Steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73

HS v2017 Code: 730640

About steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73

HS code 730640 covers the import and export of stainless steel tubes, pipes, and hollow profiles with a circular cross-section, which are welded rather than seamless. This industry plays a crucial role in the global manufacturing and construction sectors, providing essential components for a wide range of applications, from industrial equipment to infrastructure projects. The demand for these products is closely tied to the overall health of the global economy and the ongoing need for durable, corrosion-resistant materials in various industries.

Production process

The production of stainless steel tubes and pipes under HS code 730640 typically involves a multi-step process. First, stainless steel coils or sheets are cut and formed into a circular shape. The edges are then welded together using specialized techniques, such as gas tungsten arc welding (GTAW) or laser welding, to create a seamless, leak-proof joint. The welded tubes or pipes may undergo additional processing, such as heat treatment, surface finishing, or cutting to specific lengths, depending on the intended application.

Production inputs

The main inputs required for the production of stainless steel tubes and pipes under HS code 730640 include high-quality stainless steel raw materials, such as 720810 hot-rolled coils and sheets, specialized welding equipment, and various tools and machinery for cutting, forming, and finishing the products. Additionally, the industry relies on a skilled workforce capable of operating the production equipment and ensuring the quality and consistency of the final products.

Production outputs

The primary outputs of the industry covered by HS code 730640 are stainless steel tubes, pipes, and hollow profiles with a circular cross-section. These products are widely used in a variety of industries, including 842139 machinery and equipment manufacturing, 730890 construction, 860900 transportation, and 841920 plumbing and heating. The stainless steel properties of these products, such as corrosion resistance and durability, make them suitable for applications where high-performance materials are required.

Revisions to 730640

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 730640. The most recent 1 version of this code (730640) is in the HS v2022 system:

This page shows a legacy version of code 730640 ( HS v2017).

Family tree for steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73

    graph LR
    A["<a href='/classifications/hs/v2017/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2017/7306'>7306: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73</a>"]
B --> C["<a href='/classifications/hs/v2017/730640'>730640: Steel, stainless; tubes, pipes and hollow profiles, welded, of circular cross-section, n.e.c. in chapter 73</a>"]

    B --> D["<a href='/classifications/hs/v2017/730611'>730611: Steel; stainless; line pipe of a kind used for oil or gas pipelines n.e.c. in chapter 73, welded, (not seamless)</a>"]
B --> E["<a href='/classifications/hs/v2017/730619'>730619: Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (other than of stainless steel or seamless), n.e.c. in chapter 73</a>"]
B --> F["<a href='/classifications/hs/v2017/730621'>730621: Steel, stainless; casing and tubing of a kind used in drilling for oil and gas, n.e.c. in chapter 73, welded, (not seamless)</a>"]
B --> G["<a href='/classifications/hs/v2017/730629'>730629: Iron or steel (excluding cast iron); casing and tubing of a kind used in drilling for oil and gas (other than stainless steel or seamless), n.e.c. in chapter 73</a>"]
B --> H["<a href='/classifications/hs/v2017/730630'>730630: Iron or non-alloy steel (excluding cast iron); tubes and pipes (not seamless), welded, of circular cross-section, n.e.c. in chapter 73</a>"]
B --> I["<a href='/classifications/hs/v2017/730650'>730650: Steel, alloy; tubes, pipes and hollow profiles (other than stainless steel or seamless), welded, of circular cross-section, n.e.c. in chapter 73</a>"]
B --> J["<a href='/classifications/hs/v2017/730661'>730661: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), welded, of square or rectangular cross-section, n.e.c. in chapter 73</a>"]
B --> K["<a href='/classifications/hs/v2017/730669'>730669: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73, welded, of non-circular cross-section (not square or rectangular cross-section)</a>"]
B --> L["<a href='/classifications/hs/v2017/730690'>730690: Iron or steel (excluding cast iron); tubes, pipes and hollow profiles (not seamless), n.e.c. in chapter 73</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