Ferro Silicon Alloy Supplier

We eliminate supply chain delays, quality fluctuations, and high costs while providing reliable ferrosilicon for steel mills, foundries, and aluminum industries worldwide. Our cost-effective solutions serve metallurgical traders across four major global markets.

Professional manufacturer and exporter with 30+ years of international experience:

Middle East: Saudi Arabia, UAE, Qatar, Kuwait, Oman, Jordan, Turkey
Europe: Germany, Netherlands, Italy, Poland, Turkey, UK
South America: Brazil, Argentina, Chile, Colombia, Peru
Asia-Pacific: Japan, South Korea, Thailand, Vietnam
We understand regional tariffs, documentation requirements, logistics networks, and product standards required by steel mills, foundries, and importers in your region.

  • Compliance Export: Support Certificates Of Origin, COO, RoHS, REACH, DSG/BV And Other Documents
  • Long-term Cooperation Model: Support Monthly/quarterly Batch Supply, Quarterly Average Price, Stable Price, Contract Guarante
  • Multilingual Account Manager Service In English/French/Spanish/Arabic/Korean
  • Ultra High Purity Si 72%-80% | Al<1.5% | C<0.2% | Accurately Meet ASTM/ISO
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

Contact Us

Product Overview Of Ferro Silicon

Our ferrosilicon products are produced strictly in accordance with international standards, and the chemical composition is precisely controlled. The silicon content can be precisely adjusted according to customer needs, and the content of other impurity elements such as iron, aluminum, and calcium are controlled at extremely low levels to ensure that the products have excellent metallurgical properties and chemical stability. Whether it is deoxidation and alloying in the steelmaking process or inoculation treatment in the foundry industry, it can play an excellent role and effectively improve product quality and production efficiency.

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.

Silicon Ferro Blocks

Ferro Silicon block

Silicon Ferro Lumps

Ferro Silicon Lumps

Ferro Silicon Granular

Ferro Silicon Granular

Silicon Ferro Particles

Silicon Ferro Particles

Silicon Ferro Powder

Silicon Ferro Powder

We supply ferrosilicon products in various physical states such as blocks, granules and powders to customers in the Global. 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(%)
ModelSiAICaMnCrPSC
FeSi75751.510.50.50.040.020.2
FeSi7272210.50.50.040.020.2
FeSi7070210.60.50.040.020.2
FeSi6565210.70.50.040.020.2
FeSi6060210.80.60.050.030.3
FeSi4540-47210.70.50.040.020.2

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

ModelMnPSCSize(Mesh)
RangeLess Than Or Equal To
FeSi70-720.40.0350.020.30-425
FeSi650.40.040.030.50-425
FeSi600.40.040.040.60-425
FeSi550.40.050.050.70-425
FeSi450.40.050.060.90-425
FeSiSiFePSCSize(Mesh)
FeSi13-16>=820.050.051.3200-325
Ferrosilicon-size
  • 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:

Why Clients Prefer Our Ferro Silicon

Custom sizing (10–50mm, 10–100mm, 3–10mm for magnesium)

Stable chemical composition (FeSi 75%, 72%, low Al/P/S)

In the steel production process, ferrosilicon is often added to molten steel to remove oxygen and prevent the steel from forming pores or cracks during cooling. It can also be used as an alloying element to increase the strength and hardness of the steel.

Actual case:

Customer: Large steel plant in Turkey

Application scenario: Used for deoxidation operation in electric furnace steelmaking, using FeSi 75%, particle size 10-50mm

Purchase mode: Monthly purchase of 300 tons, annual contract system

Effect feedback: Compared with the low-grade FeSi used before, the deoxidation efficiency is increased by about 12%, and the composition of molten steel is more stable

In the production of ductile iron and gray cast iron, ferrosilicon can effectively promote graphite spheroidization, improve the mechanical properties and crack resistance of castings, and increase the yield rate.

Actual case:

Customer: Foundry in Sao Paulo, Brazil

Application scenario: Used for inoculation treatment of gray cast iron products, using FeSi micropowder (particle size 1-3mm)

Procurement method: 5 tons of trial order, and then converted to quarterly fixed procurement after successful trial production

Actual results: The hardness and impact toughness of castings are increased by more than 10%, and the scrap rate is reduced by 30%

In the process of producing magnesium metal by the “Pijeng process”, ferrosilicon is used as the main reducing agent to reduce the oxygen in magnesite to produce pure magnesium metal.

Actual case:

Customer: Oman magnesium smelting company

Application scenario: Used for high-temperature reduction reaction of the Pidgeon process, using FeSi 72% powder (particle size 0-1mm)

Delivery mode: Annual long-term cooperation, 60 tons shipped per month as planned

Customer feedback: Fast delivery near the Middle East port, high powder activity, stable reduction efficiency

Ferrosilicon powder is used as a reducing agent or intermediate raw material for some silicon-based chemicals (such as silicates, silicone oil, silicone rubber, etc.), with good economy and reaction efficiency.

