Fused Cast Block Magnesia Chrome Brick Manufacturer

Al2O3 ≥/%: 80-95

Volume density ≥/(g/cm³): 2.7 - 3.2

Flexural strength ≥/(MPa): 9 - 11

Compressive strength ≥/(MPa): 60

Permanent linear change ≤/(%): ±0.5

The alumina content of corundum casting material is greater than 90%, ensuring the presence of a large amount of corundum as the main crystal phase. It has the advantages of high strength, stable volume, and corrosion resistance. Corundum casting material is usually constructed by the casting method and can be cast into an integral lining or assembled on-site.

Advantages of Corundum Fireproof Mortar

Corrosion Resistance

Corundum mortar has excellent corrosion resistance, which can effectively prevent chemical erosion from acids, alkalis and other corrosive substances. This feature ensures its service life and performance in corrosive environments. 

High pressure strength

The corundum particles provide a high-strength framework, while the binder material enhances the cohesion between the particles. This combination gives the casting material excellent compressive strength, enabling it to withstand high-pressure conditions without significant deformation or structural failure. 

Good volume stability

The corundum casting material exhibits excellent volume stability, which means that even under extreme heat conditions, they can maintain their shape without deforming. This stability reduces the risks of cracking, flaking or structural damage, ensuring the long-term integrity of the refractory lining. 

Outstanding mechanical strength

The mechanical strength of corundum castables includes compressive strength, tensile strength and flexural strength. This enables them to withstand the mechanical loads and stresses encountered during operation, providing structural integrity and reliability in harsh industrial environments.

Application of Corundum Fireproof Mortar

Lining

Corundum mortar can be widely used in various lining materials, including 

Steel-making furnace

Can be used as the inner lining of electric arc furnaces and steel ladles in steel production process 

Glass kiln furnaces

Corundum casting materials are used for the inner wall lining of glass kilns, as well as the tops and bottoms of cement kilns. 

Spatula and crucible

Corundum casting materials are widely used in industries involving metal melting and pouring operations for the construction and maintenance of steel ladles and crucibles. The use of corundum casting materials in the affected areas can restore the integrity of the crucibles and extend their service life. 

Pipes and chimneys

Corundum refractory materials are used as inner linings for flues and chimneys in power plants and industrial facilities. They possess the characteristics of high temperature resistance, heat cycling resistance, as well as resistance to chemical erosion caused by smoke and combustion. 

Burner throat pipe

Ceramic molding materials can be used for the burner throat pipes and preheaters of industrial furnaces and kilns, and can withstand the harsh conditions of high temperatures and chemical corrosion.