Classification of ferrosilicon 75 72 65
Ferrosilicon 75, generally containing 75% silicon, has low carbon, phosphorus and sulfur content,
Ferrosilicon 72, usually containing 72% silicon, with medium carbon, sulfur and phosphorus content.
Ferrosilicon 65, containing 65% silicon, has relatively high carbon, sulfur and phosphorus content.
ferro silicon
Iron Silicon