... special ferro alloy, etc. Ferro Silicon Chemical analysis:1>. Si 76-78%, Al 0.1%max, C 0.05% ... max, Ni 0.08%max, V 0.05%max;2>. Si 74-79%, Al 0.1%max, C 0.04 ... V 0.05%max;3>. Si 75-60%, Al 0.5%max, C 0.2%max, S 0.02%max, ... P 0.03%max, Ca 0.07%max;4>. Si 74-79%, ... 03%max, Zr 0.03%max;5>. Si 75-60%, Al 0.2%max, C 0.015%max, Ti 0 ... Mn 0.01%max, Cr 0.05%max;10>. Si 75-60%, Al 0.01%max, C 0.015 ...