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Ferrosilicon (FeSi) is an alloy of iron and silicon used in steel production. This ferroalloy is used in steel production and casting, increasing hardness and deoxidizing properties and improving the strength and quality of iron steel products.
Typical Applications

Ferrosilicon has many uses in a variety of industries. Ferrosilicon helps prevent carbon loss from molten steel when used as a deoxidizer in steel production. It is also used in the manufacturing of other ferroalloys. It has uses in metallurgical industries with atomization, casting, melting, and heavy media separation reactions. Ferrosilicon can be used as a source of pure silicon in the electric industry, in the manufacturing of semiconductors, and to manufacture silicon copper in the chemical industry.

Packaging Options

Jars, pails, drums, multi-ply paper bags, bulk bags, and fiberboard containers


Ferro Silicon TSCA (SARA Title III) Status: Listed. Please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902.

Ferro Silicon Cas Number: 8049-17-0

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Specifications Available

  • FerroSilicon - Atomized Ferro Silicon 45% Powder
  • FerroSilicon - Lump- Ferro Silicon 75% 50-100mm, Irregular Shaped, Crushed
  • FerroSilicon - Milled Ferro Silicon 15%

Select Atomized Ferro Silicon 45% Powder

  • 48 Mesh and Finer
  • 65 Mesh and Finer
  • 100 Mesh and Finer
  • 200 Mesh and Finer

Select Lump- Ferro Silicon 75% 50-100mm, Irregular Shaped, Crushed

  • 2 x 3/8"
  • 4 x 2"

Select Milled Ferro Silicon 15%

  • 100 D
  • 150 D
  • 270 D
  • 48 D65 D
  • 270 F
  • 48 Hi D
  • 65 Hi D
  • 100 Hi D
  • 48 Mesh
  • 65 Mesh
  • 100 Mesh
  • 200 Mesh


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  • Millimeters
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