Magnesia Refractory Brick
LAR’s magnesia refractory brick is a basic refractory material used in high-temperature industries. The product uses high-purity magnesia (MgO) as the main raw material. The structure gives the brick strong resistance to alkaline slag and high heat.Magnesia refractory brick provides excellent resistance to high temperature and basic slag corrosion. The product maintains stable performance in severe industrial furnace conditions.
LAR’s MgO-C brick contains magnesia and graphite materials. The carbon component improves thermal shock resistance and reduces cracking during rapid heating and cooling cycles.High purity magnesia bricks offer strong mechanical strength and long service life. The dense structure helps reduce slag penetration and improves furnace lining stability.Magnesia bricks for sale are widely used in steel converters, electric arc furnaces, ladles, cement kilns, and non-ferrous metal furnaces. The products help reduce maintenance costs and improve furnace operating efficiency.
Manufacturers produce each magnesia refractory brick through crushing, mixing, pressing, and high-temperature sintering. The final product forms a dense and stable structure. Many industrial users look for magnesia bricks for sale because these bricks perform well in harsh furnace conditions. Some users also compare this product with mgo c brick, but magnesia refractory brick contains little or no carbon. This difference gives it better oxidation resistance in certain environments.
Product Overview
Magnesia refractory brick is a high-temperature refractory material mainly made from magnesium oxide (MgO), offering excellent refractoriness, corrosion resistance, and structural stability. These bricks are designed for industrial furnaces operating under extreme temperatures and harsh chemical environments, where reliable lining protection is essential.
MgO C brick combines the advantages of magnesia and carbon materials to provide enhanced resistance against thermal shock, slag penetration, and mechanical stress. This type of refractory brick is widely used in steelmaking equipment, electric arc furnaces, ladles, and other metallurgical applications where high durability is required.
Magnesia bricks for sale are available in different grades, sizes, and compositions to meet various furnace requirements. Their excellent resistance to alkaline slag and high-temperature erosion makes them suitable for cement kilns, non-ferrous metal furnaces, and industrial heating.
LAR manufactures customized magnesia refractory bricks with carefully selected raw materials and advanced production technology. The products provide stable performance, long service life, and reliable thermal protection. LAR supplies professional refractory solutions according to furnace conditions, operating temperatures, and specific application needs.
Key Features
High Purity MgO Content
The brick contains a high percentage of magnesia. The material resists basic slag attack effectively.
Excellent High Temperature Resistance
The material maintains stability at elevated temperatures. The brick performs well in continuous operation.
Good Corrosion Resistance
The structure resists chemical erosion from alkaline environments. The brick suits metallurgical furnaces.
Stable Mechanical Strength
The sintering process ensures strong bonding. The brick supports heavy loads without deformation.
Reliable Oxidation Resistance
The low carbon content reduces oxidation risk. The brick works well in oxidizing atmospheres.
Typical Product Types
Manufacturers supply several types of magnesia refractory brick:
· Sintered magnesia bricks
· Fused magnesia bricks
· Direct bonded magnesia bricks
· High-purity magnesia bricks
· Customized shapes and sizes
Each type fits different furnace conditions. Engineers select the proper grade based on temperature and chemical exposure.
Technical Characteristics
Item | M-98 | M-97A | M-97B | M-95 | M-91 | |
MgO, % | ≥ | 97.5 | 97 | 96.5 | 95 | 91 |
SiO2, % | ≤ | 1 | 1.2 | 1.5 | 2 | / |
CaO, % | ≤ | / | / | / | 2 | 3 |
Apparent Porosity, % | ≤ | 16 | 16 | 18 | 16 | 18 |
Bulk Density, g/cm³ | ≥ | 3 | 3 | 2.95 | 2.9 | |
Cold Crushing Strength, MPa | ≥ | 60 | 60 | 60 | 60 | |
0.2MPa Refractoriness Under Load, ℃ | ≥ | 1700 | 1700 | 1650 | 1560 | |
Permanent Linear Change, % | 1650℃*2h | 1650℃*2h | 1600℃*2h | |||
-0.2~0 | -0.3~0 | -0.5~0 | ||||
Actual values depend on raw material quality and production methods. A reliable supplier can provide detailed specifications.
Applications
Magnesia refractory brick is widely used in many high-temperature fields:
· Steelmaking furnaces
· Cement rotary kilns
· Glass furnaces
· Non-ferrous metal smelting furnaces
These magnesia refractory brick products protect furnace linings. The bricks help extend equipment life and improve efficiency.
