Ferro Silicon

Take Your Business to the Next Level with Wholesale Ferro Silicon from Anyang Kongfang

As a professional Ferro Silicon supplier, our company was established in 2006 with more than 12 years of export experience. In the fierce market competition, our advantages are reflected in:

Strong Team

Our factory covers an area of about 30,000 square meters and currently has more than 140 employees, including more than 15 professional and technical personnel of various types. They can provide you with reliable technical support and considerate services in every aspect of cooperation.

Broad Market

Kongfang products are sold both domestically and abroad. It has exported ferro alloys to more than 20 countries such as Netherlands, Italy, South Korea, Japan, Russia, India, Turkey, Pakistan, Indonesia, Vietnam, Myanmar etc. thus earning a favorable reputation internationally.

Wide Product Range

Explore our extensive product range, featuring high-quality alloys and metals such as Ferro silicon, Silicon manganese, Silicon carbon alloy, Ferro chrome, Silicon metal, Ferro manganese, Silicon carbide, Calcium silicon, Nitrided Ferrosilicon, Silicon slag, Ferro silicon barium, Ferro boron, Manganese metal, Electrolytic manganese metal, and Calcium silicon cored wire etc. Our diverse selection ensures that we meet the diverse needs of our customers across various industries.

Professional Service

Our professional sales team can provide first-class services in addition to 100% quality assurance for customers. We also provide good after-sales service to handle customer complaints and solve problems for customers. We will be responsible for any quality issues.

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Why the nitrided ferrochrome and low carbon ferrochrome look different

Brief Introduction to Ferro Silicon

Ferro silicon is an alloy of iron and silicon with a typical silicon content by weight of 15–90%. It contains a high proportion of iron silicides. Ferro silicon is produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron or millscale. The usual formulations on the market are ferrosilicons with 15%, 45%, 75%, and 90% silicon. The remainder is iron, with about 2% consisting of other elements like aluminium and calcium.

How is Ferro Silicon Made?

The most popular grade of ferro silicon contains 75 wt% silicon ('FeSi75'), but the amount can range from 15–90 wt% depending on the application.The highest-quality ferro silicon is made in an electric arc furnace by reducing silica with coke in the presence of iron (usually derived steel scrap or iron ore). The ferro silicon usually takes the form of shiny, metallic-grey lumps, but is also available as pre-formed briquettes.

Ferro Chrome and Utilize of Ferro Chrome

Features of Our Ferro Silicon

Clean and Consistent

Our ferro silicon is one of the cleanest forms of ferro silicon, helping you meet stringent steel composition requirements while simplifying production and reducing energy costs. Thanks to our strong quality management, our ferro silicon is highly consistent in purity and size grading from batch to batch. This means you can eliminate concerns about property changes, unpredictable dissolution times, or variable downstream alloying requirements.

Environmental Friendly

The production of ferro silicon alloys uses carbon to remove oxygen from silicon dioxide, releasing carbon dioxide in the process. The high temperatures our furnaces require also consume a lot of energy. But we are committed to doing everything we can to reduce our CO2 footprint by increasing our use of renewable carbon and switching to renewable energy.

Various Specifications

In addition to offering Ferro Silicon 65, Iron Silicon, we also offer a range of high-quality ferro silicon components to provide the best results for high-performance steel grades. You will easily find the Ferro Silicon you want in this series of products.

Advantages of Ferro Silicon

Deoxidation and Desulfurization
Ferro silicon is commonly used as a deoxidizer in steelmaking processes. It reacts with oxygen in the molten steel to form silicon dioxide (SiO2) and helps remove impurities like oxygen and sulfur from the steel. This results in cleaner and more refined steel with improved mechanical properties.

Grain Refinement
Ferro silicon promotes the formation of fine grains during solidification, which can lead to improved mechanical properties and better surface finish of the steel product.

Increased Strength and Hardness
By adding ferro silicon to steel, its strength and hardness are enhanced, making it more suitable for structural applications that require high strength and wear resistance.

Improved Electrical and Magnetic Properties
Ferro silicon can enhance the electrical and magnetic properties of steel, making it useful for electrical transformers, motors, and other electromagnetic devices.

Heat Resistance
The addition of ferro silicon improves the heat resistance of steel, making it suitable for applications involving high temperatures, such as in furnace parts and heat exchangers.

Corrosion Resistance
Ferro silicon can enhance the corrosion resistance of steel, making it more resistant to rust and environmental degradation, particularly in harsh or corrosive environments.

Cost-effective Alloying Element
Ferro silicon is a relatively inexpensive alloying element, making it an economical choice for enhancing the properties of steel without significantly increasing production costs.

Control of Microstructure
The presence of silicon in ferro silicon allows for better control of the steel's microstructure, resulting in improved mechanical properties and overall performance.

Ferro Silicon Parameters (Take Ferro Silicon 72 as an Example)

FeSi72	Si	Al	Ca	Mn	Cr	P	S	C
	≤
	72	1.5	1	0.5	0.5	0.04	0.02	0.2

Typical Applications of Ferro Silicon

There are seven types of iron and manganese, as follows:

Deoxidizer

In order to ensure the quality of steel, the molten steel must be deoxidized in the last round of steelmaking. Silicon has a great affinity for oxygen, so ferrosilicon is an ideal deoxidizer. Ferrosilicon reacts not only with oxygen but also with sulfur, so it can remove sulfur from molten steel. Ferrosilicon with a silicon content of 45%-90% is used in the steel industry. Ferrosilicon with a silicon content of 75% is the most widely used in the steel industry.

