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)

HS v2017 Code: 730590

About 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)

HS code 730590 covers a critical segment of the steel industry, encompassing iron or steel tubes and pipes with circular cross-sections and an external diameter exceeding 406.4mm. These large-diameter pipes are essential for a wide range of applications, including oil and gas transportation, water distribution, and industrial infrastructure. As a key component in the global supply chain, this industry plays a vital role in supporting economic growth and development across various sectors.

Production process

The production of the pipes and tubes covered under HS code 730590 typically involves a combination of rolling, welding, and finishing processes. Steel billets or slabs are first heated and then rolled into the desired circular shape. The seams are then welded together using advanced techniques to ensure structural integrity. Finally, the pipes undergo various finishing processes, such as cutting, threading, and coating, to meet specific customer requirements and industry standards.

Production inputs

The main inputs required for the production of 730590 pipes and tubes include high-quality steel raw materials, specialized rolling and welding equipment, and various consumables such as welding electrodes and protective coatings. Additionally, skilled labor, energy resources, and efficient logistics and transportation systems are crucial for the smooth operation of this industry.

Production outputs

The primary outputs of the 730590 industry are large-diameter steel pipes and tubes, which are widely used in the 271000 Manufacture of coke and refined petroleum products, 220000 Water supply; sewerage, waste management and remediation activities, and 422000 Construction of utility projects sectors. These pipes are essential for the transportation and distribution of oil, gas, and water, as well as for the construction of industrial and infrastructure projects.

Revisions to 730590

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 730590. The most recent 1 version of this code (730590) is in the HS v2022 system:

This page shows a legacy version of code 730590 ( HS v2017).

Older versions

Family tree for 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)

    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/v2017/730590'>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>"]

    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/v2017/730539'>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>"]

    

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