![]()
![]()
![]()
Advantages Compared To Others
Type | Advantages | Application |
Magnesia Refractory Brick | Better oxidation resistance, stable at high temperature | Oxidizing environments |
MGO C Brick | Better thermal shock resistance due to carbon | Severe thermal cycling areas |
Magnesia refractory brick performs better in oxygen-rich conditions. Mgo c brick performs better in areas with rapid temperature changes.
Customization & Manufacturing
A professional supplier offering magnesia bricks for sale can provide tailored solutions. The manufacturer adjusts:
· MgO purity level
· Brick size and shape
· Density and porosity control
· Sintering temperature
The production process ensures uniform structure and stable performance. Each magnesia refractory brick meets industrial requirements. The product supports long-term and reliable furnace operation.
RELATED PRODUCTS
LAR’s magnesia refractory brick is a basic refractory material used in high-temperature industries. The product uses high-purity magnesia (MgO) as the main raw material. The structure gives the brick strong resistance to alkaline slag and high heat.Magnesia refractory brick provides excellent resistance to high temperature and basic slag corrosion. The product maintains stable performance in severe industrial furnace conditions. LAR’s MgO-C brick contains magnesia and graphite materials. The carbon component improves thermal shock resistance and reduces cracking during rapid heating and cooling cycles.High purity magnesia bricks offer strong mechanical strength and long service life. The dense structure helps reduce slag penetration and improves furnace lining stability.Magnesia bricks for sale are widely used in steel converters, electric arc furnaces, ladles, cement kilns, and non-ferrous metal furnaces. The products help reduce maintenance costs and improve furnace operating efficiency. Manufacturers produce each magnesia refractory brick through crushing, mixing, pressing, and high-temperature sintering. The final product forms a dense and stable structure. Many industrial users look for magnesia bricks for sale because these bricks perform well in harsh furnace conditions. Some users also compare this product with mgo c brick, but magnesia refractory brick contains little or no carbon. This difference gives it better oxidation resistance in certain environments.
LAR’s electrocast zirconium corundum brick is a high-performance refractory material used in demanding high-temperature environments. Manufacturers produce electrocast zirconium corundum brick through an electro-fusion casting process. This process ensures a dense and uniform internal structure. LAR’s electro fused zircon corundum bricks contain a combination of zirconia and alumina phases. This composition improves corrosion resistance and thermal stability. Electro zircon corundum bricks perform well in glass furnaces and other harsh industrial conditions. The product belongs to the advanced category of corundum brick materials. The structure shows excellent resistance to molten glass erosion. The material also maintains dimensional stability under long-term thermal exposure. Manufacturers control the internal structure to achieve a density optimization of about 5–6%. This controlled density improves thermal efficiency while maintaining strength.
LAR’s sintered corundum refractory brick is a high-purity refractory material used in high-temperature industrial environments. Manufacturers produce sintered corundum brick by pressing and high-temperature sintering. This process forms a stable crystalline structure based on alumina. LAR’s sintered corundum refractory brick belongs to the advanced category of corundum brick products. The material contains a high percentage of Al₂O₃. This composition provides good resistance to heat and mechanical stress. Manufacturers design the internal structure to achieve a density adjustment of about 5–6%. This density control improves thermal efficiency and reduces unnecessary mass. The structure also helps maintain stability during long-term use. LAR’s sintered corundum brick offers reliable performance in many industrial furnaces. The material provides a balanced combination of strength, stability, and cost efficiency.
LAR’s AZS-33 Bricks are widely used refractory materials in glass melting furnaces. Manufacturers produce AZS-33 corundum Bricks by electro-fusion casting technology. This process creates a dense and stable internal structure. LAR’s AZS-33 Bricks belong to the azs-bricks category. The material mainly contains alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂). The “33” grade indicates the approximate zirconia content. This composition provides balanced corrosion resistance and thermal stability.AZS-33 corundum Bricks are a type of advanced corundum brick used in glass industry applications. The material performs well in contact with molten glass. The structure resists erosion and maintains stability during long-term operation. The zirconia-alumina-silica structure improves resistance to glass liquid erosion and thermal stress. The dense fused cast body also helps reduce glass penetration during long-term furnace operation.AZS-33 bricks offer good thermal stability and reliable mechanical strength. The products help maintain furnace lining integrity and support continuous production conditions.
