Silicon and manganese in silicon-manganese alloys have a strong affinity with oxygen. When silicon-manganese alloys are used in steelmaking, the deoxidation products MnSiO3 and MnSiO4 produced melt at 1270°C and 1327°C respectively. They have low melting points, large particles, and are easy to float. , good deoxidation effect and other advantages. Under the same conditions, using manganese or silicon alone for deoxidation, the burning loss rates are 46% and 37% respectively, while using silicon-manganese alloy for deoxidation, the burning loss rate is 29%. Therefore, it has been widely used in steelmaking, and its output growth rate is higher than the average growth rate of ferroalloys, making it an indispensable compound deoxidizer in the steel industry.
Silicon-manganese alloys with a carbon content of less than 1.9% are also semi-finished products used in the production of medium-low carbon ferromanganese and electrosilicothermal metal manganese. In ferroalloy production enterprises, the silicon-manganese alloy used for steelmaking is usually called commercial silicon-manganese alloy, the silicon-manganese alloy used for smelting low-carbon iron is called self-use silicon-manganese alloy, and the silicon-manganese alloy used for smelting metal is called high silicon-manganese alloy. Silicon manganese alloy.
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