Superior Quality Steelmaking Casting Iron FeSi/Ferro silicon/Ferro Silicon 75/72/65 Ferro Silicon

Ferro silicon 75 is widely used in steel making and casting.  In the steelmaking process, the steel needs to be oxygenated to achieve the ideal high temperature environment, and too much oxygen at a later stage tends to produce more oxides in the steel, which affects the quality of the steel.  At the same time, ferro silicon 75 can also effectively promote the fluidity of the steel, improve the absorption rate, reduce the production cost and increase the profit of the steel mill.

Ferro silicon 75 can also be used as an alternative to inoculants in casting to enhance the formation and increase the number of eutectic pellets.  The addition of ferro silicon 75 in the production of ductile iron can effectively prevent the formation of carbides in the iron and promote the precipitation and spheroidization of graphite.  It can effectively improve the fluidity of the iron, thus preventing clogging of the outlet and reducing the tendency of white mouth of the casting.

Ferrosilicon composition table.

Element content

Ferrosilicon is a kind of ferroalloy that is composed produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron or milscale. Ferrosilicons with silicon content up to about 15% are made in blast furnaces lined with acid fire bricks. Ferrosilicons with higher silicon content are made in electric arc furnaces.The usual formulations on the market are ferrosilicons with 60-75% silicon, The remainder is iron, with about 2% consisting of other elements like aluminum and calcium, An overabundance of silica is used to prevent formation of silicon carbide.