Sourcing duplex stainless steel sheets from China
Duplex stainless steel sheets from China carry 0% UK duty across the supplied lines, with no listed trade remedy. Classification depends on width, thickness, rolling and nickel content; the duplex description alone does not determine the code. Match each heat to its mill certificate. Cambridge China Bridge sources duplex stainless steel sheets.
Duty and classification for duplex sheets
Read from the UK Trade Tariff on 1 October 2026, heading 7219 covers stainless steel flat-rolled products at least 600 mm wide. Duplex sheets are a product family within that heading. The selected lines cover hot-rolled sheets not in coils and cold-rolled sheets; the nickel split must match the actual grade.
The supplied lines carry 0% third-country duty for goods from China. They list no anti-dumping or countervailing duty, suspension, steel measure or attached import control. Confirm with the relevant authority or your customs broker whether the UK carbon border adjustment mechanism will apply to these stainless flat products for your planned imports; ask the mill for emissions data when planning future orders.
Confirm the commodity code using width, thickness, rolling condition, nickel content and country of consignment. Do not choose a country-specific branch simply because its thickness matches. See the stainless steel sheet and coil guide for the wider heading.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Hot-rolled sheets, 4.75–10 mm thick, nickel at least 2.5% | 7219 22 10 90 | 0% | None |
| Hot-rolled sheets, at least 3 mm but below 4.75 mm thick | 7219 23 00 90 | 0% | None |
| Cold-rolled sheets, 3–below 4.75 mm thick, nickel at least 2.5% | 7219 32 10 90 | 0% | None |
| Cold-rolled sheets, above 1–below 3 mm thick, nickel at least 2.5% | 7219 33 10 90 | 0% | None |
Specify the duplex grade and delivery condition
Write the exact duplex grade into the order rather than accepting 'duplex stainless' as the specification. State the intended fabrication and service conditions, required chemistry and mechanical properties, heat treatment condition, surface finish, thickness tolerance, width, length, flatness and edge condition.
Ask for a mill inspection certificate for each heat showing chemical composition and mechanical results, matched to sheet markings. Agree any additional corrosion or microstructure testing with your technical adviser before ordering, including the sampling method and acceptance criteria. Keep an approved finish sample for comparison.
Worked duty example
Illustrative example, not a quote: Illustrative order: 25 tonnes of cold-rolled duplex stainless steel sheets under 7219 33 10 90, invoiced at £55,000 free on board, with £3,500 of freight and insurance to the UK. The customs value is £58,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £58,500, so it is £11,700. 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
Grade and heat: match sheet markings to the mill certificate and ordered duplex grade; arrange independent chemistry checks where substitution would affect the application.
Condition and properties: check the documented heat treatment condition and mechanical results against the purchase specification; review any agreed corrosion or microstructure test reports.
Dimensions and surface: measure thickness across sampled sheets, width and length; check flatness, burrs, scratches and staining beneath the protective film during inspection.
Packing: check dry wrapping, edge protection and secure supports. Inspect solid wood pallets and crates for a legible compliance mark; officially marked wood packaging meets the standard without a separate phytosanitary or treatment certificate.
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What goes wrong
A similar-looking stainless grade can arrive against a duplex order, or certificates can be copied between heats. A chemistry result alone does not demonstrate every agreed property or delivery condition. Hold sheets with missing traceability or incomplete test results until the mill resolves the discrepancy.
Thin areas, bowed sheets and damaged edges cause problems during cutting and fabrication. Protective film can hide scratches or leave adhesive residue. Record arrival defects against the sheet markings and retain samples before processing the batch.
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 duplex stainless steel sheets from China?
The supplied heading 7219 lines carry 0% duty from China, with no listed trade remedy, suspension or steel measure. Confirm the exact line from rolling condition, dimensions and nickel content.
Which commodity code covers duplex stainless steel sheets?
There is no separate duplex code in the supplied facts. Choose the stainless flat-product line by width, thickness, rolling condition, nickel content and consignment route.
What documents should I request from the duplex mill?
Request heat-matched mill certificates with chemistry, mechanical results and delivery condition, plus reports for any additional tests agreed in your purchase specification.
How do I check that the sheets are the ordered duplex grade?
Match sheet heat markings to certificates, compare results with the ordered grade, and arrange independent sample testing where the application requires it. Appearance alone is insufficient.