Refractory Bricks
Magnesia Carbon Bricks

Magnesia Carbon Bricks

Magnesia Carbon Bricks, a kind of unburned carbon composite refractory, are manufactured with magnesium oxide of alkaline oxide with high-melting-point (2800℃) and carbon material with high melting point that is difficult to be eroded by furnace slag as the raw materials, and added all kinds of non-oxides additive and carbon binding agent.

Description for Magnesia Carbon Bricks

Magnesia Carbon Bricks, a kind of unburned carbon composite refractory, are manufactured with magnesium oxide of alkaline oxide with high-melting-point (2800℃) and carbon material with high melting point that is difficult to be eroded by furnace slag as the raw materials, and added all kinds of non-oxides additive and carbon binding agent.

As a kind of composite refractory, Magnesia Carbon Brick utilizes strong slag corrosion of magnesia and high thermal conductivity and low expansibility of carbon efficiently, which make up for the biggest disadvantage of worse spalling resistance of magnesia.

Magnesia Carbon Bricks Properties

  • Good high temperature resistance property

  • Strong slag erosion resistance

  • Good thermal shock resistance

  • Low high-temperature creep

  • Good heat stability

  • Good thermal conductivity

Magnesia Carbon Bricks Manufacturing Process

Traditional magnesia carbon bricks that are manufactured according to cold mixing techniques with compound tar binding agent becomes harden and gets the necessary strength. Thus form isotropous vitric carbon. This kind of carbon does not show the thermoplasticity that can duly remove amount of stress in the process of lined firing or operating. Magnesia Carbon Bricks are made of pitch binding agent, which has higher high temperature plasticity because of forming anisotropic graphitization coke structure in the pitch carbonation process.

Magnesia Carbon Bricks Uses

Magnesia Carbon Bricks are mainly used for linings of converter, electric-arc furnace and direct current electric arc furnace, slag line of steel ladle and other position.

Magnesia Carbon Bricks Composition

Magnesia Carbon Bricks are a kind of quality refractory materials. Their main components are magnesium oxide and carbon, of which magnesium oxide content is 60~90% and carbon content is 10~40%. This kind material is made of high purity magnesia particle, carbon material, tar, pitch or resin as the raw materials through high temperature baking. Magnesia Carbon Bricks have properties of slag corrosion resistance, thermal shock resistance, thermal conductivity and etc.

Physical And Chemical Index Of Magneisa Carbon Bricks

Magneisa Carbon Bricks

Item/IndexMGC-10MGC-12MGC-15MGC-18MGC-20
Bulk Density (g/cm3)2.952.902.852.802.78
Apparent Porosity (%)3~53~53~53~53~5
Compressive Strength (kg/cm2)450400400350350
Expansion at 1000 ℃1.201.201.201.201.20
Chemical Composition (%)MgO8684807674
F.C.1012151820
ApplicationLadleEAF

Ladle

BOF

EAF

Ladle

BOF

EAF

LF

BOF

EAF





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