Iron or non-alloy steel; U sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more

HS v2022 Code: 721631

About iron or non-alloy steel; u sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more

HS code 721631 covers the production and trade of U-shaped steel sections made from iron or non-alloy steel. These steel products are primarily used in construction, infrastructure, and various industrial applications due to their strength, durability, and versatility. As a crucial component of the global steel industry, the trade and manufacturing of these U-shaped steel sections play a significant role in supporting economic development and growth across numerous sectors.

Production process

The production of U-shaped steel sections under HS code 721631 typically involves a hot-rolling or hot-drawing process. In the hot-rolling method, steel billets or slabs are fed into a rolling mill, where they are subjected to intense heat and pressure to shape them into the desired U-profile. Alternatively, the hot-drawing process utilizes a die to extrude the steel into the required U-section shape. Both techniques aim to create steel products with consistent dimensions, high strength, and a smooth surface finish.

Production inputs

The main inputs required for the production of U-shaped steel sections under HS code 721631 include iron or non-alloy steel as the primary raw material, as well as specialized rolling or extrusion machinery. Additionally, energy sources, such as natural gas or electricity, are necessary to power the production facilities and maintain the high temperatures required for the hot-rolling or hot-drawing processes. Skilled labor, including engineers, technicians, and operators, is also a crucial input for this industry.

Production outputs

The primary output of HS code 721631 is U-shaped steel sections, which are widely used in various construction and industrial applications. These steel products may be further consumed by industries covered under other HS codes, such as 730120 Structures and parts of structures; iron or steel, towers and lattice masts, 730830 Structures and parts of structures; iron or steel, doors, windows and their frames and thresholds for doors, and 731010 Tanks, casks, drums, cans, boxes and similar containers; iron or steel, of a capacity not exceeding 300l, not fitted with mechanical or thermal equipment.

Revisions to 721631

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 721631. The most recent 1 version of this code (721631) is in the HS v2022 system (this version):

This page shows the most recent version of code 721631.

Family tree for iron or non-alloy steel; u sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more

    graph LR
    A["<a href='/classifications/hs/v2022/72'>72: Iron and steel</a>"]
A --> B["<a href='/classifications/hs/v2022/7216'>7216: Iron or non-alloy steel, angles, shapes and sections</a>"]
B --> C["<a href='/classifications/hs/v2022/721631'>721631: Iron or non-alloy steel; U sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more</a>"]

    B --> D["<a href='/classifications/hs/v2022/721610'>721610: Iron or non-alloy steel; U, I or H sections, hot-rolled, hot-drawn or extruded, of a height of less than 80mm</a>"]
B --> E["<a href='/classifications/hs/v2022/721621'>721621: Iron or non-alloy steel; L sections, hot-rolled, hot-drawn or extruded, of a height of less than 80mm</a>"]
B --> F["<a href='/classifications/hs/v2022/721622'>721622: Iron or non-alloy steel; T sections, hot-rolled, hot-drawn or extruded, of a height less than 80mm</a>"]
B --> G["<a href='/classifications/hs/v2022/721632'>721632: Iron or non-alloy steel; I sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more</a>"]
B --> H["<a href='/classifications/hs/v2022/721633'>721633: Iron or non-alloy steel; H sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more</a>"]
B --> I["<a href='/classifications/hs/v2022/721640'>721640: Iron or non-alloy steel; L or T sections, hot-rolled, hot-drawn or extruded, of a height of 80mm or more</a>"]
B --> J["<a href='/classifications/hs/v2022/721650'>721650: Iron or non-alloy steel; angles, shapes and sections, n.e.c. in heading no. 7216, hot-rolled, hot-drawn or extruded</a>"]
B --> K["<a href='/classifications/hs/v2022/721661'>721661: Iron or non-alloy steel; angles, shapes and sections, cold-formed or cold-finished, obtained from flat-rolled products</a>"]
B --> L["<a href='/classifications/hs/v2022/721669'>721669: Iron or non-alloy steel; angles, shapes and sections, cold-formed or cold-finished, (not obtained from flat-rolled products)</a>"]
B --> M["<a href='/classifications/hs/v2022/721691'>721691: Iron or non-alloy steel; angles, shapes and sections, n.e.c. in heading no. 7216, cold-formed or cold-finished, from flat-rolled products</a>"]
B --> N["<a href='/classifications/hs/v2022/721699'>721699: Iron or non-alloy steel; angles, shapes and sections, n.e.c. in heading no. 7216</a>"]

    

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class C level6
class D level6
class E level6
class F level6
class G level6
class H level6
class I level6
class J level6
class K level6
class L level6
class M level6
class N level6

  class C highlight

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  %% class J,K,L,M,N,O,P level3
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