These two types bricks are made from different raw materials.
Magnesia carbon brick is a resin-bonded brick made of fused magnesia and flake graphite. Antioxidants can also be added if required, magnesia carbon bricks perform well in heat resistance, corrosion resistance, and spalling resistance. Magnesia-carbon bricks are mainly used in basic oxygen converters, electric arc furnaces, linings of DC electric arc furnaces, ladle slag lines and other parts.
Magnesia alumina carbon bricks are made of high quality bauxite, corundum, fused magnesia and graphite. Alumina magnesia carbon bricks have proper residual expansion, low thermal conductivity and better insulating properties. Aluminum-magnesium-carbon bricks are used for the slag line, the lower part of the ladle wall, the bottom and the free zone of the ladle.
