What is HS code 730590 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
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)
Heading 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
Chapter 73: Articles of iron or steel
Plain-language overview
Use HS-6 730590 when importing or exporting iron or steel tubes and pipes that have a circular cross-section and an external diameter exceeding 406.4mm, but are not seamless. For example, this code applies to welded steel pipes used in large-scale construction projects.
This code is specific to tubes and pipes that are not made from cast iron and are categorized as 'not seamless.' If you're dealing with seamless pipes, you would need to look under a different HS code, such as 7304 for seamless iron or steel pipes.
When classifying your products, remember that HS-6 730590 includes items like welded steel tubes used in plumbing or structural applications, whereas HS-6 7305 encompasses all iron or steel tubes exceeding the specified diameter, regardless of their seamless or non-seamless nature.
If you're unsure whether your product fits this classification, consider the manufacturing process and the intended use. For instance, tubes used in oil and gas pipelines would fall under this code if they meet the size criteria.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
iron or steel pipes · welded tubes · non-seamless pipes · large diameter tubes · industrial steel pipes · construction steel tubes · oil and gas pipes · plumbing pipes · HVAC steel tubes · heavy machinery pipes · structural steel tubes · water supply pipes · automotive exhaust tubes · tubes exceeding 406.4mm
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Welded steel pipes for construction projects
- Large diameter pipes for oil and gas transportation
- Steel tubes used in heavy machinery
- Pipes for water supply systems exceeding 406.4mm
- Structural steel tubes for building frameworks
- Welded iron pipes for industrial applications
- Pipes used in HVAC systems with specified dimensions
- Steel tubes for automotive exhaust systems
Common questions
Frequent classification questions with short practical guidance.
How to classify large steel pipes?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Are welded pipes covered under HS-6 730590?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the dimensions for HS-6 730590?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Is there a difference between seamless and non-seamless pipes?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What types of products fall under HS-6 730590?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to determine if a pipe is seamless?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are examples of items classified under HS-6 730590?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
how to classify welded steel pipes for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
difference between seamless and non-seamless steel tubes
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
examples of iron or steel pipes exceeding 406.4mm
Use this topic to narrow your shortlist, then validate the final code against legal wording.
what products are included in HS-6 730590
Use this topic to narrow your shortlist, then validate the final code against legal wording.
importing large diameter steel tubes
Check the exact product specs and destination-country tariff notes before finalizing the code.
classification of industrial steel pipes
Use this topic to narrow your shortlist, then validate the final code against legal wording.
regulations for importing welded pipes
Check the exact product specs and destination-country tariff notes before finalizing the code.
how to find the right HS code for steel tubes
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of pipes are classified under HS-6 730590?
- HS-6 730590 covers welded iron or steel tubes and pipes with a circular cross-section and an external diameter exceeding 406.4mm, but not seamless.
- Can I use HS-6 730590 for seamless pipes?
- No, HS-6 730590 is specifically for non-seamless pipes. Seamless pipes fall under a different classification, such as HS-6 7304.
- What are common uses for products under HS-6 730590?
- Common uses include construction, plumbing, and industrial applications, especially where large diameter pipes are required.
- How do I determine the external diameter of a pipe?
- You can measure the external diameter with calipers or a measuring tape. Ensure it exceeds 406.4mm to qualify under this HS code.
- Are there any special regulations for importing these pipes?
- Yes, check local regulations for safety and quality standards specific to large diameter pipes, especially for industrial use.
- What if my product is close to the size limit?
- If your product's diameter is very close to 406.4mm, it's best to confirm with a customs broker to ensure correct classification.
- Do I need a specific certificate to import these pipes?
- Depending on your country, you may need specific certifications or compliance documents, especially for industrial applications.
- Can I use HS-6 730590 for pipes made from materials other than steel?
- No, this code specifically applies to iron or steel pipes. Other materials would require different HS classifications.
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