Ferro Silicon Manganese industrial chemical supplied by The Moonarc Group — image 1
Industrial chemical

Ferro Silicon Manganese

CAS Number
12743-28-1
Formula
FeSiMn
Mol. Weight
Variable (Alloy)

Ferro Silicon Manganese (FeSiMn) is a vital ferroalloy composed primarily of manganese, silicon, and iron. It is produced by smelting manganese ore, quartz, and coke in electric arc furnaces. In the steelmaking process, it serves a dual purpose: it acts as a potent deoxidizer, reacting with dissolved oxygen to form stable silicates, and it serves as an alloying element to enhance the mechanical properties of the steel. Moonarc Chemicals supplies high-purity SiMn that ensures low carbon and phosphorus levels, essential for high-quality carbon steel, stainless steel, and alloy steel production.

Applications

  • Primary deoxidizer and desulfurizer in carbon and stainless steel production.
  • Alloying agent to improve hardness, yield strength, and wear resistance in structural steel.
  • Additive in the production of high-manganese steel and specialized welding electrodes.
  • Precursor in the production of low-carbon ferromanganese.
  • Used in foundries for the manufacture of cast iron to improve graphite morphology.

Industries served

  • Iron and Steel Manufacturing
  • Automotive Component Casting
  • Construction and Infrastructure
  • Welding and Fabrication
  • Mining and Heavy Machinery

Key benefits

  • Dual-action efficiency: Provides both Silicon and Manganese in a single balanced addition.
  • Superior Deoxidation: Forms more stable and easily removable manganese silicates compared to individual alloys.
  • Cost-Effective: Reduces the need for separate Silicomanganese and Ferrosilicon additions.
  • Purity Control: Low carbon and phosphorus content minimizes unwanted impurities in the final melt.
  • Thermal Stability: Consistent melting point ensures uniform distribution in the ladle.

Technical specifications

Manganese (Mn) Content60% - 75% (Standard Grade)
Silicon (Si) Content14% - 25%
Carbon (C) Content0.1% - 2.5% (Max)
Phosphorus (P) Content0.1% - 0.3% (Max)
Sulfur (S) Content0.03% - 0.05% (Max)
Moisture Content< 0.5%
Standard Sizing10-50mm / 10-100mm

Storage

Store in a cool, dry, well-ventilated warehouse. Keep containers tightly closed. Protect from moisture and direct contact with water to prevent gas evolution. Store away from acids and strong oxidizers. Ensure flooring is non-combustible.

Handling

Handle in a well-ventilated area. Use mechanical lifting equipment for bulk bags. Avoid generating dust, as fine particles may form explosive mixtures with air. Wear appropriate PPE, including gloves and safety goggles. Avoid contact with acids and oxidizing agents.

Transport

Not regulated as a dangerous good for transport (ADR/RID, IMDG, IATA) in solid lump form. However, if in powder/fine form, check for Class 4.3 (Dangerous when wet) classification. Ensure cargo is covered and protected from rain during transit.

Packaging options

1000kg Big Bags (FIBC) · 1250kg Big Bags (FIBC) · Bulk in containers (20-25 MT) · Steel drums (for specific crushed grades)

Frequently asked questions

Documents

Download supplier documentation. AI-generated drafts are reviewed and approved by our technical team before publication.

TDS
Technical Data Sheet
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SDS / MSDS
Safety Data Sheet
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Brochure
Product Brochure

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