Actual Case:

Customer: A chemical plant in South Korea (focusing on silicone rubber manufacturing)

Application scenario: Used as a catalytic reduction auxiliary agent in the synthesis of silicon-based materials

Products used: FeSi microparticle powder 1–3mm, requiring extremely low impurities (Al < 1%, P < 0.03%)

Effect feedback: After replacing foreign imported raw materials, the reaction rate is increased and the cost is saved by about 8%

In some high-performance alloys or powder metallurgy products, ferrosilicon is used as a reducing agent and auxiliary alloy material, especially in the fields of electronics, military industry, and high-temperature alloys.

Actual Case:

Customer: A Japanese powder metallurgy processing plant (serving the semiconductor industry)

Application scenario: For alloy structure strengthening in electronic packaging components

Product requirements: Ultrafine FeSi powder, particle size D50<100μm, high purity requirements

Customer feedback: Precise powder particle size distribution, stable melting point control, greatly improving sintering consistency

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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.

Why choose Zhen An Metallurgy as your long-term partner?

30 years of production and sales experience:

Zhenan Metallurgy is located in Anyang City, Henan Province, China. It has 30 years of production experience and can produce high-quality fe si according to user requirements.

Customized according to customer needs:

Zhenan Metallurgy has its own metallurgical experts, and the chemical composition, particle size and packaging of ferrosilicon can be customized according to customer requirements.

Worry-free delivery:

The annual output of Zhen’an metallurgical fe Si is 1.5 million tons, and the spot inventory is 200,000 tons. The supply is stable and the delivery is timely.

Free samples:

Zhenan Metallurgical will give you the greatest support, and provide free ferro silicio samples.

Support third-party testing:

Zhenan Metallurgical has a strict quality control system. ferro silicio has been inspected more than 3 times before leaving the factory. At the same time, we accept third-party inspections such as SGS and BV to provide you with the greatest guarantee.

Manufacturer’s strength display:

Our factory covers an area of 30,000 square meters, with a full set of modern production equipment, two large-scale production bases such as hydrometallurgy, two key laboratories and a metallurgical material testing center with 16 senior researchers.

30000(m2)

Our factory covering an area of 30,000 square meters

1500000(Ton)

Annual production and sales more than 1,500,000 tons.

Professional team to provide you with better service

Zhen An Metallurgy has a high-quality talent team integrating sales, production and R&D, including 16 senior researchers, 28 professional engineers, 35 international sales personnel, 10 senior operation personnel, and more than 300 production technicians.

Zhen An metallurgical certificate display

Our products have been exported to 78 countries, and many regular customers have visited our company and factory and placed multiple orders. After one cooperation, trust has been established with us, and customers will place orders multiple times, and some will introduce new customers to us.

Deeply cultivate key global markets

We are your trusted strategic partner in metallurgical ferrosilicon. We are not only a manufacturer of ferrosilicon alloys, but also an enabler of regional industrial development.

For-Steelmaking

Stable supply and price advantages

Annual production capacity of 300,000 tons, the world’s top 5 suppliers, can stably undertake long-term supply of Saudi Arabia’s large steel mills and aluminum smelting projects

Production costs are 1.5% lower than the industry average, supporting long-term fixed-price contracts at FOB Jebel Ali Port.

Standard 5,000 tons of spot goods, fast delivery, no impact on production and use

  • Steel deoxidation: Provide low-cost deoxidizers for the production of rebar and H-beam, reducing the oxygen content to below 0.005%.
  • Refractory materials: Customized low-aluminum ferrosilicon (Al≤1.0%) for the manufacture of high-temperature kiln linings in the Middle East.
  • Casting filling: 10-50mm particle size products, suitable for automotive parts foundries in the UAE and Qatar.
  • FeSi75-A (low aluminum) – Si 74-80%, Al≤1.0% – SGS Middle East Branch Certification
  • FeSi65-C (casting grade) – Si 60-68%, C≤0.2%
Aluminum smelting

Environmental compliance and technology improvement

Aluminum content can be stably controlled ≤0.5% (industry standard ≤2.0%)
Customized ferrosilicon for magnesium reduction (Mg recovery rate increased by 18%), used in the aluminum industry.

  • New energy materials: supply silicon negative electrode material precursors to Swedish battery factories.
  • High-end bearing steel: Cooperate with ThyssenKrupp of Germany to increase fatigue life by 40% through ferrosilicon microalloying.
  • Automobile lightweighting: Supply low-density ferrosilicon to Italy, helping to reduce the weight of aluminum alloy wheels by 15%.
  • FeSi75-ECO-microwave drying process (water content ≤0.3%)
  • FeSi90-ULTRA-nitrogen protection smelting (nitrogen content ≤50ppm)
ductile iron

Flexible service and localization

Support 1-20 tons of zero-order shipments, fast delivery to inland factories in Brazil/Peru/Chile

The Spanish customer service team provides 7×12 hours of technical consultation, covering the South American time zone.

