Ferrosilicon powder: Ferrosilicon is an alloy of iron and silicon. Ferrosilicon is ground into powder. It is mainly used as a deoxidizer in steel and iron making.which is used as a deoxidizer for steelmaking and ironmaking.

The size of ferrosilicon powder is divided into multiple specifications, the common ones are 0~3mm, 0~5mm, 40 mesh, 50 mesh, 60 mesh, 80 mesh, 100 mesh, 200 mesh, 300 mesh, 400 mesh and other different specifications and sizes.

Different specifications determine the different uses of ferrosilicon powder.

The finer the size of ferrosilicon powder, the larger its specific surface area, which can better contact with molten steel and improve its deoxidation effect. At the same time, the finer the particle size of ferrosilicon powder, the better it can be combined with other alloy elements to improve the quality and performance of steel.

Therefore, when choosing ferrosilicon powder, we need to choose the appropriate size specification according to actual needs and product characteristics.

Ferro Silicon powder

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

Uses of ferrosilicon powder

Steelmaking field:

Deoxidizer: The silicon in ferrosilicon powder has a strong affinity with oxygen. During steelmaking, it can react with oxygen in molten steel to remove oxygen, play a deoxidation role, reduce the oxygen content in molten steel, reduce defects such as pores and inclusions in steel, and improve the quality and performance of steel. It is used in the production of various structural steels, alloy steels, etc.

Alloy additives: It can supplement silicon elements for molten steel and adjust the chemical composition of steel. The addition of silicon elements can improve the strength, hardness, elastic limit and other mechanical properties of steel, and can also improve the casting performance and welding performance of steel, so as to meet the diversified performance requirements of different steel grades.

Foundry industry: In casting production, it is often used as an inoculant. It can change the growth morphology and distribution of graphite in cast iron, and promote the precipitation of graphite in a finer and more uniform state, thereby refining the grain structure of cast iron, improving the strength, toughness, wear resistance and other mechanical properties of cast iron parts, and making the cast iron products produced of higher quality. It is often used in the production of cast iron parts such as automotive parts and mechanical accessories.

Chemical industry:

Production of silicon compounds: It is one of the raw materials for producing some silicon compounds (such as silicone oil, silicone rubber, silicone resin, etc.). In the corresponding chemical reaction, the silicon element in ferrosilicon powder can participate in the reaction. After a series of chemical synthesis steps, it is converted into various silicon-based chemical products with different uses. These products are widely used in many fields such as electronics, electrical appliances, aerospace, etc.

Reducing agent: In some chemical reduction reactions, it can be used as a reducing agent due to the reducing property of silicon element, such as participating in the hydrometallurgical process of some metals to help extract metal elements from metal compounds.

Other fields:

Welding rod manufacturing: Ferrosilicon powder can be used as a component of welding rod flux core, which helps to improve the welding performance of welding rods, such as enhancing the strength of welds and improving the forming quality of welds, etc., and plays an important role in the welding industry.

Magnetic materials: Since ferrosilicon powder contains iron elements, it can be used in the manufacture of some magnetic materials after certain processing and formula adjustment, and participate in the production of products such as electromagnets and transformer cores to meet the relevant needs in the electromagnetic field.

Ferro silicon powder

Storage and Transportation

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Storage: FeSi powder should be stored in a dry, well-ventilated warehouse to avoid moisture, because moisture may cause chemical reactions such as oxidation, affecting its quality. At the same time, it should be stored separately from corrosive or chemically reactive substances such as acids, alkalis, and oxidants to prevent unexpected chemical reactions from causing product deterioration.

Transportation: It is usually transported in sealed packaging, such as plastic woven bags, ton bags, or sealed barrels, to prevent ferrosilicon powder from scattering, getting damp, and having poor contact with the external environment during transportation, ensuring that it can be safely and intactly transported to the destination.

ferro silicon powder

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Ferro Silicon Powder