Sourcing seamless oilfield drill pipes from China

Duty and classification for oilfield drill pipe

Read from the UK Trade Tariff on 1 October 2026, heading 7304 covers seamless tubes, pipes and hollow profiles of iron other than cast iron, or steel. This guide covers drill pipe used in oil or gas drilling. For adjacent products and the wider heading, see seamless steel oil-well casing.

The supplied drill-pipe lines all show 0% duty for goods from China. They list no anti-dumping or countervailing duty, steel measure, suspension or import control. The table divides the residual other-drill-pipe code into separate purchasing cases; those rows share a commodity code.

For 7304 23 00 20, the pipe must be circular, with external diameter not exceeding 406,4 mm and carbon equivalent not exceeding 0,86 under the stated International Institute of Welding formula and chemical analysis. Stainless drill pipe has a separate line. Include the commodity code on the import declaration and confirm the classification using finding your commodity code.

Specify the pipe body and tool joints together

Write the steel grade, heat treatment, outside diameter, wall thickness, length, straightness and upset-end geometry into the purchase specification. Define whether the order is for pipe bodies or finished drill pipe with attached tool joints. Specify connection drawings, thread form, joint material, bore and acceptance tolerances rather than relying on a catalogue description.

Ask for heat-linked chemical and mechanical test records, heat-treatment records and the agreed non-destructive examination reports for bodies and joint attachments. Agree operating limits, connection make-up instructions and rejection criteria with the drilling customer. Work equipment must be sold safe, so far as reasonably practicable. Use testing and certification support to agree the evidence needed before production.

Worked duty example

Illustrative example, not a quote: Illustrative order, not a quotation: 50 joints of seamless oilfield drill pipe under 7304 23 00 20, invoiced at £32,000 free on board, with £4,000 of freight and insurance to the UK. The customs value is £36,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £36,000, so it is £7,200. 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

Traceability: match pipe and tool-joint markings to heat records, test reports and the packing list; investigate mixed grades or untraceable replacements.

Dimensions: measure body diameter, wall thickness, length, straightness and upset geometry against the agreed drawings; check joint bore and alignment.

Connections: gauge threads and inspect shoulders for damage, burrs and corrosion; trial-fit the agreed mating connection without treating a successful fit as proof of strength.

Condition and records: inspect bodies and joint attachments for visible defects, confirm the agreed examination reports, and check thread protectors and packing. Repeat arrival checks before releasing stock. See quality inspection.

What goes wrong

A seamless body does not establish the quality of an attached tool joint. Mismatched connections, damaged shoulders, eccentric joints or missing attachment examination records can leave a shipment unsuitable for the customer's drill string. Certificates can also describe a different heat or cover the body without covering the finished assembly.

Keep doubtful pipes separate from accepted stock and resolve discrepancies against the agreed drawings and test records. Do not accept a substituted grade or connection on appearance alone. Confirm freight, insurance and import VAT separately from the duty rate using UK import duty and VAT.

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.