1. Chemical composition:Fe,Si,Al,Ca,Mn,Cr,P,S,C 2. ... -A, FeSi75-B, FeSi75-C, FeSi65, FeSi45, etc.2. Chemical composition: Fe, Si, Al, Ca, Mn, Cr, P, S, C.3 ... in steel-making.2. Ferrosilicon also can be used as alloy elements join agent, which is widely used in low ... alloy steel, non-ferrous metal, bearing steel, heat-resistant steels and ...