Iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section

HS v2022 Code: 730439

About iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section

HS code 730439 covers a crucial segment of the steel industry, encompassing the production of seamless, non-alloy steel tubes, pipes, and hollow profiles of circular cross-section. These products find widespread application across various industries, including construction, oil and gas, and manufacturing, making them an integral part of the global economy.

Production process

The production of seamless steel tubes and pipes under HS code 730439 typically involves a process known as seamless tube manufacturing. This process begins with a solid steel billet or round bar, which is then heated and pierced to create a hollow shell. The shell is then further reduced in diameter and elongated through a series of rolling and drawing operations to achieve the desired dimensions and wall thickness.

Production inputs

The primary raw material input for this industry is 720410 Pig iron and spiegeleisen in pigs, blocks or other primary forms and 720711 Semi-finished products of iron or non-alloy steel. Additionally, the production process requires specialized machinery, such as piercing mills, rolling mills, and drawing equipment, as well as energy sources like natural gas or electricity to power the manufacturing facilities.

Production outputs

The seamless steel tubes and pipes produced under HS code 730439 are used in a wide range of applications, including 730431 Line pipe of a kind used for oil or gas pipelines, 730441 Casing, tubing and drill pipe, of a kind used in drilling for oil or gas, and various other construction and industrial applications. These products may also be further processed or incorporated into the manufacturing of 730451 Other tubes, pipes and hollow profiles, seamless, of circular cross-section, of iron or non-alloy steel and other related steel products.

Revisions to 730439

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 730439. The most recent 1 version of this code (730439) is in the HS v2022 system (this version):

This page shows the most recent version of code 730439.

Family tree for iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section

    graph LR
    A["<a href='/classifications/hs/v2022/73'>73: Iron or steel articles</a>"]
A --> B["<a href='/classifications/hs/v2022/7304'>7304: Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel</a>"]
B --> C["<a href='/classifications/hs/v2022/730439'>730439: Iron or non-alloy steel (excluding cast iron); seamless, (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section</a>"]

    B --> D["<a href='/classifications/hs/v2022/730411'>730411: Iron or steel (excluding cast iron); seamless, line pipe of a kind used for oil or gas pipelines, of stainless steel</a>"]
B --> E["<a href='/classifications/hs/v2022/730419'>730419: Iron or steel (excluding cast iron or stainless steel); seamless, line pipe of a kind used for oil or gas pipelines</a>"]
B --> F["<a href='/classifications/hs/v2022/730422'>730422: Steel, stainless; seamless, drill pipe, of a kind used in drilling for oil or gas</a>"]
B --> G["<a href='/classifications/hs/v2022/730423'>730423: Iron or steel (excluding cast iron or stainless steel); seamless, drill pipe, of a kind used in drilling for oil or gas</a>"]
B --> H["<a href='/classifications/hs/v2022/730424'>730424: Steel, stainless; seamless, casing and tubing, of a kind used in drilling for oil or gas</a>"]
B --> I["<a href='/classifications/hs/v2022/730429'>730429: Iron or steel (excluding cast iron or stainless steel); seamless, casing and tubing, of a kind used in drilling for oil or gas</a>"]
B --> J["<a href='/classifications/hs/v2022/730431'>730431: Iron or non-alloy steel (excluding cast iron); seamless, cold-drawn or cold-rolled, tubes, pipes and hollow profiles of circular cross-section</a>"]
B --> K["<a href='/classifications/hs/v2022/730441'>730441: Steel, stainless; cold-drawn or cold-rolled (cold-reduced), tubes and pipes of circular cross-section</a>"]
B --> L["<a href='/classifications/hs/v2022/730449'>730449: Steel, stainless; (excluding cold-drawn or cold-rolled), tubes pipes and hollow profiles of circular cross-section</a>"]
B --> M["<a href='/classifications/hs/v2022/730451'>730451: Steel, alloy (not stainless steel); seamless, cold-drawn or cold-rolled (cold-reduced), tubes, pipes and hollow profiles of circular cross-section</a>"]
B --> N["<a href='/classifications/hs/v2022/730459'>730459: Steel, alloy (not stainless steel); (excluding cold-drawn or cold-rolled), tubes, pipes and hollow profiles of circular cross-section</a>"]
B --> O["<a href='/classifications/hs/v2022/730490'>730490: Iron or steel (excluding cast iron); seamless, tubes, pipes and hollow profiles, seamless, n.e.c. in heading no. 7304</a>"]

    

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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 M level6
class N level6
class O level6

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