Iron or steel; helical springs and leaves for springs

HS v2022 Code: 732020

About iron or steel; helical springs and leaves for springs

HS code 732020 covers the production and trade of iron or steel helical springs and leaves for springs. These components are essential for a wide range of industries, including automotive, machinery, and construction. They play a crucial role in providing shock absorption, load bearing, and energy storage capabilities in various mechanical systems. The global market for helical springs and spring leaves is driven by the growing demand from end-user industries, as well as the need for reliable and durable components in modern engineering applications.

Production process

The production of iron or steel helical springs and leaves for springs typically involves a series of specialized manufacturing processes. The raw materials, such as steel wire or strip, are first cut and formed into the desired spring shape using techniques like coiling, stamping, or pressing. Heat treatment processes, such as tempering or quenching, are then applied to enhance the mechanical properties of the springs, ensuring they can withstand the required loads and stresses. Finally, the springs may undergo additional finishing steps, such as surface treatment or coating, to improve their corrosion resistance and aesthetic appeal.

Production inputs

The main inputs required for the production of HS code 732020 items include high-quality steel wire or strip, as well as specialized machinery and equipment for spring manufacturing. Depending on the specific application, additional materials such as lubricants, protective coatings, or specialized alloys may also be used. The production process also requires skilled labor, engineering expertise, and access to reliable energy and transportation infrastructure to support the supply chain.

Production outputs

The primary outputs of HS code 732020 are helical springs and spring leaves, which are used in a wide range of applications. These components are often consumed by industries such as 870000 Motor vehicles, trailers and semi-trailers, 842000 Machinery and mechanical appliances, and 940000 Furniture; bedding, mattresses, mattress supports, cushions and similar stuffed furnishings. The springs and leaves produced under this code may also be used in 860000 Railway or tramway locomotives, rolling-stock and parts thereof, 950000 Toys, games and sports requisites; parts and accessories thereof, and various other sectors that require reliable and durable mechanical components.

Revisions to 732020

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 732020. The most recent 1 version of this code (732020) is in the HS v2022 system (this version):

This page shows the most recent version of code 732020.

Family tree for iron or steel; helical springs and leaves for springs

    graph LR
    A["<a href='/classifications/hs/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7320'>7320: Springs and leaves for springs, of iron or steel</a>"]
B --> C["<a href='/classifications/hs/v2022/732020'>732020: Iron or steel; helical springs and leaves for springs</a>"]

    B --> D["<a href='/classifications/hs/v2022/732010'>732010: Iron or steel; leaf-springs and leaves therefor</a>"]
B --> E["<a href='/classifications/hs/v2022/732090'>732090: Iron or steel; springs n.e.c. in heading no. 7320</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 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