Ferro Alloys of Iron come with some elements, like chromium, manganese, silicon, tungsten, molybdenum or vanadium. Monnet Ispat & Energy Ltd. Is an ISO awarded company that manufactures Ferro Alloys of Iron. Monnet Ispat & Energy Ltd. Also manufactures Sponge Iron. Ferro Alloys of Iron are available in different types, Ferro Manganese [Fe-Mn] and Silico-Manganese [Si-Mn].Ÿ These are offered in diverse of shapes and forms from billets and ingots to powders, fillers and allied reinforcements. Ferro alloys are used in the steel making process for introducing alloying elements into the molten metal or as de-oxidizing agents.