Sourcing seamless steel line pipes from China
UK duty on Chinese seamless steel line pipes is 0% across the listed codes, with no recorded anti-dumping or countervailing duty. Specify the pipeline service, steel grade and tests before ordering, and match each pipe's heat number to its mill certificate. Cambridge China Bridge sources seamless steel line pipes.
Duty on seamless steel line pipe
Heading 7304 covers seamless iron and steel tubes, pipes and hollow profiles. This guide covers its line pipe family for oil or gas pipelines, including stainless steel and other steel. Casing, drill pipe and mechanical tubes are covered by the wider seamless steel tube guide.
Read from the UK Trade Tariff on 1 October 2026, all listed seamless line pipe codes carried 0% third-country duty for goods from China. The supplied records show no anti-dumping or countervailing duty, suspension, steel measure or attached import control for these lines. Import VAT is normally 20%; see UK import duty and VAT.
Confirm the commodity code using the line pipe description, steel type, circular cross-section, outside diameter and chemical analysis. Where the description specifies it, carbon equivalent must not exceed 0.86 under the International Institute of Welding formula. Ask the mill for the chemistry supporting that calculation.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Circular stainless line pipe, diameter up to 406.4 mm, carbon equivalent up to 0.86 | 7304 11 00 10 | 0% | None |
| Other stainless steel line pipe | 7304 11 00 90 | 0% | None |
| Other circular line pipe, diameter up to 168.3 mm, carbon equivalent up to 0.86 | 7304 19 10 20 | 0% | None |
| Other line pipe, diameter up to 168.3 mm, remaining category | 7304 19 10 80 | 0% | None |
| Other circular line pipe, over 168.3 to 406.4 mm, carbon equivalent up to 0.86 | 7304 19 30 20 | 0% | None |
| Other line pipe, diameter over 168.3 to 406.4 mm, remaining category | 7304 19 30 80 | 0% | None |
| Other line pipe, diameter over 406.4 mm | 7304 19 90 00 | 0% | None |
Specify the pipeline service and pipe acceptance
Give the mill the conveyed fluid, operating conditions and the pipeline designer's material specification. Agree the steel grade, seamless manufacturing route, heat treatment, outside diameter, minimum wall thickness, length, straightness, end preparation and coating. State the mechanical tests, pressure tests and non-destructive examination to be supplied, with acceptance criteria and any witnessing.
HSE expects pipeline duty-holders to apply relevant good practice as a minimum when judging compliance. Have the pipeline designer approve the pipe specification before purchase. Agree the mill inspection certificate and heat-number traceability before production; arrange testing and certification against the agreed specification.
Worked duty example
Illustrative example, not a quote: Illustrative order: 60 tonnes of seamless non-stainless steel line pipe, outside diameter 219 mm, meeting this code's remaining category under 7304 19 30 80, invoiced at £48,000 free on board, with £6,000 of freight and insurance to the UK. The customs value is £54,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £54,000, so it is £10,800. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match pipe markings and bundle labels to the purchase order, heat numbers, mill certificates and test records. Verify the stated seamless manufacturing route.
Dimensions: measure outside diameter, ovality, length and straightness. Check wall thickness around the circumference against the agreed minimum, rather than relying on an average.
Surfaces and ends: inspect inside and outside for laps, cracks, scabs, corrosion and handling damage. Check bevels, end squareness, caps and coating against the order.
Test evidence: compare chemistry, mechanical results and agreed pressure and non-destructive test records with the specification. Repeat arrival checks before releasing stock; see quality inspection explained.
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What goes wrong
A certificate can describe the correct grade while belonging to a different heat. Mixed bundles, missing pipe markings and copied certificates break the link between test results and delivered material. Quarantine unidentified pipes and ask the mill to resolve the discrepancy before fabrication.
Eccentric wall thickness can pass an average measurement while falling below the specified minimum. Internal laps may escape an outside-only inspection, and damaged bevels complicate site welding. Chemistry can also put a pipe in a different tariff branch. Agree rejection and reinspection arrangements before shipment.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on seamless line pipe from China?
The supplied tariff records show 0% duty on all listed seamless line pipe codes, with no anti-dumping or countervailing duty, read on 1 October 2026. Import VAT is normally 20%.
Does the steel quota measure apply to seamless line pipe?
The supplied records show no steel measure on the listed seamless line pipe codes. Confirm that the delivered product is seamless and matches the declared code.
What should a line pipe mill certificate show?
Ask for the agreed grade, heat number, chemistry, mechanical results and test records. Match the certificate to markings on the delivered pipes.
Why does carbon equivalent affect the commodity code?
Some listed line pipe branches specify a carbon equivalent not exceeding 0.86 under the International Institute of Welding formula. Use the mill's chemical analysis to check the applicable branch.