... .Composition:Si , Fe, Ca ,S ,P ,C 2 Application:steel- making, iron casting 3.high quality ,low price 4.Manufacture price ... . Ferrosilicon is often used as deoxidizer in steel- making. 2. Ferrosilicon also can be used as alloy elements join agent, which is ... -47.0220.040.020.2Balance Ferro silicon of different specifications can be produced by our company. ferro silicon powder for steel making