Ferrosilicon manganese

Ferrosilicon manganese is applied in metallurgy in the steel production process for deoxidizing and alloying steel.
Silicomanganese is also used as a reductant in the silicothermal process, in particular for the production of carbon-free, low-carbon and medium-carbon ferromanganese and ferrochrome, as well as in the production of fluxes.

The characteristics of silicon as a reductant are:

• High oxygen affinity, but it is decreasing with increasing temperature;
• Possibility to obtain carbon-free ferroalloys;
• During the melting process, silicides are formed, which in turn increases the silicon content of the alloy;
• Higher electricity consumption;
• Silicon is a more expensive reductant, as it is used in the form of a ferroalloy.

Silicomanganese is a lumpy material with a silvery metallic color. Both silicon and manganese contribute significantly to the properties of steel, depending on the amount added and their combined effect with other alloying elements. Silicon and manganese react actively with oxygen and act as deoxidizers.

The application of silicomanganese results in the reduction of carbon in the steel compared to an equivalent batch of standard ferrosilicon 75 (FeSi 75) and high-carbon ferromanganese (HCFeMn). Calculations of fluid dynamics show that the silicon output from silicomanganese is higher than from standard FeSi 75.