Ferrosilicon
Ferrosilicon FeSi 72 and FeSi 75 from verified producers, for steel mills and iron foundries.
Ferrosilicon: typical specification
Indicative- FeSi 75
- 72% to 80% Si, typically 75%
- FeSi 72
- 72% Si minimum
- Aluminium
- 1.5% to 2% maximum, lower on request
- Carbon
- 0.2% maximum
- Sizing
- Typically 10 to 50 mm or 10 to 100 mm
- Packing
- Bulk bags of about 1 tonne
Typical specification for reference. The binding specification for each lot is the producer certificate of analysis and the contract.
Delivery terms
Documents supplied
Inspected at loading. Paid against documents.
Independent inspection by SGS, Bureau Veritas, Intertek or an equivalent accredited surveyor, with payment by documentary letter of credit.
About ferrosilicon
Ferrosilicon is an alloy of iron and silicon. Steel makers use it to remove oxygen, and iron foundries use it to inoculate cast iron. It is also used to make magnesium.
FeSi 75 is the most traded grade. Lower aluminium and special inoculant grades are available for foundries with tight limits.
Frequently asked questions
What is the difference between FeSi 72 and FeSi 75?
The silicon content. FeSi 75 is the standard grade for most steel makers. FeSi 72 is slightly cheaper and widely used in China and some foundries.
Do you supply foundry grades?
Yes. Tell us the aluminium, calcium and other limits you work to, and the sizing you need.
How is payment usually made?
By documentary letter of credit from a bank acceptable to the seller, with payment against shipping documents and the inspection certificate.
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