Sourcing cold-formed steel Z sections from China

Duty on cold-formed Z sections

Read from the UK Trade Tariff on 2 October 2026, heading 7216 covers angles, shapes and sections of iron or non-alloy steel. Code 7216 61 10 00 expressly includes Z sections obtained from flat-rolled products, not further worked than cold-formed or cold-finished. The table shows buying variants sharing this tariff line, rather than separate classifications. See the steel beams and sections guide for the wider heading.

The supplied snapshot gives this line a 0% duty rate for goods from China, with no steel measure, anti-dumping or countervailing duty, suspension or attached import control. Do not apply the hot-rolled section rate to these goods. Supply the broker with the material specification, section drawing and details of punching, coating or other processing, then confirm the commodity code. See UK import duty and VAT for the calculation method.

Confirm with your customs broker or the relevant authority whether these sections fall within the UK carbon border adjustment mechanism and whether it applies to your imports from 1 January 2027. Ask the mill for emissions information when planning future imports and consult the UK carbon border adjustment guide.

Specify the Z profile and its structural use

Attach a section drawing showing web depth, both flange widths, lip dimensions, bend radii, base steel thickness and finished length. State whether thickness excludes the coating. Agree the grade, dimensional tolerances, straightness, twist, coating specification and bundle identification. For punched purlins, give hole size, spacing, distance from the ends and lap orientation.

Ask the building designer to approve section properties, span assumptions, restraint and connection details. Agree which party supplies structural calculations. Similar-looking Z profiles can have different flange widths or lips, so check compatibility with the intended overlaps and cleats rather than ordering from a catalogue photograph.

For construction-product CE marking, a harmonised standard or a European Technical Assessment must cover the product. Manufacturers using that route must draw up a declaration of performance. Legitimately CE-marked construction products can continue to be supplied in Great Britain. Ask the supplier to identify the assessment route and provide documents covering the exact profile and intended use; use testing and certification support to review the evidence.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 tonnes of cold-formed steel Z sections under 7216 61 10 00, invoiced at £18,000 free on board, with £2,000 of freight and insurance to the UK. The customs value is £20,000. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £20,000, so it is £4,000. 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

Material: match mill certificates, grade and coil or heat references to bundle labels; check that reported mechanical properties match the purchase specification.

Profile: measure base steel thickness, web, flanges, lips and length against the drawing; inspect bend cracking, bow and twist.

Connections: check hole positions, burrs and end orientation; trial-fit representative overlaps and cleats before loading.

Coating and packing: inspect coating damage, white rust and wet bundles; check spacers, straps and protection at bundle ends. Record arrival condition using the quality inspection guide.

What goes wrong

Common failures include quoting coated thickness as steel thickness, substituting a weaker grade, reversing the hole pattern and supplying profiles that cannot nest at the planned lap. Wet packing can leave white rust between sections. Agree the drawing and inspection method before production, then compare the shipment with the approved sample.

A certificate for another profile or intended use does not establish the performance of the ordered purlin. Review the supplier's assessment documents before paying for production. Punching or fabrication can also change the classification question, so describe the finished goods to the broker rather than assuming that every Z-shaped steel item uses the same code.

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.