Ferro Silicon 75 Si: 75%min Size: 10-50mm, 10-100mm, 10-150mm, etc. Ferro Silicon 75Chemical analysis:1) Si 76-78%, ... 74-79%, Al 0.1%max, C 0.04%max, Ti 0.05%max, S 0.015%max,P 0.025%max ... , S 0.02%max,P 0.03%max, Ca 0.07%max;4) Si 74-79%, Al 0.1%max, C ... %, Al 0.02%max, C 0.02%max, Ti 0.04%max, S 0.02%max,P 0.03%max, Ca ... ,P 0.02%max, Ca 0.05%max, Mn 0.01%max, Cr 0.05%max;10) Si 75-60%, Al 0.01 ...