Ferro Silicon Zirconium (FeSiZr) is a specialized, high-performance ferroalloy containing approximately 25-40% zirconium, 50-60% silicon, and iron, used as a powerful deoxidizer, desulfurizer, and denitrogenizer in steelmaking. It improves mechanical properties, reduces chill in cast iron, modifies non-metallic inclusions, and is crucial for producing high-grade stainless and alloy steels. contains 25−40% Zirconium (𝑍r) 50−60% Silicon (SI) with remainder Iron (Fe) though grades may vary