Sourcing inner-grooved copper tubes from China
Internally grooved copper tubes from China carry 4% UK duty across the listed tube lines, with no recorded anti-dumping duty. Refined copper in level wound coils has a specific tariff line. Check pressure-equipment scope against the intended supply and use. Cambridge China Bridge sources internally grooved copper tubes.
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4% UK duty on internally grooved copper tubes
Read from the UK Trade Tariff on 1 October 2026, heading 7411 covers copper tubes and pipes. Every supplied commodity line carries 4% duty for goods from China. The supplied tariff record shows no anti-dumping or countervailing duty, suspensions or attached import controls.
Code 7411 10 90 10 expressly includes refined copper tube in level wound coils with inner grooves, not further processed. Straight refined copper tube has a separate line. The table includes alternative forms and materials; use the alloy line only where the actual material fits its description. Confirm composition, delivery form and processing with your broker using finding your commodity code. For wider heading coverage, see finned copper tubes.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Refined copper tube in level wound coils, with inner grooves, not further processed | 7411 10 90 10 | 4% | None |
| Straight refined copper tube | 7411 10 10 00 | 4% | None |
| Other refined copper tube outside the specified level wound coil line | 7411 10 90 90 | 4% | None |
| Other copper alloy tube, where the specified material is an alloy | 7411 29 00 00 | 4% | None |
Specify the internal groove profile
Specify copper grade, temper, outside diameter, minimum wall thickness beneath the grooves, groove depth, pitch, helix angle and profile. Supply a cross-section drawing and agree how each dimension will be measured. State coil weight, usable length, winding direction, end caps and internal cleanliness. Ask for material certificates linked to the supplied batches.
Pressure-equipment rules cover pressure equipment and assemblies with maximum allowable pressure above 0.5 bar; the official definition includes piping. Ask your compliance adviser to assess the intended supply and use before ordering. Agree the pressure and leak-test evidence needed for your application through testing and certification.
Worked duty example
Illustrative example, not a quote: 2 tonnes of internally grooved refined copper tube in level wound coils, illustrative only under 7411 10 90 10, invoiced at £22,000 free on board, with £800 of freight and insurance to the UK. The customs value is £22,800. Duty at 4% is £912. Import VAT at 20% is charged on the customs value plus duty, £23,712, so it is £4,742.40. Import taxes total £5,654.40; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £912 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Grooves and walls: inspect cut cross-sections against the drawing, including groove profile and the remaining wall beneath each groove.
Material and temper: match batch identification to the mill certificate and check sample bends or flares for cracking.
Cleanliness: check capped ends and sample interiors for moisture, oil, particles and damage from cutting.
Coils and packing: check ovality, dents, winding condition and coil weight against the agreed length. Record arrival damage before unwinding. See quality inspection explained.
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What goes wrong
An outside-diameter check can miss an incorrect groove profile or a thin wall beneath the grooves. Wrong temper can cause cracking during forming, while internal residue or moisture can undermine the buyer's cleanliness specification. Crushed coils can leave unusable sections even when the delivery weight matches.
Approve a sectioned sample and a forming trial before releasing production. Put groove measurements, cleanliness checks and packing acceptance into the inspection brief. Compare arrival samples with the approved drawing and retain batch records when investigating defects.
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 internally grooved copper tubes from China?
The supplied tariff record, read on 1 October 2026, shows 4% across heading 7411, with no recorded anti-dumping or countervailing duty.
Which commodity code covers internally grooved copper coils?
7411 10 90 10 expressly covers refined copper tube in level wound coils, whether smooth or with inner grooves, not further processed. Confirm that your goods match that description.
What groove details should I give the factory?
Provide a cross-section drawing showing groove depth, pitch, helix angle, profile and minimum wall beneath the grooves, alongside copper grade, temper and outside diameter.
How do I check internally grooved copper tube on arrival?
Inspect sample cross-sections, check material certificates and forming behaviour, examine internal cleanliness, and record coil dents, ovality and damaged end caps.