Sourcing pressure-vessel plate from China

Plate dimensions and chemistry decide the duty

Read from the UK Trade Tariff on 29 September 2026, heading 7208 covers hot-rolled flat products of iron or non-alloy steel, at least 600 mm wide, without cladding, plating or coating. This guide covers uncoiled plate bought for pressure-vessel fabrication. Pressure-vessel use alone does not identify the commodity line. Alloy grades need separate classification. See the wider hot-rolled steel guide.

The selected thick non-alloy plate lines show 50% third-country duty and 73.70% residual anti-dumping. Thinner wide non-alloy plate under 7208 52 91 10 shows 0% third-country duty and 73.70% residual anti-dumping. Thinner, narrower plate under 7208 52 99 00 shows 50% third-country duty, 0.00% residual anti-dumping and 35.90% countervailing duty. No suspensions or attached import controls are recorded for these selected lines. Ask your broker how the listed measures interact before calculating landed cost.

For lines within the steel measure, quota availability can change the duty payable. Check the quota and any producer-specific remedy rate with your broker before shipment. The heavy-plate notice states that its anti-dumping duty ceases to apply on 1 March 2027; check for subsequent notices before declaring. Confirm the commodity code using chemistry, thickness, width, rolling condition and any further processing.

Specify plate for the vessel design

Have the vessel designer approve the material specification before ordering. Specify grade, product specification, delivery and heat-treatment condition, plate dimensions, thickness tolerance, flatness and edge condition. Agree the required tensile, yield, elongation and impact results, including test temperature and specimen orientation. Where the design needs ultrasonic examination, agree the examination method, coverage and acceptance criteria.

Pressure-equipment materials must be suitable for their application throughout the scheduled lifetime unless replacement is foreseen. Ask the mill for inspection certificates tied to each heat and plate, showing chemistry, mechanical results and heat-treatment condition. Agree how plate identity will remain traceable after cutting. Do not accept an unapproved grade substitution because its strength appears similar.

Worked duty example

Illustrative example, not a quote: Illustrative order: 20 tonnes of wide non-alloy pressure-vessel plate under 7208 52 91 10, 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

Identity: match plate markings and heat numbers to the packing list and mill certificates; resolve mixed heats or missing identification before releasing stock.

Test results: compare chemistry, strength, elongation and impact results with the approved specification; check the test temperature, specimen direction and delivery condition.

Dimensions and condition: measure thickness, width, length and flatness; inspect edges and surfaces for cracks, pitting, gouges and transport damage.

Internal quality: check any agreed ultrasonic reports identify the delivered plates and record coverage and acceptance results. Use the quality inspection guide to prepare the inspection brief.

What goes wrong

A certificate may describe the correct grade but refer to a different heat, or omit the impact results needed by the vessel designer. Plate can arrive in an unapproved heat-treatment condition, with excessive thickness variation or internal laminations. Losing heat identity during cutting makes later verification difficult.

Customs problems arise when the declaration follows the supplier's description instead of the plate's chemistry and dimensions. Assuming that pressure-vessel use removes a trade remedy can distort the buying decision. Reconcile the material documents and broker's classification before dispatch, then hold any non-conforming plate apart from accepted stock.

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.