Ferrosilicon 70, which is a ferrosilicon alloy with a silicon content of about 70%, is an important ferroalloy product that plays a key role in steel smelting, casting and many industrial fields. With its excellent performance and wide application, it has become an ideal choice for production and manufacturing in many industries.

Ferro silicon 70 is made of high-quality silica, coke, steel scraps, etc. as the main raw materials and is smelted at high temperature in an electric furnace. Its appearance is usually silver-gray block, with good electrical and thermal conductivity, a density of about 3.5 - 3.6g/cm³, and a melting point between 1260 - 1350℃. The products strictly follow relevant national standards and industry specifications to ensure stable and reliable quality, uniform chemical composition, low impurity content, and can meet the diverse needs of different customers.

Ferrosilicon 70

Main ingredients and specifications

The core component of fesi 70 is silicon (Si), which is controlled between 65% and 75%, and the iron (Fe) content is about 20% to 30%. In addition, it also contains a small amount of impurity elements such as manganese (Mn), carbon (C), phosphorus (P), and sulfur (S). The product specifications are diverse, and the lump size can be customized according to customer requirements. Common specifications include 10-50mm, 50-100mm, etc. Powdered products can also be produced on demand, and the size range can range from dozens of meshes to hundreds of meshes to adapt to different usage scenarios.,

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

Performance advantages

Strong deoxidation ability

Ferro silicon 70 has extremely strong deoxidation ability. During the steel smelting process, it can effectively remove oxygen from molten steel, reduce the oxygen content of steel, prevent defects such as pores and looseness in steel during solidification, and significantly improve the quality and performance of steel. It is an indispensable deoxidizer in the steelmaking process.

Good inoculation effect

In the foundry industry, ferrosilicon70 can be used as an inoculant to refine the grain structure of castings, improve the mechanical properties of castings, increase the strength, toughness and wear resistance of castings, reduce casting defects, and improve the qualified rate and surface quality of castings.

Excellent alloying effect

Ferro silicon 70 can be used as an alloying element additive to add silicon to steel, which can improve the strength, hardness, elastic limit and corrosion resistance of steel. It is widely used in the production of various alloy steels, stainless steels and heat-resistant steels, etc., to meet the special requirements of steel performance in different industrial fields.

Wide application areas

Steel industry

In the steelmaking process, fesi70 is used as a deoxidizer and alloy additive in large quantities for the production of plain carbon steel, low alloy steel, high alloy steel and special steel, effectively improving the quality and performance of steel; in cast iron production, ferrosilicon 70 is used as an inoculant and spheroidizer to improve the structure and properties of cast iron, and produce gray cast iron, ductile iron and malleable cast iron with excellent performance.

Nonferrous metal industry

In the smelting and processing of nonferrous metals such as aluminum and magnesium, 70ferrosilicon can be added as an alloying element to improve the properties of nonferrous metals, such as improving the strength, hardness and heat resistance of aluminum alloys, and enhancing the corrosion resistance and processing properties of magnesium alloys.

Other industries

Ferro silicon 70 can also be used to produce ferrosilicon alloy powder as raw material for powder metallurgy to manufacture various mechanical parts and tools; in the chemical industry, it can be used to produce ferrosilicon compounds as catalysts, reducing agents and additives; in the refractory industry, ferrosilicon 70 can be used as an additive to improve the strength and corrosion resistance of refractory materials.

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Contact Information

Aon Metals (Henan Aon Metal and Materials Co., Limited)

Address: Tianhui NO.9 Building, Zhonghua Road, Anyang City, Henan Province, China.

Tel: +86 187 3720 3671

Email: info@aonmetal.com

Website: https://www.aonmetals.com/

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