Ferro silicon alloy, often simply referred to as "ferrosilicon," is an alloy of iron (Fe) and silicon (Si). It typically contains a high proportion of silicon, usually around 70% to 75%, along with varying amounts of iron and other elements like aluminum and calcium. The exact composition may vary depending on the specific application and manufacturer.

Common specifications

Ferro Silicon 65

Silicon content is 65.0%-72.0%, aluminum content is not more than 0.6%, calcium content is not more than 0.5%, phosphorus content is not more than 0.04%, sulfur content is not more than 0.02%, and there is no clear upper limit for manganese content.

Ferro Silicon 70

Ferrosilicon 70 does not clearly list a separate grade and corresponding composition in the above standards, but it is generally understood that its silicon content is about 70%, and the content of other impurity elements can refer to the range of similar grades such as Ferrosilicon 72.

Ferro Silicon 72

Silicon content is 72.0%-80.0%, aluminum content has a variety of specifications, such as not more than 0.5%, not more than 1.0%, not more than 1.5%, not more than 2.0%, etc., calcium content is generally not more than 0.5%, phosphorus content is not more than 0.04%, sulfur content is not more than 0.02%, and there is no clear upper limit for manganese content.

Ferro Silicon 75

Silicon content is 74.0%-80.0%, aluminum content also has a variety of specifications, such as no more than 0.5%, no more than 1.0%, no more than 1.5%, no more than 2.0%, etc., calcium content is generally no more than 0.3% or 0.5%, phosphorus content is no more than 0.035% or 0.040%, sulfur content is no more than 0.020%, manganese content has no clear upper limit, but generally low, usually below 2%.

chemical composition

Grade	Chemical Composition(mass fraction)%
	Si	Al	Ca	Mn	Cr	P	S	C
	≥	≤
FeSi90Al1.5	87.0~95.0	1.5	1.5	0.4	0.2	0.04	0.02	0.2
FeSi9oAl3.0	87.0~95.0	3	1.5	0.4	0.2	0.04	0.02	0.2
FeSi75Al0.5-A	74.0~80.0	0.5	1	0.4	I0.3	0.035	0.02	0.1
FeSi75Al0.5-B	72.0~80.0	0.5	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al1.0-A	74.0~80.0	1	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al1.0-B	72.0~80.0	1	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al1.5-A	74.0-80.0	1.5	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al1.5-B	72.0~80.0	1.5	1	0.5	0.5	0.04	0.02	0.2
FeSi75Al2.0-A	74.0~80.0	2	1	0.4	0.3	0.035	0.02	0.1
FeSi75Al2.0-B	72.0~80.0	2		0.5	0.5	0.04	0.02	0.2
FeSi75-A	74.0~80.0			0.4	0.3	0.035	0.02	0.1
FeSi75-B	72.0~80.0			0.5	0.5	0.04	0.02	0.2
FeSi65	65.0~72.0			0.6	0.5	0.04	0.02

Application of Ferro silicon alloy

Ferrosilicon is commonly used as a deoxidizer and an alloying agent in the production of steel and cast iron. It has several important functions in these metallurgical processes:

Deoxidization: Ferrosilicon is added to molten iron or steel to remove oxygen and other impurities by forming silicon dioxide (SiO2) and other slag materials. This helps improve the quality and purity of the final metal product.

Alloying: It is used to introduce silicon into the metal, which can enhance the mechanical properties of the resulting alloy. The addition of silicon can increase the strength and hardness of steel while reducing its electrical conductivity.

Nodularization: In the production of ductile or nodular cast iron, ferrosilicon is added to the molten iron to promote the formation of graphite nodules, which improve the ductility and mechanical properties of the cast iron.

Ferrosilicon comes in various grades and forms, including powders, granules, and ferrosilicon lumps, depending on the intended application. It plays a vital role in the metallurgical industry and is a key component in the manufacturing of various steel and iron products.

Ferro silicon Alloy

FAQ

Q: What ferroalloy products do you provide?

A: The ferroalloys supplied include: ferrosilicon, silicon metal, ferrosilicon nitride, rare earth magnesium ferrosilicon, silicon metal powder, electrolytic manganese flakes, manganese metal ingots, high carbon silicon and other products. For detailed product information, please contact the company staff (WhatsApp: +86 187 3720 3671; Email: info@aonmetal.com) to request a product manual.

Q: How to get a quote?

A: You can contact the sales team through the company's official website (https://www.aonmetals.com/), phone (+86 187 3720 3671) or email (info@aonmetal.com) to provide demand information to obtain a quote.

Q: What services does the company provide?

A: The company provides customized products, technical consulting, logistics services and after-sales support.

Do you provide samples?
The company provides sample services. Please contact the company's customer service for specific details.

Q: How to choose the right ferroalloy product?

A: The selection of suitable ferroalloys should consider the required chemical composition, physical properties, cost and application areas. It is recommended to consult professionals.

Q: What are the quality standards of ferroalloys?

A: The quality standards of ferroalloys vary from country to country and industry to industry, and usually include composition analysis, physical property testing and appearance inspection.

Q: Can you provide product parameter and size customization services?

A: Yes, we provide product customization services.For example, products require low phosphorus, low aluminum, low carbon, high carbon, etc. and 0-3mm 1-10mm 10-50mm 10-100mm.etc

Q: What is the term of payment?

A: T/T,L/C

Q: What is your MOQ?

A: 25 Ton or a container

Q: Advantages of the business team?

A: Talent is an important factor in company development. All sales staff of our company have undergone strict screening and professional training. They are familiar with the professional knowledge and business processes of domestic and international trade, and have keen perception and insight into the ferroalloy market. We can provide you with the most professional industry evaluation and industry dynamics analysis.

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Ferro Silicon Alloy

Common specifications

chemical composition

Application of Ferro silicon alloy

FAQ