Ferro Silico Manganese (SiMn) is a ferroalloy with high contents of Manganese and Silicon. It is made by heating a mixture of the oxides Manganese Oxide, Silicon dioxide, and Iron oxide, with carbon in a furnace.
Ferro Manganese is an alloy with high percentage of manganese, which is made by heating a mixture of oxides, MnO2 and Fe2O3 with high carbon content in blast furnace or an electric arc furnace-type system.
Ferro Silicon is an alloy which is abundantly used in the steel casting and steel manufacturing process. Depending on the processes, Ferro Silicon can be used as the de-oxidizing agent or as the reducing agent to produce low carbon alloys.