Physical indicators: 72#, 75# 6517
Chemical index: Silicon, manganese
Usage of ferrosilicon: (1) Used as deoxidizer and alloy agent in steelmaking industry. In order to obtain the steel with qualified chemical composition and ensure the quality of steel, deoxidation must be carried out in the last stage of steelmaking. Silicon and oxygen have a great chemical affinity, so ferrosilicon is a strong deoxidizer used for precipitation and diffusion deoxidation in steelmaking. Adding a certain amount of silicon to steel can significantly improve the strength, hardness and elasticity of steel, so ferrosilicon is also used as alloy agent in smelting structural steel (budding silicon 0.40-1.75%), tool steel (containing SiO.30-1.8%), spring steel (containing SiO. 40-2.8%) and transformer silicon steel (containing Silicon 2.81-4.8%). In addition, in the steel industry, ferrosilicon powder can give off a lot of heat at high temperature, which is often used as the ingot cap heating agent to improve the quality and recovery of ingot. (2) Used as inoculant and spheroidizer in the cast iron industry. Cast iron is an important metal material in modern industry. It is cheaper than steel and easy to be melted and smelted. It has excellent casting properties and much better vibration resistance than steel. Adding a certain amount of ferrosilicon to cast iron can prevent the formation of carbide in iron and promote the precipitation and spheroidization of graphite. Therefore, ferrosilicon is an important inoculant (to help the precipitation of graphite) and spheroidizing agent in the production of nodular cast iron. (3) Used as reducing agent in ferroalloy production. Not only the chemical affinity between silicon and oxygen is great, but also the high silicon iron has low carbon content. Therefore, high silicon ferrosilicon (or silicon alloy) is a common reducing agent in the production of low carbon ferroalloy in ferroalloy industry. (4) Other USES. The finely ground or atomized ferrosilicon powder can be used as suspension phase in ore dressing industry. It can be used as coating in welding rod manufacturing industry.
Quantity(Tons) | 1 - 100 | >100 |
Est. Time(days) | 20 | To be negotiated |
Description:
Silicon ferro alloys specifications sgs test report ferro silicon import ferro silicon
Ferro silicon is made by electric furnace with the raw materials coke, quartz (or silica) and iron scrap. It is a kind of alloys which composed of iron and silicon
Application:
1. Ferro silicon can increase Si content in cast iron and steel making;
2. Ferro silicon can be used as deoxidizer in steel making;
3. Ferro silicon also can be used as inoculant in iron cast;
Grade |
Si |
Al |
C |
S |
P |
FeSi72 |
72%min |
2.0%max |
0.2%max |
0.02%max |
0.04%max |
FeSi75 |
75%min |
2.0%max |
0.2%max |
0.02%max |
0.04%max |
FeSi75 Low Al |
75%min |
1.0%max 0.5%max 0.1%max |
0.1%max |
0.02%max |
0.04%max |
Size:1-3mm/3-10mm/10-50mm/50-100mm |
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Packing: 1MT big bag |