Copper; washers, (including spring washers), not threaded

HS v2022 Code: 741521

About copper; washers, (including spring washers), not threaded

HS code 741521 covers the import and export of copper washers, including spring washers, that are not threaded. This industry plays a crucial role in the broader manufacturing and construction sectors, providing essential components for a wide range of applications. Copper washers are valued for their durability, corrosion resistance, and thermal conductivity, making them indispensable in various industries such as automotive, plumbing, and electrical engineering.

Production process

The production of copper washers typically involves a multi-step process. First, copper alloy is procured and melted in a furnace. The molten metal is then poured into molds or extruded into sheets or wires. The copper is then stamped or punched into the desired washer shape, often with the inclusion of a spring component. Finally, the washers undergo finishing processes such as deburring, polishing, and coating to meet specific requirements.

Production inputs

The main inputs required for the production of copper washers include high-purity copper alloy, stamping or punching machinery, and specialized tools for shaping and finishing the washers. Additionally, energy sources such as electricity or natural gas are needed to power the manufacturing equipment. The industry also relies on a skilled workforce capable of operating the machinery and ensuring quality control throughout the production process.

Production outputs

The primary output of this industry is copper washers, which are then consumed by a variety of other industries. These washers are commonly used in 731816 Structures and parts of structures, of iron or steel, n.e.s., 842199 Parts of machinery for the industrial preparation or manufacture of food or drink, and 853890 Parts suitable for use solely or principally with the apparatus of headings 85.25 to 85.28, among others. The versatility of copper washers makes them an essential component in a wide range of industrial and commercial applications.

Revisions to 741521

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 741521. The most recent 1 version of this code (741521) is in the HS v2022 system (this version):

This page shows the most recent version of code 741521.

Family tree for copper; washers, (including spring washers), not threaded

    graph LR
    A["<a href='/classifications/hs/v2022/74'>74: Copper and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/7415'>7415: Copper, nails, tacks, drawing pins, staples (not those of heading no. 8305) and the like, of copper or iron or steel with heads of copper; screws bolts, nuts, screws hooks, rivets, cotters, washers</a>"]
B --> C["<a href='/classifications/hs/v2022/741521'>741521: Copper; washers, (including spring washers), not threaded</a>"]

    B --> D["<a href='/classifications/hs/v2022/741510'>741510: Copper; nails and tacks, drawing pins, staples and similar articles of copper, or of iron or steel with copper heads</a>"]
B --> E["<a href='/classifications/hs/v2022/741529'>741529: Copper; rivets, cotters, cotter-pins and similar articles, not threaded</a>"]
B --> F["<a href='/classifications/hs/v2022/741533'>741533: Copper; screws, bolts and nuts, threaded</a>"]
B --> G["<a href='/classifications/hs/v2022/741539'>741539: Copper; articles n.e.c. in heading no. 7415</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 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