Ferro Alloys Technical Catalogue
Comprehensive ferro alloy solutions and technical specifications for steel and foundry industry
Ferro Alloy Types
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Ferro Phosphorus
Ferro alloy used as phosphorus additive in steel and cast iron production.
Chemical Composition
| Element | Min (%) | Max (%) | Typical (%) |
|---|---|---|---|
| P | 23 | 26 | 24.5 |
| Si | 0 | 4.0 | 2.0 |
| C | 0 | 0.5 | 0.3 |
| Fe | - | - | Balance |
Key Features
- High phosphorus content (23-26% P)
- Low sulfur ratio
- Homogeneous grain structure
- Fast melting characteristic
- Stable chemical composition
Applications
- Phosphorus addition in steel production
- Cast iron metallurgy
- Special alloy manufacturing
- Phosphor bronze production
Technical Notes
- Must be stored in dry conditions.
- Dosing should be done with precision.
- Furnace temperature should be minimum 1500°C.
- Add gradually to minimize slag formation.
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Detailed Technical Information and Quotation
Contact our expert team for detailed technical documents, application recommendations, and custom size quotations regarding this product type.
Get Technical SupportWhat are ferroalloys?
Ferroalloys are master alloys of iron with a high share of an alloying element (Si, Mn, Cr, Mo, V...): e.g. FeSi75 (72–80% Si), high-carbon FeMn (75–80% Mn), FeCr. They are added to the melt in steelworks and foundries for deoxidation, alloying and inoculation. Using a ferroalloy instead of the pure element is cheaper and dissolves more readily in the melt.
Main ferroalloys and their roles
FeSi (ferrosilicon): the workhorse deoxidizer and Si source in steel; the 75% grade is standard and is also the base of foundry inoculants. FeMn (ferromanganese): deoxidation, sulphur fixing as MnS and Mn alloying; available in high/medium/low-carbon grades. FeCr (ferrochrome): the Cr source for stainless and alloy steels. FeSiMg (ferrosilicon magnesium): nodularizes graphite in ductile iron. Sizing (lump/granule) and addition point (furnace/ladle/cored wire) determine recovery; chemistry is verified by certificate.
Frequently Asked Questions
What is ferrosilicon used for?+
Deoxidation and silicon alloying in steel, and as the base of foundry inoculants. The standard grade is FeSi75 (72–80% Si).
What is ferromanganese used for?+
Deoxidation, fixing sulphur as MnS and manganese alloying. It comes in high-, medium- and low-carbon grades.
Why add a ferroalloy instead of the pure element?+
Lower cost, lower melting point and faster, more efficient dissolution in the melt.
What is FeSiMg (ferrosilicon magnesium)?+
A magnesium-carrying ferroalloy that converts graphite to spheroidal form (nodularizing) in ductile-iron production.
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