Description

The main components of this ferroalloy are magnesium, silicon, a percentage of alkaline earth elements, and other elements. Ferrosilicon magnesium (FeSiMg) is used primarily for the production of ductile cast iron with spheroidal graphite. FeSiMg is added to the ladle prior to pouring the molten metal, so that the magnesium content is absorbed by graphite nuclei during solidification. This changes the surface tension of graphite, allowing it to grow uniformly in all directions, thereby transforming its shape from flake to spherical. This modification results in significantly higher tensile strength and ductility in ductile iron compared to grey cast iron.

FeSiMg is available in three standard sizes:

• FeSiMg 1–5 mm
• FeSiMg 5–15 mm
• FeSiMg 5–30 mm

The most important and common applications of this ferroalloy:

• Increasing the tensile strength and ductility of ductile irons
• Production of stainless steels, carbon-containing steels, etc.
• Improving the machinability of manufactured parts

Chemical Composition of Ferrosilicon Magnesium: