Ferro Silicon Suppliers in South America
We are committed to eliminating supply chain delays, quality fluctuations and high costs, providing reliable ferrosilicon to steel mills, foundries and aluminum industries in South America. High purity, customizable, stable supply of ferrosilicon factory. We are not just a FeSi provider, but your long-term partner.
Professional manufacturer and exporter with 30+ years of international experience:
Brazil: Santos, Itaguaí, Paranagua (steel, casting, metallurgy)
Argentina: Buenos Aires, Porto Blanca (metallurgy, machinery manufacturing)
Chile: San Antonio, Valparaiso (copper smelting, aluminum casting)
Peru: Callao, Matarani (mining, metallurgy)
Colombia: Cartagena, Buenaventura (building materials, casting, steel)
We understand regional tariffs, documentation requirements, logistics networks, and product standards required by steel mills, foundries, and importers in your region.
Zhen an Metallurgy
Ferrosilicon Suppliers
Zhen’an provides you with various types of ferrosilicon alloys: ferrosilicon 45/60/65/70/72/75, high carbon ferrosilicon, medium carbon ferrosilicon, low aluminum ferrosilicon, ferrosilicon slag, etc.
The content of some elements can be customized
Stable Quality Uniform Shape
Packaging: 1 Ton Jumbo Bag
High Silicon Content 40-70%
Free Sample
Issuance Product Test Reports

Product Overview Of Ferro Silicon
Ferrosilicon is an alloy of iron and silicon, often abbreviated as FeSi. Ferrosilicon is an iron-silicon alloy smelted in an electric furnace using coke, steel scraps and quartz (or silicon dioxide) as raw materials.
Ferrosilicon is often used as a deoxidizer in the steelmaking process and a reducing agent in ferroalloy production and the chemical industry. In the steelmaking industry, about 3-5 kg of 75% ferrosilicon is consumed for every ton of steel produced.
At the same time, ferrosilicon can be used as an alloying element additive and is widely used in low-alloy structural steel, spring steel, bearing steel, heat-resistant steel and electrical silicon steel.

Ferro Silicon block

Ferro Silicon Lumps

Ferro Silicon Granular

Silicon Ferro Particles

Silicon Ferro Powder
We supply ferrosilicon products in various physical states such as blocks, granules and powders to customers in the South America. In view of the high requirements for particle size uniformity in different steelmaking and casting processes, we can provide customized particle size services to ensure the best melting speed and reaction efficiency.
- Ordinary silicon iron (PG): Suitable for conventional steel deoxidation and alloying.
- Low-aluminium silicon iron (DL): Particularly suitable for preventing the formation of harmful Al₂O₃ and Al₂O₃-CaO inclusions in various steels, thereby improving steel purity.
- High-purity silicon iron (GC): Used for producing grain-oriented and non-grain-oriented electrical steel, as well as special steels with strict requirements for residal element content such as aluminium, titanium, and boron.
| Chemical composition(%) | ||||||||
| Model | Si | AI | Ca | Mn | Cr | P | S | C |
| ≥ | ≤ | |||||||
| FeSi75 | 75 | 1.5 | 1 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi72 | 72 | 2 | 1 | 0.5 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi70 | 70 | 2 | 1 | 0.6 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi65 | 65 | 2 | 1 | 0.7 | 0.5 | 0.04 | 0.02 | 0.2 |
| FeSi60 | 60 | 2 | 1 | 0.8 | 0.6 | 0.05 | 0.03 | 0.3 |
| FeSi45 | 40-47 | 2 | 1 | 0.7 | 0.5 | 0.04 | 0.02 | 0.2 |
Packaging: 1MT jumbo bags with inner PE lining (moisture-proof, desert-resistant)
Production Capacity: 3,000 MT / Month
Delivery Terms: FOB / CIF / CFR / DDP available
Remark:Other chemical composition and size can be supplied upon request.
Ferrosilicon Powder
| Model | Mn | P | S | C | Size(Mesh) |
| Range | Less Than Or Equal To | ||||
| FeSi70-72 | 0.4 | 0.035 | 0.02 | 0.3 | 0-425 |
| FeSi65 | 0.4 | 0.04 | 0.03 | 0.5 | 0-425 |
| FeSi60 | 0.4 | 0.04 | 0.04 | 0.6 | 0-425 |
| FeSi55 | 0.4 | 0.05 | 0.05 | 0.7 | 0-425 |
| FeSi45 | 0.4 | 0.05 | 0.06 | 0.9 | 0-425 |
| FeSiSi | Fe | P | S | C | Size(Mesh) |
| FeSi13-16 | >=82 | 0.05 | 0.05 | 1.3 | 200-325 |

