Sourcing silicon-manganese wire from China
Silicon-manganese solid welding wire from China carries 0% UK duty across the relevant codes, with no listed trade remedy. Classification depends on diameter and alloy chemistry, rather than the coating alone. Specify the welding classification and obtain a batch analysis certificate. Cambridge China Bridge sources silicon-manganese solid welding wire.
Duty and classification for solid welding wire
Read from the UK Trade Tariff on 1 October 2026, heading 7229 covers wire of other alloy steel. Code 7229 20 00 10 covers silicon-manganese wire of 0.6 to 4 mm diameter, with carbon not exceeding 0.2%, silicon from 0.6% to 1.4% and manganese from 0.9% to 1.9%, without another element making it a different alloy steel. Copper, bronze or wax/oil coatings do not exclude it.
Both relevant codes carry 0% duty for goods from China. The supplied tariff data lists no anti-dumping or countervailing duty, steel measure or suspension. The coating variants in the table share a code. The tariff attaches import and export waste controls. Waste shipment controls apply only when the material is waste; for waste wire from China, ask your customs broker to confirm the applicable requirements before shipment.
Match diameter and the batch chemistry to the tariff description, and confirm the commodity code. Other silicon-manganese wire falls under 7229 20 00 90. See the wider alloy steel and welding wire guide. Ask HMRC or your customs broker to confirm whether and when these codes fall within the UK Carbon Border Adjustment Mechanism; obtain supplier emissions information when planning imports confirmed to be covered by that scheme.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Copper-coated silicon-manganese solid wire meeting the specified diameter and chemistry | 7229 20 00 10 | 0% | None |
| Other silicon-manganese solid wire outside the specified diameter or chemistry | 7229 20 00 90 | 0% | None |
Specify chemistry, winding and welding performance
Specify the solid-wire classification to ISO 14341, diameter and tolerance, coating, spool or drum format, net weight, cast and helix, surface cleanliness and moisture protection. Agree the certificate of analysis supplied for each batch. For structural fabrication, agree the inspection certificate required by the fabricator's welding procedures.
Approve a sample through a feeding and welding trial on the equipment and shielding gas intended for production. Record the agreed wire specification and acceptance checks in the purchase order so a change of coating, winding or batch cannot pass unnoticed.
Worked duty example
Illustrative example, not a quote: 20 tonnes of solid welding wire on spools, illustrative only under 7229 20 00 10, invoiced at £22,000 free on board, with £2,500 of freight and insurance to the UK. The customs value is £24,500. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £24,500, so it is £4,900. 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
Traceability: match spool and carton batch identifiers to the certificate of analysis; check carbon, silicon and manganese against the ordered classification.
Dimensions and feeding: measure sampled wire with a micrometer, check cast and helix, and run a feed trial to identify tangles or inconsistent delivery.
Surface: inspect for rust, contamination and loose coating; check whether coating flakes accumulate in the liner during feeding.
Packing: check layer winding, spool damage, sealed moisture protection and carton crushing on arrival. Use the quality inspection guide to agree checks before dispatch.
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What goes wrong
Matching the diameter does not establish that the chemistry or welding classification is correct. A certificate for another batch leaves the delivered wire unverified. Poor winding or unsuitable cast causes feeding interruptions, while loose coating can clog liners.
Moisture damage can turn acceptable factory samples into rusty stock on arrival. Check packing before dispatch and inspect incoming batches before releasing them to customers. Keep affected spools separate while the supplier investigates, using the batch identifiers and inspection photographs.
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 silicon-manganese welding wire from China?
The supplied tariff data, read on 1 October 2026, gives 0% for 7229 20 00 10 and 7229 20 00 90, with no listed trade remedy or steel measure.
Does copper coating change the welding wire commodity code?
Code 7229 20 00 10 expressly includes copper-coated, bronze-coated and wax/oil-coated wire. Diameter and alloy chemistry must still match its description.
What certificate should I request for solid welding wire?
Request a certificate of analysis for each batch, matched to the spool identifiers and ordered welding classification. Agree any additional inspection certificate with the fabricator.
Why does solid welding wire jam in the feeder?
Check winding, cast and helix, diameter consistency and loose coating. Run a trial with the intended spool holder, liner and feed equipment before approving the batch.