... composition:Fe,Si,Al,Ca,Mn,Cr,P,S,C 2.Application: replace ferro silicon in steel making as deoxidizer 3 ... composition: Fe,Si,Al,Ca,Mn,Cr,P,S,C 2. Model Number: FeSi75-A,FeSi75-B, FeSi75-C,FeSi65,FeSi45, etc ... briquette can replace ferro silicon in steel making as deoxidizer.2. Increase the Si content when smelting pig iron,ductile cast ...