Factory direct silicon manganese at competitive prices. SiMn 60/14, 65/17, 63/25 grades for steel deoxidation and alloying. Factory direct pricing with MOQ from 20MT, 7-day production lead time.

Si:60% min, Mn:14% min / low P,S | 10-60mm lump

Si:60% min, Mn:25% min / C:1.5% max | lump

Si 65% / Mn 17-20% / low Al, Ti

Si 63-67% / Mn 25% min, low C (0.2% max)

Si 60% / Mn 28% base, tight P control

Si 65% / Mn 25% min, high purity

Bespoke ferrosilicon manganese (FeSiMn) with adjustable Si/Mn ratios, carbon content, and physical specifications for your steelmaking process
| Grade | Mn (%) | Si (%) | C (%) | P (%) | S (%) | Typical use |
|---|---|---|---|---|---|---|
| Silicon Manganese 60/14 | 60.0-63.0 | 14.0-16.0 | ≤2.5 | ≤0.30 | ≤0.05 | Carbon steel, rebar and general engineering steel |
| Silicon Manganese 60/25 | 60.0-63.0 | 24.0-26.0 | ≤0.5 | ≤0.30 | ≤0.05 | Steelmaking deoxidation, alloying and foundry |
| Silicon Manganese 65/17 | 65.0-68.0 | 17.0-19.0 | ≤1.8 | ≤0.25 | ≤0.04 | Steel deoxidation and alloying |
| Silicon Manganese 63/25 | 63.0-66.0 | 24.0-26.0 | ≤0.5 | ≤0.25 | ≤0.04 | Steelmaking deoxidation and alloying |
| Silicon Manganese 60/28 | 60.0-63.0 | 27.0-29.0 | ≤0.5 | ≤0.30 | ≤0.05 | Steelmaking deoxidation and foundry use |
| Silicon Manganese 65/25 | 65.0-68.0 | 24.0-26.0 | ≤0.5 | ≤0.25 | ≤0.04 | Specialty alloy, spring and electrical steel |
| Custom Silicon Manganese | On request | On request | On request | On request | On request | Tailored Mn/Si ratio and particle size |
Explore our quality control process, production facilities, and customer interactions
Silicon manganese (SiMn) is a ferroalloy of manganese, silicon and iron, with grades from SiMn 60/14 up to 65/25. It is the standard combined deoxidiser and alloying addition in steelmaking.
Bright Alloys supplies SiMn 60/14, 60/25, 60/28, 63/25, 65/17 and 65/25 in lumps and powder, with low-carbon grades for steels that cannot tolerate carbon pickup.
SiMn removes oxygen and adds manganese and silicon together, which is why it is charged in most carbon and low-alloy steel heats.
SiMn 60/14 and 65/17 are standard additions for reinforcing bar and structural sections produced to yield-strength specifications.
The 25-28% silicon grades suit spring, electrical and wear-resistant steels, where a higher silicon level is required with low carbon.
Our metallurgical experts provide application guidance and technical support for optimal alloy selection and usage.
We develop tailored alloy compositions to meet specific customer requirements and application needs.
Efficient global supply chain management ensuring timely delivery and optimal packaging for product integrity.
We specialize in custom alloy formulations. Contact us with your specific requirements for a tailored solution.
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