Sourcing aluminium reducing tees from China
Aluminium reducing tees from China carry 4% UK duty, with no anti-dumping duty listed. Specify the run and smaller branch separately, including wall thickness and connection type. Pressure-system use can bring pressure equipment requirements. Cambridge China Bridge sources aluminium reducing tees.
UK duty on aluminium reducing tees
Read from the UK Trade Tariff on 2 October 2026, heading 7609 covers aluminium tube or pipe fittings. Ordinary aluminium reducing tees fall within the other-fittings line, 7609 00 00 90. The table shows connection variants sharing that code, rather than separate tariff lines.
The supplied tariff data gives a flat 4% duty for goods from China across the heading. It lists no anti-dumping or countervailing duty, suspensions or attached import controls. Confirm the commodity code against the drawing and intended use. See the aluminium butt-weld elbows guide for related fittings within the wider heading.
Confirm with HMRC or your customs broker whether these fittings fall within UK CBAM and when any obligations apply. Ask the supplier for emissions data when planning repeat imports and consult the UK CBAM guide.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Aluminium butt-weld reducing tees | 7609 00 00 90 | 4% | None |
Specify the run, reducing branch and joints
Put the run ends and smaller branch on a dimensioned drawing. Specify each connection's outside diameter, bore, wall thickness and end preparation, plus branch position, overall dimensions and tolerances. State whether the tee is formed, cast or machined, and agree alloy, temper, finish, fluid, working pressure and temperature.
For welded tees, agree bevels, root faces and fit to the mating tube. For threaded or compression tees, specify thread form, sealing arrangement and tube compatibility. Pressure-system fittings can fall under the Pressure Equipment (Safety) Regulations 2016 depending on fluid, pressure and size. Agree applicable conformity evidence with the system designer; where supplied as regulated pressure equipment, English instructions are required.
Worked duty example
Illustrative example, not a quote: 1,200 aluminium butt-weld reducing tees; illustrative order under 7609 00 00 90, invoiced at £24,000 free on board, with £1,200 of freight and insurance to the UK. The customs value is £25,200. Duty at 4% is £1,008. Import VAT at 20% is charged on the customs value plus duty, £26,208, so it is £5,241.60. Import taxes total £6,249.60; a VAT-registered importer can usually reclaim the VAT, so the lasting cost is the £1,008 of duty. The import duty and VAT guide explains each step.
Inspection checklist
Geometry: measure run and branch bores, wall thickness, branch position and end alignment against the approved drawing before shipment and on arrival.
Joint fit: trial-fit mating tubes; check weld preparations, thread gauges or compression sealing surfaces according to the ordered connection.
Material and surface: match alloy and temper certificates to the batch; inspect the branch junction for cracks, visible porosity, burrs and trapped machining debris.
Tests and packing: review agreed pressure and leak test reports, batch identification and end protection. Use the quality inspection guide to brief the inspection.
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What goes wrong
A tee can match the run diameter while its branch bore or wall differs from the drawing. Poor end alignment complicates welding, thin material at the branch junction weakens the fitting, and internal burrs can obstruct flow. A substituted alloy or temper can also change machining and joining behaviour.
Approve a sample against the actual mating tube and retain its drawing and material records. Keep size variants separately identified on arrival. Do not accept a pressure test report for a different tee geometry as evidence for the ordered reducing tee.
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 aluminium reducing tees from China?
The supplied tariff data, read on 2 October 2026, gives 4% duty under 7609 00 00 90, with no listed anti-dumping or countervailing duty.
Which dimensions should I give the factory?
Specify run and branch diameters separately, plus bores, wall thicknesses, branch position, end preparation and overall dimensions. Include tolerances and the mating tube drawing.
Do aluminium reducing tees need pressure equipment evidence?
Pressure-system use can fall under the Pressure Equipment (Safety) Regulations 2016 depending on fluid, pressure and size. Agree the applicable evidence with the system designer.
What should I check when the tees arrive?
Check run and branch dimensions, joint fit, internal burrs, branch-junction defects and batch identification. Match material certificates and agreed test reports to the delivered variants.