Iron or steel; expanded metal

HS v2022 Code: 731450

About iron or steel; expanded metal

HS code 731450 covers the classification of iron or steel expanded metal, a versatile and widely used construction and industrial material. Expanded metal is a type of perforated metal sheet or mesh, created by slitting and stretching a metal sheet to form a grid-like pattern. This process results in a lightweight, yet strong and durable material with a range of applications across various industries, including construction, manufacturing, and transportation.

Production process

The production of expanded metal typically involves several key steps. First, a metal sheet, usually made of iron or steel, is fed into a specialized machine. This machine cuts a series of parallel slits in the sheet and then stretches the metal, creating the distinctive expanded pattern. The degree of stretching and the size of the openings can be adjusted to produce different types of expanded metal, each with its own unique characteristics and applications.

Production inputs

The primary inputs required for the production of expanded metal include raw steel or iron sheets, as well as specialized machinery and equipment for the slitting and stretching process. Additionally, the production may require various tools and accessories, such as cutting blades, rollers, and tension mechanisms, to ensure the efficient and consistent creation of the expanded metal.

Production outputs

The primary output of HS code 731450 is the expanded metal itself, which can be used in a wide range of applications. This material is often used in construction, such as for reinforcement in concrete structures, as well as in manufacturing, where it may be used for screens, guards, and other protective barriers. The expanded metal produced under this code may also be consumed by industries that require 731441 Iron or steel; grill, welded at the intersection, of wire with a maximum cross-sectional dimension of 3 mm or more and having a mesh size of 100 cm2 or more or 731442 Iron or steel; grill, welded at the intersection, of wire with a maximum cross-sectional dimension of 3 mm or more and having a mesh size of less than 100 cm2.

Revisions to 731450

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 731450. The most recent 1 version of this code (731450) is in the HS v2022 system (this version):

This page shows the most recent version of code 731450.

Family tree for iron or steel; expanded metal

    graph LR
    A["<a href='/classifications/hs/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7314'>7314: Cloth (including endless bands), grill, netting and fencing, of iron or steel wire; expanded metal of iron or steel</a>"]
B --> C["<a href='/classifications/hs/v2022/731450'>731450: Iron or steel; expanded metal</a>"]

    B --> D["<a href='/classifications/hs/v2022/731412'>731412: Iron or steel; woven cloth, endless bands for machinery, of stainless steel</a>"]
B --> E["<a href='/classifications/hs/v2022/731414'>731414: Iron or steel; woven cloth, of stainless steel, (other than endless bands for machinery)</a>"]
B --> F["<a href='/classifications/hs/v2022/731419'>731419: Iron or steel; woven cloth, other than of stainless steel</a>"]
B --> G["<a href='/classifications/hs/v2022/731420'>731420: Iron or steel wire; grill, netting and fencing, welded at intersections, of wire with a maximum cross-sectional dimension of 3mm or more and mesh size 100cm2 or more</a>"]
B --> H["<a href='/classifications/hs/v2022/731431'>731431: Iron or steel wire; grill, netting and fencing, welded at the intersection, n.e.c. in item no. 7314.20, plated or coated with zinc</a>"]
B --> I["<a href='/classifications/hs/v2022/731439'>731439: Iron or steel wire; grill, netting and fencing, welded at the intersection, n.e.c. in item no. 7314.20, (other than plated or coated with zinc)</a>"]
B --> J["<a href='/classifications/hs/v2022/731441'>731441: Iron or steel wire; grill, netting and fencing, plated or coated with zinc</a>"]
B --> K["<a href='/classifications/hs/v2022/731442'>731442: Iron or steel wire; grill, netting and fencing, coated with plastic</a>"]
B --> L["<a href='/classifications/hs/v2022/731449'>731449: Iron or steel wire; grill, netting and fencing, coated with materials other than zinc or plastic</a>"]

    

    %% Color coordination by level

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    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
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 C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight