Iron or steel; expanded metal

HS v2017 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 material. Expanded metal is produced by slitting and stretching a metal sheet, creating a perforated, mesh-like material with a range of applications in the building, automotive, and industrial sectors. This industry plays a crucial role in the global economy, providing essential components for infrastructure development, manufacturing, and a variety of other industries.

Production process

The production of expanded metal involves a series of specialized processes. First, a metal sheet, typically made of iron or steel, is fed into a machine that cuts and stretches the material, creating the distinctive expanded pattern. The cutting and stretching process can be done mechanically or hydraulically, depending on the specific equipment and production methods used by the manufacturer. The resulting expanded metal sheets are then trimmed, coated (if required), and prepared for distribution to various end-users.

Production inputs

The main inputs for the production of expanded metal include raw materials such as iron or steel sheets, as well as specialized machinery and equipment for the cutting and stretching processes. Manufacturers may also require additional resources like protective coatings, cutting tools, and energy sources to power the production equipment.

Production outputs

The primary output of HS code 731450 is expanded metal sheets, which are then used in a wide range of applications. These include 731441 Construction materials, 731442 Fencing, 731443 Architectural features, and 731444 Automotive components. The versatility of expanded metal makes it a valuable input for industries such as construction, manufacturing, and infrastructure development.

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 page shows a legacy version of code 731450 ( HS v2017).

Newer versions
Older versions

Family tree for iron or steel; expanded metal

    graph LR
    A["<a href='/classifications/hs/v2017/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2017/7314'>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/v2017/731450'>731450: Iron or steel; expanded metal</a>"]

    B --> D["<a href='/classifications/hs/v2017/731412'>731412: Iron or steel; woven cloth, endless bands for machinery, of stainless steel</a>"]
B --> E["<a href='/classifications/hs/v2017/731414'>731414: Iron or steel; woven cloth, of stainless steel, (other than endless bands for machinery)</a>"]
B --> F["<a href='/classifications/hs/v2017/731419'>731419: Iron or steel; woven cloth, other than of stainless steel</a>"]
B --> G["<a href='/classifications/hs/v2017/731420'>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/v2017/731431'>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/v2017/731439'>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/v2017/731441'>731441: Iron or steel wire; grill, netting and fencing, plated or coated with zinc</a>"]
B --> K["<a href='/classifications/hs/v2017/731442'>731442: Iron or steel wire; grill, netting and fencing, coated with plastic</a>"]
B --> L["<a href='/classifications/hs/v2017/731449'>731449: Iron or steel wire; grill, netting and fencing, coated with materials other than zinc or plastic</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    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