- Alloys Cored Wire: Accurately control the amount of alloy material added, more advanced, details:>>>Alloys Cored Wire
- Ferroalloy: Supply a variety of ferroalloys, precise control of trace elements, details: >>>Ferroalloy
The silicon content in ferrosilicon is generally between 40% and 70%, which has a relatively high silicon content.
Ferrosilicon has a low iron content compared to other ferroalloys, typically between 15% and 30%.
The high silicon content and low iron content of ferrosilicon make it have good oxidation resistance and can be used at high temperature for a long time.
Ferrosilicon has good deoxidation performance, which can effectively remove oxides and impurities in molten steel.
Ferrosilicon is not easy to decompose and oxidize at high temperature, and has good stability.
The ferrosilicon provided by the ferro silicon supplier has good deoxidation performance and can effectively remove oxides and impurities in molten steel.
Ferrosilicon has a low coefficient of thermal expansion and can maintain a stable shape and size at high temperatures.
Ferro Silicon (FeSi) is an essential deoxidizer, alloying agent, and reducing agent widely used in metallurgy, foundries, and chemical industries. Below are the key application areas with specific, real-world examples:
Steelmaking industry:
High-purity deoxidation and desulfurization agent: Ferrosilicon is used in multiple stages such as initial melting, refining, and continuous casting, and is especially suitable for high value-added products such as low-alloy structural steel, high-strength steel, and stainless steel;
We provide low-aluminum and low-hydrogen ferrosilicon to customers in South America to help customers meet more stringent metallurgical standards.
Non-ferrous metal smelting:
High-efficiency reducing agent, ferrosilicon is an irreplaceable strong reducing agent in the extraction of magnesium metal, titanium sponge, and rare earth metals;
Especially in vacuum induction melting or electrolytic smelting supplementary reducing agent, the low impurity characteristics of ferrosilicon are particularly critical;
Our company can provide high-purity ferrosilicon (low P, low S, low C) on demand to meet high-end metallurgical processes.
Casting industry:
Ferrosilicon powder can be added as an inoculant to promote graphite spheroidization, reduce white cast structure, and improve casting toughness;
We support the provision of ferrosilicon powder with a specific particle size (0.2-1mm) to adapt to different casting processes.
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We provide you with high purity ferro silicon, silicon metal, silicon metal powder, all grades, large stock, spot good price. In addition, we also provide more metallurgical products, such as ferroalloys, ferrovanadium, vanadium pentoxide, electrolytic manganese flakes, electrolytic cobalt flakes, etc.
If you don’t find the products you are interested in, you can contact us directly! We are a supply chain company providing solutions to our customers, mainly doing metallurgical materials and metal products.
Note:Regarding above items, Feel free to contact me for an quotation if any purchase plan on pending, we try give you one more choice, one more support.
Ferro Silicon Export Data

What are customers have to say
Why do our customers trust us?
Factory Production Scale
We have 1 large submerged arc furnace + 4 12,500 KVA electric arc furnaces, with an annual production capacity of 100,000 tons, automatic crushing, screening, and dust-proof packaging lines. Supports monthly shipments of more than 500 tons.
Laboratory Grade Control
Internal spectrometer + carbon and sulfur analyzer, ICP-OES system for trace element analysis. Sampling is performed once every 3 tons of product, not just sampling according to orders.
Export To South America Many Times
10+ years of export experience to Brazil, Argentina and Peru. Full set of documents support: DUE/DI, Certificate of Origin (FTA) and INMETRO, SGS, Intertek certificates, MSDS, COA, etc., can assist with customs clearance.
Dedicated Support For South America
Payment methods suitable for your region: Wire transfer (30/70 or 20/80), LC for major customers (Santander, BBVA, Banco do Brasil). Support for documents and services in Spanish/Portuguese
Credibility, Professionalism And Flexibility
Quick response, customised particle size, stable supply, price advantage and multilingual support to help your business grow.
What services does Zhenan provide you?
In order to meet the needs of different customers, we accept the following customization:
Customized product specifications: According to the specific needs of customers, you can provide ferrosilisium products with different specifications, including customized services in terms of chemical composition, size, shape, surface treatment, etc.
Customized packaging requirements: According to the specific needs of customers, you can provide different types of packaging materials and packaging methods to ensure the safety and stability of products during transportation and storage.
Customized product quality: According to the specific needs of customers, you can provide different product quality requirements, including customized services in terms of chemical composition, physical properties, surface treatment, etc.
In order to ensure the quantity and quality of the products you receive, we pay more attention to the packaging:
High pressure resistance: Our packaging has sufficient pressure resistance to withstand the pressure and impact that may occur during stacking and transportation.
Anti-shock performance: Multi-layer packaging avoids possible shock and vibration during transportation, and protects the product from damage as much as possible.
Sealing performance: add a layer of waterproof film, which has sufficient sealing performance, and can prevent air, moisture and other substances from entering the packaging, affecting the quality of raw materials.
Easy to carry: We generally use large bags that are easy to lift for packaging, which is easier to carry.
Eco-friendly and sustainable: Our packaging materials are environmentally friendly, allowing you to recycle or dispose of them safely without polluting your local environment.
If you want free samples, the process is as follows:
Contact us: Tell us your needs and contact information through the message form on the website, or send an email to our email andy@zaferroalloy.com.
Communication details: Our professional sales staff will recommend the most suitable products for you according to your needs, and ask you if you need samples. If you need samples, we will provide them to you for free.
Shipping and receipt: After the sample is shipped, we will inform you and track the logistics information of the sample to ensure that you can receive it on time.
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The products provided by Zhenan Metallurgy can provide the following testing services through third-party testing agencies. These third-party testing services can provide independent, objective verification that products comply with relevant standards and regulations.
Appearance inspection: First of all, it is necessary to inspect the appearance of ferrosilicon, including indicators such as color, shape, and surface quality, as well as whether there are impurities, bubbles, and other defects.
Chemical composition analysis: By analyzing the chemical composition of ferrosilicon, its main component content and impurity content can be determined.
Metallographic structure analysis: Through metallographic sample preparation, corrosion, and microscope observation of ferrosilicon, determine its grain size, grain boundary distribution, internal inclusions and other structural properties, so as to judge whether its quality is qualified.
Physical performance test: Physical performance tests such as hardness and tensile tests can be carried out on ferrosilicon to evaluate whether its mechanical and physical properties meet the requirements.
Particle size analysis: The particle size of ferrosilicon has a certain influence on its use effect, and its particle size distribution can be determined by analyzing its particle size.

















