LAR’s AZS-36 Bricks are high-performance refractory materials used in glass melting furnaces. Manufacturers produce AZS-36 corundum Bricks through electro-fusion casting technology. This process forms a dense and interlocked crystal structure.AZS-36 Bricks belong to the azs-bricks family. The material contains alumina (Al₂O₃), zirconia (ZrO₂), and silica (SiO₂). The “36” grade represents a higher zirconia content than AZS-33. This composition improves corrosion resistance and high-temperature performance. LAR’s AZS-36 corundum Bricks are a type of advanced corundum brick used in critical furnace areas. The material shows strong resistance to molten glass erosion. The structure remains stable during long-term operation.AZS-36 Bricks provide reliable corrosion resistance in glass furnace applications. The products maintain stable performance under high-temperature glass melting conditions. High zirconia content improves resistance to molten glass erosion and chemical attack. The dense fused cast structure also helps extend furnace lining service life.AZS-36 bricks offer good thermal stability and strong mechanical strength during continuous furnace operation. The products reduce glass phase penetration and improve furnace efficiency.AZS-36 bricks are widely used in glass tank furnaces, sidewalls, paving areas, and superstructure sections. The products help lower maintenance frequency and support long-term furnace stability.
LAR’s magnesia carbon refractory bricks are high-performance materials used in steelmaking environments. These products combine high-purity magnesia with carbon materials such as graphite. This structure gives the bricks excellent resistance to heat and slag corrosion. Manufacturers produce each mag carbon brick through high-pressure pressing and controlled heat treatment. The carbon phase improves thermal shock resistance. The magnesia phase provides strong resistance to basic slags.Magnesia carbon refractory bricks provide excellent resistance to thermal shock and slag corrosion. The products maintain stable performance in high-temperature steelmaking environments. LAR’s magnesia carbon bricks combine high purity magnesia with graphite materials. This structure improves thermal stability and reduces cracking during rapid temperature changes.Mag carbon brick products offer strong wear resistance and long service life under severe operating conditions. The dense structure also helps reduce slag penetration and lining damage.Magnesia carbon bricks for sale are widely used in electric arc furnaces, steel ladles, converters, and refining furnaces. The products help improve furnace efficiency and lower maintenance frequency.
LAR’s magnesia chrome bricks are high-quality refractory materials used in steelmaking and metallurgical furnaces. The product combines magnesia (MgO) with chromite (Cr₂O₃), forming a strong and chemically stable structure. This composition provides excellent resistance to slag corrosion and thermal stress. LAR’s magnesia Chrome Brick provides excellent resistance to high temperature, slag corrosion, and thermal shock. The product performs well in severe industrial furnace environments with heavy thermal loads.Magnesia chrome brick contains high purity magnesia and chromium oxide materials. These materials improve structural stability and enhance resistance to chemical attack from basic slags. Direct bonded and rebonded mag chrome brick products offer higher density and stronger wear resistance. The bricks maintain stable performance during repeated heating and cooling cycles.Magnesia chrome bricks are widely used in cement rotary kilns, non-ferrous metal furnaces, refining furnaces, and glass industry applications. The products help extend furnace lining life and reduce maintenance costs.
LAR’s magnesia Alumina Carbon Brick is a high-performance refractory used in steelmaking and metallurgical furnaces. The brick combines fused magnesia, alumina, and carbon materials to form a strong and durable structure. This composition provides excellent resistance to chemical corrosion and thermal shock. LAR’s magnesia Alumina Carbon Brick provides strong resistance to slag corrosion and thermal shock. The product maintains stable performance in high-temperature steelmaking environments.Magnesia materials give the brick high refractoriness and good slag resistance. Alumina and carbon components improve thermal shock stability and structural strength during rapid temperature changes. LAR’s magnesia alumina carbon brick is widely used in steel ladles, converters, electric arc furnaces, and refining furnaces. The product helps extend furnace lining life and reduce maintenance frequency.Manufacturers produce each fused magnesia alumina brick through high-pressure pressing and controlled sintering. Many steel plants source these products from reliable alumina magnesia bricks manufacturers to ensure consistent quality and performance.
LAR’s magnesia spinel refractory brick is a high-performance material widely used in steelmaking and metallurgical furnaces. The brick combines high-purity magnesia (MgO) with spinel (MgAl₂O₄), forming a dense and stable structure. This combination provides excellent resistance to basic slag corrosion and thermal stress. LAR’s magnesia Spinel Brick provides excellent resistance to high temperature and thermal shock. The product performs well in severe kiln operating conditions with strong alkali and thermal load.Magnesia and spinel materials give the brick high refractoriness and stable structural performance. The brick also shows good resistance to clinker corrosion and thermal spalling. LAR’s magnesia spinel brick is widely used in cement rotary kilns, lime kilns, and high-temperature industrial furnaces. The product helps improve kiln lining stability and extend service life.Manufacturers produce each magnesia spinel brick through pressing and high-temperature sintering. Many industrial users source these products from reliable magnesia spinel brick suppliers to maintain consistent performance in critical furnace zones.