Copper; powders and flakes

HS v2022 Code: 7406

About copper; powders and flakes

HS code 7406 covers copper powders and flakes, which are essential raw materials for a wide range of industries. Copper is a highly conductive and corrosion-resistant metal, making it a crucial component in electrical, electronics, and construction applications. The copper powder and flake industry plays a vital role in supporting the global economy by supplying essential materials for the manufacture of a diverse range of products.

Production process

Copper powders and flakes are typically produced through mechanical or chemical processes. Mechanical methods involve grinding or atomizing copper into fine particles, while chemical processes may involve the reduction of copper salts or the decomposition of copper compounds. The specific production techniques used can vary depending on the desired particle size, shape, and purity of the final product.

Production inputs

The main inputs required for the production of copper powders and flakes include refined copper, various chemical reagents, and specialized machinery such as grinding mills, atomizers, and furnaces. Additionally, energy sources, such as electricity or natural gas, are needed to power the production processes.

Production outputs

The copper powders and flakes produced under HS code 7406 are used as raw materials in a wide range of industries, including 7411 Copper tubes and pipes, 7415 Copper nails, tacks, staples, screws, bolts, nuts, washers, and similar articles, and 8504 Electrical transformers, static converters, and inductors. These copper-based materials are essential for the manufacture of electrical components, conductive coatings, and various other products that rely on copper's unique properties.

Family tree for copper; powders and flakes

    graph LR
    A["<a href='/classifications/hs/v2022/74'>74: Copper and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/7406'>7406: Copper; powders and flakes</a>"]

    A --> C["<a href='/classifications/hs/v2022/7401'>7401: Copper mattes; cement copper (precipitated copper)</a>"]
A --> D["<a href='/classifications/hs/v2022/7402'>7402: Copper; unrefined, copper anodes for electrolytic refining</a>"]
A --> E["<a href='/classifications/hs/v2022/7403'>7403: Copper; refined and copper alloys, unwrought</a>"]
A --> F["<a href='/classifications/hs/v2022/7404'>7404: Copper; waste and scrap</a>"]
A --> G["<a href='/classifications/hs/v2022/7405'>7405: Copper; master alloys</a>"]
A --> H["<a href='/classifications/hs/v2022/7407'>7407: Copper; bars, rods and profiles</a>"]
A --> I["<a href='/classifications/hs/v2022/7408'>7408: Copper wire</a>"]
A --> J["<a href='/classifications/hs/v2022/7409'>7409: Copper plates, sheets and strip; of a thickness exceeding 0.15mm</a>"]
A --> K["<a href='/classifications/hs/v2022/7410'>7410: Copper foil (whether or not printed or backed with paper, paperboard, plastics or similar backing materials) of a thickness (excluding any backing) not exceeding 0.15mm</a>"]
A --> L["<a href='/classifications/hs/v2022/7411'>7411: Copper tubes and pipes</a>"]
A --> M["<a href='/classifications/hs/v2022/7412'>7412: Copper; tube or pipe fittings (e.g. couplings, elbows, sleeves)</a>"]
A --> N["<a href='/classifications/hs/v2022/7413'>7413: Copper; stranded wire, cables, plaited bands and the like, not electrically insulated</a>"]
A --> O["<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>"]
A --> P["<a href='/classifications/hs/v2022/7418'>7418: Copper; table, kitchen or other household articles and parts thereof; pot scourers, scouring, polishing pads, gloves and the like; sanitary ware and parts thereof</a>"]
A --> Q["<a href='/classifications/hs/v2022/7419'>7419: Copper; articles thereof n.e.c. in chapter 74</a>"]

    B --> R["<a href='/classifications/hs/v2022/740610'>740610: Copper; powders of non-lamellar structure</a>"]
B --> S["<a href='/classifications/hs/v2022/740620'>740620: Copper; powders of lamellar structure, flakes</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 level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level6
class S level6

  class B 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 B highlight