"Ferro Alloys - Silico Manganese (SiMn) & Ferro Manganese (FeMn)"

Ferro alloys are high value-added products usually used for manufacturing of mild steel and special steel. SEML is one of the largest producers and exporters of manganese based ferro alloys with exports to more than 60 countries. SEML has been awarded 2 Star-Export house status from the Government of India for its contribution to ferro alloys export. SEML has also been awarded by Engineering Export Promotion Council (EEPC) by Regional Export award in the category of star performer for the FY 08-09. The ferro alloys division constitutes the bulk of SEML top-line as well as bottom-line.

Ferro alloys are produced in sub-merged arc furnaces using electro-thermic process. The main raw materials are manganese ore, fluxes like dolomite & quartz and reductants like coke, charcoal & coal. Ore which is in metallic oxide form is smelted in the furnace. The reduction reactions are endothermic and necessary heat is supplied by captive electricity through self-backing carbon electrodes in the center of the furnace. The electricity passing through the electrode to the charge mix creates arc, which helps in smelting followed by reduction of ores to produce desire quality of ferro alloys.

SEML has total installed capacity of 45 MVA at its Siltara, Raipur plant. The installed capacity is being increased by 25% to 60 MVA due to improvements in operational efficiency.

Specification The specification are as under:

Product/ Grade Size (MM) %C %Mn %P %S %Si FeMn - Normal Quality 10 - 150 6.0 - 8.0 70.0 Min 0.350 Max 0.050 Max 1.50 Max FeMn - Export Quality 10 - 50 6.0 - 8.0 75.0 Min 0.300 Max 0.050 Max 1.50 Max SiMn - Normal Quality 10 - 150 2.50 Max 60.0 Min 0.350 Max 0.050 Max 15.0 - 20.0 Max SiMn - Export Quality 10 - 50 2.50 Max 65.0 Min 0.300 Max 0.030 Max 15.0 - 20.0 SiMn – Premium Grade(Extra low Phos) 10 - 50 10 - 150 2.00 Max 60.0 Min 0.100 – 0.150 0.030 Max 15.0 Min SiMn – Low Boron (50-100 Boron) 10 – 60 2.50 Max 65.0 Min 0.300 – 0.350 0.030 Max 15.0 Min