Alloying Agent

Adding certain amounts of silicon significantly increases the strength, hardness and elasticity of steel. Therefore, ferrosilicon is used as an alloying agent for smelting structural steel (Si 2.81-4.8%), tool steel (Si 0.30-1.8%), spring steel (Si0.40-2.8%), and silicon steel for transformers (Si2.81 - 4.8%). As an alloying agent, ferrosilicon can improve the quality of steel, reduce costs, and effectively save iron.

Inoculant and Nodulizer

Ferrosilicon is used as inoculant and nodulizer in the cast iron industry. Cast iron is cheaper than steel, but its mechanical properties are close to those of steel and it is more impact-resistant than steel. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbides in the iron and promote the precipitation and spheroidization of graphite.

Smelting Magnesium Metal

Ferrosilicon is used in the smelting process of magnesium ingots. Magnesium in CaO.MgO is replaced. Each ton of magnesium metal requires approximately 1.2 tons of ferrosilicon.

Used to Produce Low Aluminum Steel

Compared with ordinary ferro silicon, low aluminum ferro silicon is used in the steel industry to produce low aluminum steel. In the production process of high carbon steel, the use of low aluminum ferrosilicon can prevent nozzle clogging during continuous casting. Reducing the aluminum content will help avoid surface defects, especially those associated with mirror stainless steel. For the production of tire cord, content control is also important, and manufacturers recommend the use of low-aluminum ferrosilicon.

Used for Sorting Iron Ore

Atomized ferrosilicon powder can be used in the mineral processing industry, mainly for the separation of iron ore. Heavy-medium ferro silicon is a specially smelted ferrosilicon alloy with the characteristics of oxidation resistance, high hardness and strong magnetism. Compared with other heavy media such as magnetite, ferro silicon has the advantages of high hardness and high specific gravity. It can be returned for reuse.

Coating of Welding Rod

In arc welding, ferro silicon is used as a coating for welding rods. Atomized ferro silicon powder is generally made of ferro silicon with a silicon content of about 45%, which is processed through a water atomization process. The addition of atomized ferro silicon powder is more conducive to improving the deoxidation of the electrode and reducing oxygen interference during welding. Atomized ferro silicon powder is often used as a welding skin auxiliary material and is generally used as a deoxidizer in welding.

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Frequently Asked Questions

Q: What is the use of ferrosilicon?

A: Ferrosilicon is also used in the manufacture of silicon, corrosion- and high-temperature-resistant iron-silicon alloys, and silicon steel for the cores of electric motors and transformers. In the manufacture of cast iron, ferrosilicon is used to incubate iron to accelerate graphitization.

Q: What is the difference between silicon and ferrosilicon?

A: Silicon metal is used in the production of aluminum alloys and as a raw material for the manufacture of silicone and polysilicon, while for ferrosilicon it is used in steel, iron castings and magnesium.

Q: Is ferrosilicon dangerous?

A: Contact of ferrosilicon with water can lead to the formation of toxic gases. The formation of toxic gases in unventilated and moist transport or storage areas can be hazardous to human health, resulting in poisoning of persons.

Q: Is ferrosilicon magnetic?

A: Yes, ferrosilicon has good high specific gravity and high magnetic properties, and it is easy to magnetically recover.

Q: What are the raw materials for producing ferrosilicon?

A: The main raw materials for ferrosilicon production are quartz, charcoal and iron oxide scale. Quartz contains chemical gangue in addition to the surface clay layer and gravel of earth, which contributes to the formation of slag.

Q: What are the by-products of the silicon and ferrosilicon industry?

A: Silica fume (SF) is a by-product of the industrial smelting of silicon and ferrosilicon. The reduction of high-purity quartz to silicon at temperatures up to 2000 degrees Celsius produces SiO2 vapor, which oxidizes in the cryogenic zone and condenses into tiny particles consisting of amorphous silica.

Q: Is ferrosilicon flammable?

A: Ferrosilicon is an odorless, crystalline solid metal. It is flammable and can react explosively with oxidizing substances.

Q: What is the use of ferrosilicon in metallurgy?

A: The chemical affinity between silicon and oxygen is great. Therefore, ferrosilicon is a strong deoxidizer that plays a role in precipitation and diffusion in steelmaking. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of the steel.

Q: What is ferro silicon barium used for?

A: Silicon Barium Inoculant is an artificial composite ferro alloys product, which is used in steelmaking as a deoxidizer, desulfurizer and casting inoculant. It can improve the performance of the product.

Q: Is ferro silicon a metal?

A: Ferrosilicon (FeSi) is an alloy of iron and silicon that is principally used in steelmaking for deoxidation and as an alloying component.

Q: What is the origin of ferrosilicon?

A: Ferrosilicon is produced by reduction of silica or sand with coke in the presence of iron. Typical sources of iron are scrap iron, millscale. Ferrosilicons with silicon content up to about 15% are made in blast furnaces lined with acid fire bricks.

Q: What type of ferrosilicon is best for heavy media separation of ores in the 2.5 to 4.0 range?

A: Ferrosilicon with a silicon content of 14% to 16% has been widely recognized as the most suitable media for heavy media separation of ores with specific gravity in the range of 2.5 to 4.0.

Q: What is the bulk density of ferro silicon?

A: Bulk density: 1,389 - 2,083 (1,111 to 1,583 for briquettes) kg/m3.

Q: What is the solubility of ferrosilicon?

A: The dust of Fe-Si is soluble in water with the solubility of 0.015 milli grams Si per litre at pH of 5.8-5-9 and temperature of 20 deg C.

We're professional ferro silicon manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy high-grade ferro silicon at competitive price from our factory.

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