HS Code for Welded Large-Diameter Steel Pipe (Chapter 7305)
Longitudinally submerged arc welded (LSAW) and spiral submerged arc welded (SSAW) pipes go into transmission pipelines (X60-X80), monopiles for offshore wind foundations, and mining slurry lines. Chapter 7305 covers outside diameter > 406.4mm.
Sample 6-digit codes
| Code | Description |
|---|---|
| 7305.11 | Line pipe LSAW, OD > 406.4mm |
| 7305.12 | Line pipe electric-resistance welded |
| 7305.20 | Casing of a kind used in oil/gas drilling, welded |
| 7305.31 | Other welded, longitudinally welded (LSAW/SSAW) |
Typical import duty by market
| Market | Duty |
|---|---|
| European Union | 0% Safeguard + AD 25.1% on Chinese SSAW; CBAM 2026. |
| United States | 25% Section 232 + AD on line pipe from many origins. |
| India (BCD) | 10-15% |
Worked landed-cost example
5,000 MT LSAW X70 24-inch pipe, FOB Nhava Sheva USD 1,350/MT, DAP construction yard Basra Iraq
- · API 5L PSL 2 for high-pressure line pipe.
- · DNV OS-F101 offshore pipeline standard.
- · ISO 3183.
- · CBAM iron and steel.
- · MRC (Manufacturing Record Book) requirement for oil/gas projects.
- · China
- · India (Welspun, Jindal)
- · Japan
- · South Korea
- · Germany (Europipe)
- · Italy (Tenaris)
Frequently asked questions
LSAW (straight seam) is standard for gas transmission - lower defect risk in the weld. SSAW (spiral) is cheaper (USD 100-200/MT) and acceptable for water, low-pressure gas, structural piling. Same HS 7305 but end-use dictates specification and price.
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Sources & citations
- EU CBAM Regulation 2023/956European Commission
- WCO Harmonized System NomenclatureWorld Customs Organization
- WTO Integrated Database (tariff data)World Trade Organization