Magnesia chrome bricks, also known as magnesite chrome bricks, are a type of refractory brick that are composed primarily of magnesia (magnesium oxide, MgO) and chrome oxide (Cr2O3). These bricks are widely used in high-temperature applications where resistance to corrosion, erosion, and thermal shock is required. Here's what you need to know about magnesia chrome bricks:
Composition: Magnesia chrome bricks are primarily composed of magnesia and chrome oxide. The magnesia provides high-temperature resistance, while the chrome oxide enhances the brick's corrosion and erosion resistance.
High-temperature resistance: Magnesia chrome bricks are capable of withstanding high temperatures. They can withstand temperatures up to 1800°C (3272°F) or higher, depending on the specific composition and manufacturing process.
Corrosion resistance: Magnesia chrome bricks have excellent resistance to alkaline slags and basic environments. They are commonly used in applications where they come into contact with molten metals, such as steelmaking, non-ferrous metal smelting, and refining processes.
Erosion resistance: Magnesia chrome bricks exhibit good erosion resistance against abrasive materials and high-velocity gas flows. They can withstand the erosive forces encountered in various industrial processes.
Thermal shock resistance: Magnesia chrome bricks have good thermal shock resistance, allowing them to withstand rapid temperature changes without cracking or spalling. This property is important in applications where thermal cycling occurs.
High mechanical strength: Magnesia chrome bricks possess high mechanical strength, enabling them to withstand mechanical stress and loads in high-temperature environments. They have good resistance to deformation and can support heavy loads.
Application versatility: Magnesia chrome bricks find applications in a wide range of industries, including steelmaking, cement, non-ferrous metals, glass, and petrochemicals. They are used in furnaces, kilns, ladles, converters, and other high-temperature equipment where resistance to corrosion and erosion is critical.
Maintenance considerations: Magnesia chrome bricks can be sensitive to hydration and carbon monoxide (CO) atmosphere. Proper storage, handling, and installation practices are necessary to maintain their performance and prevent degradation.
Magnesia chrome bricks are valued for their high-temperature resistance, corrosion resistance, erosion resistance, and thermal shock resistance. They play a crucial role in protecting refractory linings from the harsh conditions encountered in various industrial processes, particularly those involving high-temperature molten metals and alkaline environments.
Buy low cost Magnesite Chrome Bricks made from top qualified magmesia mixed with chrome concentrate. The content of chrome can be adjusted according to the customer’s requirement. The bricks have a good thermal stability and high temperature performaance, and are widely used in cement kiln or non-ferrous metallurgical furnace,etc.
|Refractoriness Under Load 0.2MPa℃≥||1700||1650||1580||1550|
|Apparent porosity（%） ≤||18||18||18||18|
|Cold Crushing Strength MPa≥||40||40||40||40|