Refractory Bricks for Steel Production

I would like to give a general overview to explain how our bricks be used in steel production. Refractory bricks for steel production include Basic refractory bricks and High-Alumina refractory bricks. Basic refractory bricks for steel production include magnesia-carbon ("mag-carbon") refractory bricks for basic oxygen furnaces ("BOFs"), for electric arc furnaces ("EAFs"), for BOF steel ladles, and for steel degassers. High-alumina refractory bricks used in steel production include high-alumina refractory bricks for BOF steel ladles and for torpedo cars. Mag-carbon refractory bricks for BOFs are non-metallic insulating bricks and shapes composed predominantly of magnesia and containing at least 8% carbon. Mag-carbon refractory bricks for BOFs are designed and manufactured to withstand the extreme temperature and mechanical and chemical pressures that exist in BOFs during the steel-making process. Specifically, in addition to its heat-resistant qualities, magnesia is resistant to slag-a non-acidic ("basic") substance formed by chemical action during the high-temperature steel-making process-and has low vulnerability to chemical attack by iron oxide and alkalies, all by-products of the steel-making process. Carbon prevents slag from entering the pores of the brick, further improving the ability of the mag-carbon refractory brick to withstand chemical attack from the slag. Mag-carbon bricks for BOFs are manufactured into specific sizes and shapes unique to BOFs, further strengthening the refractory and improving its ability to withstand heat as well as chemical and mechanical attack, and ultimately enabling the steel-making process to take place by protecting the BOF from these extreme pressures. Mag-carbon refractory bricks for EAFs are non-metallic insulating bricks and shapes composed predominantly of magnesia and containing at least 8% carbon. Mag-carbon refractory bricks for EAFs are designed and manufactured to withstand the extreme temperature and mechanical and chemical pressures that exist in EAFs during the steel-making process, and possess the same chemical properties as mag-carbon bricks for BOFs that make them especially suited to resist the slag and other by-products of the steel-making process. Mag-carbon bricks for EAFs are manufactured into specific sizes and shapes unique to EAFs, further strengthening the refractory and improving its ability to withstand heat as well as chemical and mechanical attack, and ultimately enabling the steel- making process to take place by protecting the EAF from these extreme pressures. BOF steel ladles are used to collect and transport molten steel from the BOF to the area of the steel plant where the molten steel is poured into molds. Slag is less dense than steel, and collects in a BOF steel ladle above the molten steel (the "slag line"). For the same reasons mag-carbon bricks are used to line BOFs and EAFs, mag-carbon bricks are used to line the area of a BOF steel ladle above the slag line in order to protect the ladle itself from the corrosiveness of the slag. Mag-carbon refractory bricks for BOF steel ladles are manufactured into specific sizes and shapes unique to BOF steel ladles. Steel degassers are refractory-lined chambers used to rid molten steel of oxygen and hydrogen that is absorbed during the steel-making process. The steel degassing process causes violent turbulence in the chamber. This turbulence requires the utilization of refractories with high resistance to mechanical wear, and, because of the presence of slag, high resistance to the corrosiveness of the slag. Mag-chrome refractory bricks for steel degassers are specifically designed to withstand the pressures that exist within the degasser chamber. Mag-chrome refractory bricks for steel degassers are manufactured into specific sizes and shapes unique to steel degassers. High-alumina refractory bricks are designed to protect the BOF steel ladle below the slag line from the corrosive forces of molten steel, which is chemically acidic in nature. High-alumina refractory bricks for BOF steel ladles are manufactured into specific sizes and shapes unique to BOF steel ladles. Torpedo cars are used to transport molten iron from a blast furnace to a BOF to further the steel-making process. Molten iron is chemically acidic in nature, with little basic slag. High-alumina refractory bricks are designed to protect the torpedo cars from the corrosive forces of molten iron. High-alumina refractory bricks for torpedo cars are manufactured into specific sizes and shapes unique to torpedo cars.