Container mixed loading service, can simultaneously ship ferrosilicon, ferromanganese, ferrochrome and other alloys.

  1. Steel mill deoxidizer – an electric furnace steel plant in Lima, Peru

Products used: FeSi 75%, particle size 10-50mm

Effect: stable deoxidation efficiency, improved molten steel fluidity, and reduced defective rate

  1. Ductile iron inoculation treatment – an automobile parts foundry in Sao Paulo, Brazil

Products used: powdered FeSi (particle size 0-3mm)

Effect: increased casting strength, denser structure, and better processing performance

  1. Ferroalloy production raw materials – a metal smelting company in Chile

Products used: FeSi 72%, economical pellets

Control reaction heat stability, more consistent product composition

  • FeSi 75-the most commonly used model, cost-effective, used in steel mills
  • FeSi 72-for cost-sensitive customers, reliable deoxidation ability
  • Powdered ferrosilicon FeSi-used by foundries or powder metallurgy customers, suitable for fine feeding
  • Medium-grained ferrosilicon particles-fast reaction speed, often used in electric furnace automatic feeding system
For-Steelmaking

Fast delivery and cost-effective

Supply low aluminum ferrosilicon (Al≤1.2%) to Indonesia to improve rail corrosion resistance.
Malay/Vietnamese/Thai customer service team, providing localized technical documentation and business negotiation support.
Optional, 5kg/10kg vacuum small package. Double-layer moisture-proof bag

  • Electrical steel manufacturing: A large transformer factory in Thailand – Use FeSi75-JP to increase magnetic permeability by 5%
  • Stainless steel castings: Vietnamese foundry – Microalloying to improve casting strength and corrosion resistance
  • Deoxidizer for submerged arc furnace: Thai Steel Group – Use FeSi80-KR to achieve higher reaction efficiency and reduce slag generation
  • FeSi75-JP – P≤0.025%, S≤0.015%
  • FeSi80-KR – Al≤0.8%, Ca≤0.3%
  • FeSi70-TH – C≤0.1%, Ti≤0.2%
special-steel

Precision manufacturing and supply chain resilience

FeSi75: P ≤ 0.03%, S ≤ 0.02%
Optional high-purity models (P ≤ 0.025%, S ≤ 0.015%)
Comply with national standards such as JIS G1211, KS D3515
Provide bilingual technical information, COA, RoHS, REACH, ISO documen

  • General structural steel: Provide FeSi75-JP as a standard deoxidizer, widely used in bar and profile production lines. Stable deoxidation efficiency, good steel cleanliness, easy continuous casting operation
  • Foundry industry: Supply 3-10mm particle size FeSi to casting plants to improve casting structure. Reduced shrinkage, customer feedback shows that product qualification rate has increased
  • FeSi75-JP-P≤0.025%, S≤0.015%
  • FeSi80-KR-Ca≤0.3%, Al≤0.8%

Ferro Silicon Export Data

Shipped to during the quarter
Repurchase rate from customers
Current spot stock
Reducing smelting costs
Silicon Ferro Factory

What are customers have to say

Providing high-quality raw materials for metallurgical industry

Why do our customers trust us?

Our ferrosilicon is known for its superior purity and consistency, offers low aluminum options, and can be customized in size. Whether it is used for steelmaking, casting, alloys, magnesium smelting, our products can provide you with reliable performance and cost-effective solutions. Our strong logistics network covers major markets in Global, ensuring on-time delivery.

Credibility, Professionalism And Flexibility

Quick response, customised particle size, stable supply, price advantage and multilingual support to help your business grow.

  • High-Purity Ferro Silicon. Reliable Supply. Strategic Support.
  • FeSi 75% / 72%, Particle Size 10–50mm / 10–100mm / 3–10mm
  • FeSi with low Al, P, and S. We don’t just offer competitive prices — we ensure responsive service, document support (SGS, CO, Halal), and long-term partnership.Every shipment comes with SGS & COA. On-time. Every time.

  • SGS + COO + COA + MSDS + REACH + RoHS and other certification documents
  • From quality control and flexible specs to fast response and full export documents. Stable delivery, competitive pricing, and technical support for your production line.

  • FOB / CIF / DDP Options, Fast Response & Stable Supply
  • We supply high-purity Ferro Silicon with custom sizing, stable monthly delivery, and all certifications ready. Your reliable supplier from China.

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.

Ask about custom services

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.

Learn about our packaging

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.

China ferro silicon manufacturers provide you with the best price of ferro silicon alloy, ferro silicon price today has a discount, contact to get it~

Get a free sample

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.

Ask about third-party testing services
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