It is an essential deoxidizer in the steelmaking industry. In the steelmaking industry, ferrosilicon is used for precipitation deoxidation and diffusion deoxidation. It is also used as an alloying agent in steelmaking. The addition of a certain amount of silicon can significantly improve the intensity, hardness and elasticity of steel, improve the permeability of steel, and reduce the magnetic hysteresis loss of transformer steel. The content of silicon is 0.15%-0.35% in general steel, 0.40%-1.75% in structural steel, 0.30%-1.80% in tool steel, 0.40%-2.80% in spring steel, 3.40%-4.00% in stainless acid-resistant steel, 1.00%-3.00% in the heat-resistant steel, and 2%-3% or more in the silicon steel.
High-silicon ferrosilicon or siliceous alloys are used as reducing agents for the production of low-carbon ferroalloys. The addition of ferrosilicon in cast iron can be used as a nucleating agent for nodular cast iron, preventing the formation of carbide, promoting the precipitation and spheroidization of graphite, and improving the performance of cast iron.
In addition, ferrosilicon powder can be used as a suspended phase in the mineral dressing industry, and used as a coating for the welding rod in the welding rod manufacturing industry. High silicon ferrosilicon can be used to produce the semiconductor pure silicon in the electrical industry, and used to prepare silicone and other materials in the chemical industry.
In the steelmaking industry, 3-5kg of 75% ferrosilicon is required to produce 1 ton of steel.
Ferrosilicon is widely used in the production in steelmaking, casting and other industries.
Ferro Silicon
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% Si |
% C |
% P |
% S |
Al |
Size |
75 Min |
0.20 Max |
0.04 Max |
0.02 Max |
2.0 Max |
10-50/50-100mm or custom
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75 Min |
0.20 Max |
0.05 Max |
0.02 Max |
1.5 Max |
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75 Min |
0.20 Max |
0.05 Max |
0.02 Max |
0.5 Max |
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75 Min |
0.20 Max |
0.05 Max |
0.02 Max |
0.1 Max |
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75 Min |
0.20 Max |
0.05 Max |
0.02 Max |
2.0 Max |
3-8/10mm 0.3-1mm 1-3 mm |
1-ton or 0.5-ton bags are used for natural blocks; 25kg woven bags with moisture-proof inner membrane or plus 1-ton or 0.5-ton outer bags/plastic woven bags are used for power; packages required by customers are also supported.
The main products include rare earth magnesium ferrosilicon alloy (spheroidizing agent), nucleating agent, pipe powder, ferrosilicon (particles), (high, medium and low) carbon manganese, (high, medium, low and micro) ferrochromium, alloy cored wire, silicon carbide, silicon nitride, slag onglomeration agent, desulfurizer, and carburant, as well as other customized alloy products.