Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)

HS v2022 Code: 730539

About iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)

HS code 730539 covers a specific category of iron or steel tubes and pipes that are welded, have a circular cross-section, and an external diameter exceeding 406.4mm. These products are widely used in various industrial applications, including construction, manufacturing, and infrastructure development. They play a crucial role in the global economy, facilitating the transportation of fluids, gases, and other materials across diverse sectors.

Production process

The production of the tubes and pipes covered under HS code 730539 typically involves a welding process. The raw steel or iron is first cut into the desired lengths, then formed into a circular shape, and finally welded along the seam. This welding process is not done longitudinally, meaning the weld is not running along the length of the pipe. The final products undergo various quality control checks to ensure they meet industry standards and specifications.

Production inputs

The main inputs required for the production of the tubes and pipes under HS code 730539 include raw steel or iron, welding equipment, and specialized machinery for cutting, forming, and shaping the pipes. Additionally, energy sources, such as electricity or natural gas, are needed to power the production process. The availability and quality of these inputs play a crucial role in determining the overall efficiency and output of this industry.

Production outputs

The tubes and pipes produced under HS code 730539 are primarily used in various industrial applications, such as 730511 Line pipe of a kind used for oil or gas pipelines, 730512 Casing, tubing and drill pipe, of a kind used in the drilling for oil or gas, and other general-purpose piping systems. These products are often consumed by industries like construction, manufacturing, and infrastructure development, where they are used for the transportation of fluids, gases, and other materials.

Revisions to 730539

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 730539. The most recent 1 version of this code (730539) is in the HS v2022 system (this version):

This page shows the most recent version of code 730539.

Family tree for iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)

    graph LR
    A["<a href='/classifications/hs/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7305'>7305: Iron or steel (excluding cast iron); tubes and pipes (e.g. welded, riveted or similarly closed), having circular cross-sections, external diameter of which exceeds 406.4mm, not seamless</a>"]
B --> C["<a href='/classifications/hs/v2022/730539'>730539: Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), welded (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)</a>"]

    B --> D["<a href='/classifications/hs/v2022/730511'>730511: Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally submerged arc welded, having circular cross-sections, external diameter exceeds 406.4mm</a>"]
B --> E["<a href='/classifications/hs/v2022/730512'>730512: Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), longitudinally welded (not submerged arc welded), having circular cross-sections, external diameter exceeds 406.4mm</a>"]
B --> F["<a href='/classifications/hs/v2022/730519'>730519: Iron or steel (excluding cast iron); line pipe of a kind used for oil or gas pipelines (not seamless), (not longitudinally welded), having circular cross-sections, external diameter exceeds 406.4mm</a>"]
B --> G["<a href='/classifications/hs/v2022/730520'>730520: Iron or steel (excluding cast iron); casing of a kind used in drilling for oil or gas (not seamless), having circular cross-sections, external diameter exceeds 406.4mm</a>"]
B --> H["<a href='/classifications/hs/v2022/730531'>730531: Iron or steel (excluding cast iron); tubes and pipes (other than line pipe or casing of a kind used for oil or gas pipelines), longitudinally welded, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)</a>"]
B --> I["<a href='/classifications/hs/v2022/730590'>730590: Iron or steel (excluding cast iron); tubes and pipes n.e.c. in heading no. 7305, having circular cross-sections, external diameter exceeds 406.4mm, (not seamless)</a>"]

    

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