Alloy steel powders

HS v2022 Code: 720521

About alloy steel powders

HS code 720521 covers alloy steel powders, a critical material in various manufacturing industries. Alloy steel powders are produced through specialized processes and find applications in diverse sectors, including automotive, aerospace, and construction. These powders play a vital role in the production of high-performance components, contributing to the overall efficiency and advancement of the global economy.

Production process

Alloy steel powders are typically produced through processes such as atomization, mechanical alloying, and powder metallurgy. In the atomization method, molten alloy steel is rapidly cooled and solidified into fine powder particles. Mechanical alloying involves the high-energy milling of elemental metal powders to create a homogeneous alloy composition. Powder metallurgy techniques, including compaction and sintering, are then used to shape and consolidate the alloy steel powders into desired forms.

Production inputs

The production of alloy steel powders requires a range of raw materials, including various alloying elements such as chromium, nickel, and molybdenum. Specialized machinery, such as atomizers, ball mills, and powder presses, are essential for the manufacturing process. Additionally, energy sources, such as electricity or natural gas, are necessary to power the production facilities.

Production outputs

Alloy steel powders produced under HS code 720521 are used in the manufacture of a wide variety of components and products. These powders are often consumed by industries that require high-strength, corrosion-resistant, or heat-resistant materials, such as the 731800 Automotive, 880000 Aerospace, and 730110 Construction sectors. The outputs of this industry may also be used in the production of 732510 Castings and 732690 Metal parts covered under other HS codes.

Revisions to 720521

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 720521. The most recent 1 version of this code (720521) is in the HS v2022 system (this version):

This page shows the most recent version of code 720521.

Older versions

Family tree for alloy steel powders

    graph LR
    A["<a href='/classifications/hs/v2022/72'>72: Iron and steel</a>"]
A --> B["<a href='/classifications/hs/v2022/7205'>7205: Granules and powders, of pig iron, spiegeleisen, iron or steel</a>"]
B --> C["<a href='/classifications/hs/v2022/720521'>720521: Alloy steel powders</a>"]

    B --> D["<a href='/classifications/hs/v2022/720510'>720510: Iron or steel, pig iron, spiegeleisen; granules thereof</a>"]
B --> E["<a href='/classifications/hs/v2022/720529'>720529: Iron or steel, pig iron, spiegeleisen; powders (excluding alloy steel)</a>"]

    

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