magnesia-spinel bricks have stronger wear resistance. For the RH furnace, its mechanical performance requirements also need to be taken into consideration.

In summary, the choice of magnesia spinel bricks or magnesia chrome bricks depends on the specific conditions of the RH furnace. If the processing temperature is higher and better mechanical properties are required, then magnesia-chrome bricks may be more suitable; if resistance to erosion by alkaline slag or molten steel and better wear resistance are required, then magnesia alumina spinel bricks may be more suitable. In practical applications, other factors need to be considered, such as cost, availability, etc.