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

HS v2022 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 that are welded. 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 driven by the need for durable, corrosion-resistant materials that can withstand harsh environments and meet stringent safety standards.

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 cylindrical shape. The edges are then welded together using specialized techniques, such as gas tungsten arc welding (GTAW) or laser welding, to create a seamless, high-quality product. The welded tubes or pipes may undergo additional processing, such as heat treatment, surface finishing, or precision cutting, to meet specific customer requirements.

Production inputs

The main inputs required for the production of stainless steel tubes and pipes under HS code 730640 include stainless steel raw materials, such as coils or sheets, as well as specialized welding equipment, cutting tools, and other manufacturing machinery. Additionally, the industry relies on a skilled workforce capable of operating the production equipment and ensuring quality control throughout the manufacturing process.

Production outputs

The primary output of the industry covered by HS code 730640 is stainless steel tubes, pipes, and hollow profiles with a circular cross-section. These products are widely used in various industries, including 731100 Oil or gas drilling platforms, 841950 Heat exchange units, 842139 Filtering or purifying machinery and apparatus for gases, and 853710 Boards, panels, consoles, desks, cabinets and other bases for electric control or the distribution of electricity. The versatility and durability of these stainless steel components make them essential for applications where corrosion resistance, strength, and safety are paramount.

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 version):

This page shows the most recent version of code 730640.

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/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7306'>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/v2022/730640'>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/v2022/730611'>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/v2022/730619'>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/v2022/730621'>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/v2022/730629'>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/v2022/730630'>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/v2022/730650'>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/v2022/730661'>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/v2022/730669'>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/v2022/730690'>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

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    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