Ferro-alloys; ferro-silicon, containing by weight more than 55% of silicon

HS v2022 Code: 720221

About ferro-alloys; ferro-silicon, containing by weight more than 55% of silicon

HS code 720221 covers ferro-silicon, a critical ferro-alloy used in the production of steel and cast iron. Ferro-silicon is an essential ingredient in the steelmaking process, helping to remove oxygen and improve the strength and ductility of the final product. As a key component in the steel industry, which is a fundamental pillar of the global economy, the ferro-silicon industry plays a vital role in supporting economic growth and development worldwide.

Production process

Ferro-silicon is primarily produced through the smelting of iron ore and silicon-containing materials, such as quartz or coal, in an electric arc furnace. The raw materials are carefully measured and combined, then heated to extremely high temperatures to facilitate the chemical reactions that produce the desired ferro-silicon alloy. The molten ferro-silicon is then cast into ingots or other shapes for further processing and distribution.

Production inputs

The main inputs required for the production of ferro-silicon under HS code 720221 include iron ore, silicon-rich materials (e.g., quartz, coal), and significant amounts of electricity to power the energy-intensive smelting process. Specialized furnaces, casting equipment, and other industrial machinery are also essential for the efficient and large-scale production of this ferro-alloy.

Production outputs

The primary output of the ferro-silicon industry covered by HS code 720221 is the ferro-silicon alloy itself, which is then consumed by the 720810 Steel industry and 732510 Cast iron industry as a key ingredient in their manufacturing processes. Ferro-silicon helps to improve the strength, ductility, and other important properties of the final steel and cast iron products.

Revisions to 720221

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 720221. The most recent 1 version of this code (720221) is in the HS v2022 system (this version):

This page shows the most recent version of code 720221.

Family tree for ferro-alloys; ferro-silicon, containing by weight more than 55% of silicon

    graph LR
    A["<a href='/classifications/hs/v2022/72'>72: Iron and steel</a>"]
A --> B["<a href='/classifications/hs/v2022/7202'>7202: Ferro-alloys</a>"]
B --> C["<a href='/classifications/hs/v2022/720221'>720221: Ferro-alloys; ferro-silicon, containing by weight more than 55% of silicon</a>"]

    B --> D["<a href='/classifications/hs/v2022/720211'>720211: Ferro-alloys; ferro-manganese, containing by weight more than 2% of carbon</a>"]
B --> E["<a href='/classifications/hs/v2022/720219'>720219: Ferro-alloys; ferro-manganese, containing by weight 2% or less of carbon</a>"]
B --> F["<a href='/classifications/hs/v2022/720229'>720229: Ferro-alloys; ferro-silicon, containing by weight 55% or less of silicon</a>"]
B --> G["<a href='/classifications/hs/v2022/720230'>720230: Ferro-alloys; ferro-silico-manganese</a>"]
B --> H["<a href='/classifications/hs/v2022/720241'>720241: Ferro-alloys; ferro-chromium, containing by weight more than 4% of carbon</a>"]
B --> I["<a href='/classifications/hs/v2022/720249'>720249: Ferro-alloys; ferro-chromium, containing by weight 4% or less of carbon</a>"]
B --> J["<a href='/classifications/hs/v2022/720250'>720250: Ferro-alloys; ferro-silico-chromium</a>"]
B --> K["<a href='/classifications/hs/v2022/720260'>720260: Ferro-alloys; ferro-nickel</a>"]
B --> L["<a href='/classifications/hs/v2022/720270'>720270: Ferro-alloys; ferro-molybdenum</a>"]
B --> M["<a href='/classifications/hs/v2022/720280'>720280: Ferro-alloys; ferro-tungsten and ferro-silico-tungsten</a>"]
B --> N["<a href='/classifications/hs/v2022/720291'>720291: Ferro-alloys; ferro-titanium and ferro-silico-titanium</a>"]
B --> O["<a href='/classifications/hs/v2022/720292'>720292: Ferro-alloys; ferro-vanadium</a>"]
B --> P["<a href='/classifications/hs/v2022/720293'>720293: Ferro-alloys; ferro-niobium</a>"]
B --> Q["<a href='/classifications/hs/v2022/720299'>720299: Ferro-alloys; n.e.c. in heading no. 7202</a>"]

    

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