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 v2017 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 type 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, infrastructure, and manufacturing. 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 formed into a cylindrical shape, and then the edges are welded together using various welding techniques, such as arc welding or laser welding. This process ensures the structural integrity and leak-proof nature of the final product. The welding is performed in a way that does not create a longitudinal seam, resulting in a seamless appearance.

Production inputs

The main inputs required for the production of the tubes and pipes under HS code 730539 include raw steel or iron, as well as specialized welding equipment and consumables. The steel or iron used may be of various grades and compositions, depending on the specific application requirements. Additionally, the production process may require other auxiliary materials, such as shielding gases, flux, and protective coatings to ensure the quality and durability of the final product.

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 730520 Casing and tubing, of a kind used in the drilling for oil or gas. These products are essential for the transportation of fluids, gases, and other materials in industries like oil and gas, construction, and manufacturing.

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 page shows a legacy version of code 730539 ( HS v2017).

Older versions

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/v2017/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2017/7305'>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/v2017/730539'>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/v2017/730511'>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/v2017/730512'>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/v2017/730519'>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/v2017/730520'>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/v2017/730531'>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/v2017/730590'>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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