Magnesia brick
MgO% (≥): 89 - 97.5
Density (g/cm³): 2.85 - 3.0
Refractive index at load (℃): 1500 - 1700
Cold pressing strength (MPa): 45 - 60
Advantages of Magnesium Bricks
Fire resistance
Magnesium refractory bricks can withstand extremely high temperatures, typically above 1500 degrees Celsius. Magnesium bricks are an excellent type of refractory material that can withstand high-temperature environments without losing its structural strength.
Excellent slag resistance
Magnesium bricks are a type of alkaline refractory brick with strong resistance to alkaline slag. They are commonly used as construction materials for alkaline kilns. Magnesium bricks have high strength and hardness and can withstand significant pressure and load.
Good thermal conductivity
The refractory magnesia bricks have high thermal conductivity, which enables them to quickly absorb and release heat. This makes them highly effective in applications requiring rapid heat transfer, such as high-temperature furnaces and kilns.
Long service life, durable
Magnesium refractory bricks are resistant to high temperatures and chemical erosion, and have a long service life. They are not prone to damage or degradation and can stably perform the functions of a refractory structure for a long time.
Thermal expansion adaptability
The linear expansion coefficient of magnesium bricks increases with rising temperature. In high-temperature environments, it can conduct and dissipate heat rapidly, preventing the accumulation of thermal stress and reducing the risk of structural damage.
Lightweight materials
Compared with other fire-resistant materials, magnesia bricks have a lower density and are lighter in weight. This makes them very useful in certain situations where the structural load needs to be reduced, and it also facilitates the construction and transportation processes.
Application of Bricks
Metallurgical Industry
Refractory magnesia bricks are widely used in high-temperature equipment in the metallurgical industry, such as steel-making furnaces, non-ferrous metal smelting furnaces, converters, electric furnaces and railway blast furnaces. They can withstand high temperatures and chemical erosion, protecting the structure of the furnaces and maintaining stable temperatures inside.
Glass Industry
During the glass manufacturing process, refractory magnesia bricks are commonly used in equipment such as glass kilns, glass fiber ladles, and glass tanks. They can withstand the high temperatures during glass melting and possess excellent thermal shock resistance and chemical stability. This ensures the stability and efficiency of the glass production process.
Chemical Industry
Refractory magnesia bricks are widely used in chemical plants and oil refineries. They can resist the corrosion of chemicals and are used in equipment such as reactors, furnaces, storage tanks, and pipelines. Refractory magnesia bricks are ideal materials for the chemical industry to handle corrosive media and high-temperature reactions.
Electric power industry
In the electric power industry, refractory magnesia bricks are commonly used in high-temperature equipment, such as boilers, combustion chambers, and chimneys in power stations. They can withstand high temperatures and thermal stress, protecting the equipment structure and improving combustion efficiency.
High-temperature furnace
Refractory magnesia bricks are widely used in various high-temperature kilns, including steel furnaces, aluminum furnaces, copper furnaces, glass furnaces, cement kilns, etc. They can withstand high temperatures and thermal shocks and maintain the stability of the kiln structure. They are the ideal choice for various high-temperature furnaces.
Other industries
Refractory magnesia bricks can also be used in other fields, such as construction, ceramics, and ceramic kilns. In these applications, refractory magnesia bricks can be used in furnaces, chimneys, furnace linings, insulation boards, and other structures to provide fire resistance and insulation functions.
