... 1.Chemical composition: Si(30%-75%),Fe,Ai,Ca 2.Size: according to your needs 3.Supply: 3000t ... powder 1. Shape: lump , granule , powder , briquetting 2. Size: 0mm-3mm 3. Chemical composion: Si(30%-75%),Fe ... ,Ai,Ca,Mn,Cr,C,P,S4. To precipitate and diffuse deoxidation in steel making ... is often used as deoxidizer in steel- making.2. Ferrosilicon also can be used as alloy elements join ...