Sourcing aluminium pipe crosses from China

UK duty on aluminium pipe crosses

Read from the UK Trade Tariff on 2 October 2026, heading 7609 covers aluminium tube or pipe fittings. Ordinary aluminium pipe crosses fall within the “Other” line, 7609 00 00 90. The table distinguishes cross types sharing that code; the specialised automotive connection-block lines are not general cross-fitting categories.

The supplied data shows 4% duty for goods from China across this heading, with no anti-dumping or countervailing duties, suspensions or attached import controls listed. Ask your customs broker to confirm whether and when the UK carbon border adjustment mechanism applies to these aluminium fittings; see our UK carbon border adjustment guide.

Confirm the commodity code using the drawing, material and intended function before shipping. See the wider aluminium pipe fittings guide for related fittings.

Specify the cross body and every branch

Provide a drawing showing the main run, opposing branches, port orientation, centre-to-end dimensions and bore at each opening. State whether the cross is equal or reducing. Specify alloy and temper, wall thickness, connection method, thread form where used, sealing faces, seal material and surface finish.

State the fluid, working pressure and temperature range, and agree a suitable leak-test method with the system designer. Pressure equipment includes piping and pressure accessories. Crosses used in compressed-air, gas or refrigerant piping may fall under the Pressure Equipment (Safety) Regulations 2016 as part of the piping, depending on fluid, pressure and size. Agree the applicable conformity evidence before ordering.

Worked duty example

Illustrative example, not a quote: 1,200 aluminium pipe crosses, 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: compare branch orientation, centre-to-end dimensions, wall thickness and each bore against the approved drawing, before dispatch and on arrival.

Connections: gauge every threaded port and trial-fit mating parts; inspect compression seats or weld ends for damage, burrs and incorrect preparation.

Leaks and finish: have samples tested by a suitable facility using the agreed procedure; examine the branch junction, casting surface, seals and coating.

Documents and packing: match alloy and temper certificates and test reports to the batch; check port protection, carton descriptions and arrival damage. Use the inspection guide to brief the checks.

What goes wrong

A cross can match the outside dimensions while a branch bore is undersized or machining leaves burrs at the internal junction. Mixed thread forms, uneven sealing seats and unsuitable seals cause assembly problems and leaks. Cast porosity or substituted alloy can undermine the agreed pressure performance.

Approve a sample assembled with your actual mating parts, inspect internal passages and keep the drawing linked to batch test reports. Repeat these checks on arrival before releasing stock for installation.

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.