Magnesia Carbon Bricks

Magnesia Carbon Bricks Introduction:

MgO–C bricks can be fabricated using various carbon sources, such as expanded graphite, carbon black, carbon nanotubes, carbon nanofibers, and graphene and its oxides. Among these, expanded graphite is particularly promising.

Magnesia carbon bricks or MgO-C brick are the carbon composite refractories materials made up of magnesium oxide materials and carbon materials. Magnesium carbon bricks have strong high heat resistance, good thermal shock resistance, strong slag resistance and low creep at high temperature. Additionally, these bricks have the good anti-stripping ability and are widely used in the converter lining, electric arc furnace and slag line of the ladle.. MgO-C (magnesia-carbon) refractory bricks are widely used in steel industry, the primary consumer of refractory linings, such as basic oxygen furnaces, electric arc furnaces, and ladle furnaces.

Magnesia Carbon Bricks Advantages:

The properties of magnesia carbon bricks of good resistance to thermal shock, corrosion, erosion, and oxidation are primarily driving the market growth. Magnesia–Carbon (MgOsingle bondC) refractories have been widely used in steel making industries as the main working lining brick material of electric arc furnaces, converters, and steel ladles, mainly because of its high refractivity, excellent thermal shock resistance, low wettability, and high slag penetration resistance. By a magnesia-carbon brick there is understood a brick based mainly on the components burned magnesite, carbon in the amount of typically 5-30% carbon by weight and a suitable binder. Magnesia-carbon bricks are used in the wear lining of a converter for steel production, and are substantially more resistant to wear than magnesite bricks in which the percentage of carbon used is not so high.

Magnesia Carbon Bricks Application:

Magnesia-carbon (MgO-C) refractory is important and widely used refractory in the steelmaking. It is characterized by a reduced slag infiltration depth and a high thermal shock resistance due to its carbon (C) content. Applications of this refractory not only include wear linings in basic oxygen furnace (BOF), electric arc furnace (EAF), and steel ladle, but also functional products such as purging and taphole bricks. The success of the use of basic MgO-C refractory in the steelmaking is based on its good properties of resistance to erosion, corrosion, and thermal shock.

Magnesium carbon bricks are mainly used in key refractory parts of high-temperature industries, especially in steel smelting:
‌Converter‌: Used in the lining, furnace mouth, and slag line area of ​​the converter, which can withstand the erosion of molten steel and slag.
‌Electric arc furnace‌: Used in the furnace wall, furnace bottom and other parts of the electric arc furnace, which can withstand high temperature and scouring.
‌Ladle‌: Used in the lining and furnace cover of the ladle, resisting the chemical erosion of molten steel and extending the service life.
‌Refining furnace‌: Suitable for key parts of refining furnaces such as LF furnaces and RH furnaces, meeting the requirements of high-temperature refining processes.