Ferro-alloys; ferro-tungsten and ferro-silico-tungsten

HS v2017 Code: 720280

About ferro-alloys; ferro-tungsten and ferro-silico-tungsten

HS code 720280 covers the classification of ferro-alloys, specifically ferro-tungsten and ferro-silico-tungsten. These specialized metal alloys play a crucial role in various industries, contributing to the production of high-performance tools, machinery, and components. As a key input for 820240 Cutting tools for metalworking and 840991 Parts suitable for use solely or principally with the engines of heading 8407 or 8408, the ferro-alloys industry is integral to the broader manufacturing and engineering sectors.

Production process

The production of ferro-tungsten and ferro-silico-tungsten involves the smelting of tungsten-containing ores or concentrates with iron-rich materials. This process typically takes place in electric arc furnaces, where the high temperatures facilitate the reduction of the tungsten and silicon compounds, allowing them to combine with the iron. The resulting molten alloy is then cast into ingots or other shapes, ready for further processing and incorporation into various end-products.

Production inputs

The primary inputs for the ferro-alloys industry under HS code 720280 include tungsten-bearing ores or concentrates, such as wolframite and scheelite, as well as iron-rich materials like scrap iron or pig iron. Additionally, the production process requires significant amounts of electricity to power the electric arc furnaces used in smelting. Specialized equipment, such as furnaces, casting molds, and material handling systems, are also essential for the efficient manufacture of these ferro-alloys.

Production outputs

The primary outputs of the ferro-alloys industry under HS code 720280 are the ferro-tungsten and ferro-silico-tungsten alloys themselves. These materials are then consumed by a range of downstream industries, including 820240 Cutting tools for metalworking, 840991 Parts suitable for use solely or principally with the engines of heading 8407 or 8408, and 848620 Machines and apparatus of a kind used solely or principally for the manufacture of semiconductor boules or wafers, semiconductor devices, electronic integrated circuits or flat panel displays, where their unique properties, such as high strength, hardness, and heat resistance, make them invaluable components.

Revisions to 720280

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 720280. The most recent 1 version of this code (720280) is in the HS v2022 system:

This page shows a legacy version of code 720280 ( HS v2017).

Newer versions

Family tree for ferro-alloys; ferro-tungsten and ferro-silico-tungsten

    graph LR
    A["<a href='/classifications/hs/v2017/72'>72: Iron and steel</a>"]
A --> B["<a href='/classifications/hs/v2017/7202'>7202: Ferro-alloys</a>"]
B --> C["<a href='/classifications/hs/v2017/720280'>720280: Ferro-alloys; ferro-tungsten and ferro-silico-tungsten</a>"]

    B --> D["<a href='/classifications/hs/v2017/720211'>720211: Ferro-alloys; ferro-manganese, containing by weight more than 2% of carbon</a>"]
B --> E["<a href='/classifications/hs/v2017/720219'>720219: Ferro-alloys; ferro-manganese, containing by weight 2% or less of carbon</a>"]
B --> F["<a href='/classifications/hs/v2017/720221'>720221: Ferro-alloys; ferro-silicon, containing by weight more than 55% of silicon</a>"]
B --> G["<a href='/classifications/hs/v2017/720229'>720229: Ferro-alloys; ferro-silicon, containing by weight 55% or less of silicon</a>"]
B --> H["<a href='/classifications/hs/v2017/720230'>720230: Ferro-alloys; ferro-silico-manganese</a>"]
B --> I["<a href='/classifications/hs/v2017/720241'>720241: Ferro-alloys; ferro-chromium, containing by weight more than 4% of carbon</a>"]
B --> J["<a href='/classifications/hs/v2017/720249'>720249: Ferro-alloys; ferro-chromium, containing by weight 4% or less of carbon</a>"]
B --> K["<a href='/classifications/hs/v2017/720250'>720250: Ferro-alloys; ferro-silico-chromium</a>"]
B --> L["<a href='/classifications/hs/v2017/720260'>720260: Ferro-alloys; ferro-nickel</a>"]
B --> M["<a href='/classifications/hs/v2017/720270'>720270: Ferro-alloys; ferro-molybdenum</a>"]
B --> N["<a href='/classifications/hs/v2017/720291'>720291: Ferro-alloys; ferro-titanium and ferro-silico-titanium</a>"]
B --> O["<a href='/classifications/hs/v2017/720292'>720292: Ferro-alloys; ferro-vanadium</a>"]
B --> P["<a href='/classifications/hs/v2017/720293'>720293: Ferro-alloys; ferro-niobium</a>"]
B --> Q["<a href='/classifications/hs/v2017/720299'>720299: Ferro-alloys; n.e.c. in heading no. 7202</a>"]

    

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