HS code · 6-digit subheading
HS Code 7305.12 – 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
HS code 7305.12 is the 6-digit subheading for 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. It is used for ERW oil pipeline, HFW natural gas transmission pipe, large diameter ERW water pipe, HFW structural pipe and ERW piling pipe.
What HS 7305.12 covers
This HS code covers large-diameter, non-seamless iron or steel line pipes used for oil or gas pipelines, specifically those produced by longitudinal welding methods other than submerged arc welding (e.g., Electric Resistance Welding - ERW, High-Frequency Welding - HFW). These pipes are vital for constructing extensive energy transmission networks, moving hydrocarbons across vast distances. Countries with significant energy production or consumption, such as the United States, Canada, Russia, and emerging economies in Asia and the Middle East, are primary importers, investing heavily in pipeline infrastructure. Leading exporters typically include nations with robust steel industries and advanced pipe manufacturing technologies, including China, Japan, and various European countries. The trade is characterized by large contracts, adherence to strict industry specifications like API 5L, and complex logistics, with market dynamics tied to global energy demand, infrastructure development, and regulatory frameworks.
- Covers
- ERW oil pipeline
- HFW natural gas transmission pipe
- Large diameter ERW water pipe
- HFW structural pipe
- ERW piling pipe
- Longitudinally welded gas pipe
- Examples
- TMK ERW line pipe
- Welspun Corp HFW pipe
- JSW Steel ERW pipe
- Tenaris HFW pipe
Codes often confused with 7305.12
Common mistake. This code can be mistaken for 730511 (LSAW pipes) or 730519 (other non-longitudinally welded pipes) due to the specific welding process being the key differentiator. It's crucial to distinguish the exact welding technique.
Top exporters and importers of HS code 730512, 2025
In 2025, the largest exporter of HS code 730512 in UN Comtrade data was Germany, with 25% of world exports; the largest importer in UN Comtrade data was the United States, with 29% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 Germany $214M 25% of world exports
- 2 China $174M 20% of world exports
- 3 Greece $133M 15% of world exports
World total: $862M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $208M 29% of world imports
- 2 Qatar* ~$135M 19% of world imports · partner records ↗
- 3 United Arab Emirates* ~$63M 8.7% of world imports · partner records ↗
World total: $722M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 7305.12
Brazil does not split HS 7305.12: its NCM code is 7305.12.00.
All Brazil NCM codes in heading 73.05 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about HS 7305.12
What is HS code 730512?
HS code 730512 is a 6-digit subheading in the Harmonized System that covers: 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. This HS code covers large-diameter, non-seamless iron or steel line pipes used for oil or gas pipelines, specifically those produced by longitudinal welding methods other than submerged arc welding (e.g., Electric Resistance Welding - ERW, High-Frequency Welding - HFW). These pipes are vital for constructing extensive energy transmission networks, moving hydrocarbons across vast distances. Countries with significant energy production or consumption, such as the United States, Canada, Russia, and emerging economies in Asia and the Middle East, are primary importers, investing heavily in pipeline infrastructure. Leading exporters typically include nations with robust steel industries and advanced pipe manufacturing technologies, including China, Japan, and various European countries. The trade is characterized by large contracts, adherence to strict industry specifications like API 5L, and complex logistics, with market dynamics tied to global energy demand, infrastructure development, and regulatory frameworks.
What products fall under HS code 730512?
ERW oil pipeline, HFW natural gas transmission pipe, large diameter ERW water pipe, HFW structural pipe, ERW piling pipe, longitudinally welded gas pipe
What are common misclassifications for HS code 730512?
This code can be mistaken for 730511 (LSAW pipes) or 730519 (other non-longitudinally welded pipes) due to the specific welding process being the key differentiator. It's crucial to distinguish the exact welding technique.
Which countries are the top exporters of goods under HS code 730512?
In 2025, the top exporters of HS code 730512 in UN Comtrade data were Germany ($214M, 25% of world exports), China ($174M) and Greece ($133M). World exports came to about $862M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 730512?
In 2025, the top importers of HS code 730512 in UN Comtrade data were the United States ($208M, 29% of world imports), Qatar (about $135M) and the United Arab Emirates (about $63M). World imports came to about $722M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 730512 structured?
HS code 730512 is a 6-digit subheading under the Harmonized System. The first 2 digits (73) identify the chapter, digits 3-4 (05) identify the heading, and digits 5-6 (12) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 730512?
In Brazil, HS code 730512 is NCM 7305.12.00. The last two digits are 00 because Brazil does not split this HS code further.