Ferro Silicon Magnesium (FeSiMg) is a specialized ferrosilicon alloy containing magnesium, calcium, manganese, and rare earth elements. It is primarily used as a nodularizer in the production of spheroidal graphite cast iron and ductile iron. Its main function is to transform flake graphite into spherical graphite, significantly enhancing the mechanical strength, ductility, and toughness of cast iron.

In addition to nodularization, FeSiMg also performs crucial roles in desulfurization, deoxidation, and degasification during the casting process. Among all the components, magnesium is the most critical, as it directly affects the nodularizing efficiency and determines the quality of the final ductile iron. Due to its reliable performance and consistent composition, ferro silicon magnesium is widely applied in ductile iron casting, automotive parts manufacturing, pipe production, and other metallurgical processes.

Chemical composition of ferro silicon magnesium

Applications of Ferro Silicon Magnesium

Ferro Silicon Magnesium (FeSiMg) is widely used in the steelmaking and foundry industries for its excellent nodularizing and refining properties. Its main applications include:

1. Nodularizer in Ductile Iron Production

FeSiMg transforms flake graphite into spheroidal graphite, significantly improving the mechanical properties of cast iron, such as tensile strength, ductility, and impact resistance.

2. Inoculant and Vermiculizer

It acts as an inoculant and vermiculizer in cast iron, promoting a more uniform graphite distribution and enhancing metallurgical quality.

3. Deoxidation and Desulfurization

With strong chemical activity, FeSiMg effectively removes oxygen and sulfur from molten metal, improving steel purity and structural integrity.

4. Alloying Agent

It is used as an alloying agent to adjust the composition of the steel and enhance certain characteristics, such as corrosion resistance and toughness.

5. Impurity Neutralization

FeSiMg helps neutralize harmful impurities like lead and arsenic by forming stable metallic compounds through solid solution alloying, further purifying the steel.

Why Choose Hongshun Ferro Silicon Magnesium?

1. Strategic Location Advantage

Hongshun Ferroalloy is located in Anyang City, a major production hub for ferroalloys in China. This region concentrates numerous ferroalloy manufacturers, offering customers a wide selection of products, supported by favorable local policies and efficient transportation networks. As a result, our prices remain highly competitive.

2. Specialized Production

Hongshun specializes in producing high-quality nodulizers, including Ferro Silicon Magnesium with Mg content of 3–8%, 5–8%, and 7–8%. Common particle sizes include 5–30mm and 5–25mm. We also support customization of chemical composition and granularity to meet diverse customer needs.

3. Strong Export Experience

With extensive export experience, Hongshun maintains long-term partnerships with reliable freight forwarders to ensure safe and timely delivery. Our professional foreign trade team offers 24/7 service and timely support throughout the entire purchasing process.

4. Quality Assurance

We provide factory inspection reports with every shipment and we can assist with third-party inspections through organizations such as SGS, BV, and CCIC to guarantee product quality and customer confidence.