Sourcing S7 tool steel bars from China
S7 tool steel bars from China carry listed UK duties of 0% to 50%, depending on processing. Classify the supplied condition rather than the grade name alone. The hot-rolled line's anti-dumping measure concerns high-fatigue-performance rebar, so confirm the exemption declaration. Cambridge China Bridge sources S7 tool steel bars.
Duty depends on how the S7 bar is processed
Read from the UK Trade Tariff on 1 October 2026, heading 7228 covers other alloy steel bars and rods, sections and hollow drill bars. For S7 tool steel bars, the relevant listed rates are 0% for hot-rolled, forged and other tool steel bars, and 50% for cold-formed or cold-finished tool steel bars. The published background guide explains that the cold-finished rate can be 0% within available steel quota; confirm availability with your broker.
The hot-rolled tool steel line lists a residual anti-dumping rate of 22.50%. As explained in the published background guide, this measure covers high-fatigue-performance concrete reinforcing bar, rather than ordinary S7 tool steel bars; other bars use additional code 8W01 for exemption. The selected lines list no countervailing duty, suspensions or attached import controls. This does not replace checking the supply chain.
Confirm the commodity code using the mill's chemistry and processing history, including any finishing after forging or rolling. See the A2 tool steel bars guide for wider heading context. Confirm with HMRC or your customs broker whether and when these steel lines fall within the UK carbon border adjustment mechanism; ask the mill for emissions data.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Tool steel bars, not further worked than hot-rolled, hot-drawn or extruded | 7228 30 20 00 | 0% | 22.50% residual anti-dumping |
| Tool steel bars, not further worked than forged | 7228 40 10 00 | 0% | None |
| Tool steel bars, not further worked than cold-formed or cold-finished | 7228 50 20 00 | 50% | None |
| Other tool steel bars | 7228 60 20 90 | 0% | None |
Specify S7 chemistry, condition and machining allowance
Write S7 into the purchase specification alongside the agreed grade standard and chemical acceptance limits. Ask the mill to identify any proposed equivalent and provide its chemistry for approval. Describe the intended tooling application so that the heat treater can review the material before purchase.
Specify round or flat section, dimensions, straightness, surface finish and machining allowance. State whether the bars must arrive annealed or heat-treated, with agreed hardness acceptance criteria. Ask for heat-specific inspection certificates and any ultrasonic testing needed for the application. Review the mill's capability through factory verification.
Worked duty example
Illustrative example, not a quote: Illustrative order: 20 tonnes of forged S7 tool steel bars for a tooling stockholder under 7228 40 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
Identity: match bar and bundle heat markings to the inspection certificate, packing list and ordered S7 grade.
Chemistry and condition: independently check representative material from each heat against the agreed composition and supplied hardness condition.
Dimensions and surface: measure section, length and straightness; examine scale, seams, rust and surface damage against the agreed machining allowance.
Internal quality and packing: review agreed ultrasonic results, inspect cut ends and confirm moisture protection and secure bundles on arrival.
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What goes wrong
A supplier offers an unapproved equivalent, mixes heats or supplies a condition that makes machining difficult. Surface decarburisation and internal defects can become apparent during machining or heat treatment. Keep suspect heats separate and arrange a machining and heat-treatment trial before releasing them for production.
A cold-finished bar is quoted using the duty for a hot-rolled bar, or the hot-rolled anti-dumping exemption is overlooked. Have the broker review the actual processing route and declaration. UK guidance says traders should be prepared to provide supply-chain documentation consistent with sanctions prohibitions; request traceable mill records rather than relying only on a Chinese shipping address.
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 S7 tool steel bars from China?
The supplied tariff lists 0% for hot-rolled, forged and other tool steel bars, and 50% for cold-finished bars. The background guide explains quota relief for cold-finished bars. Confirm the actual processing route.
Does the listed anti-dumping duty apply to S7 bars?
The hot-rolled line lists 22.50%, but the background guide limits the measure to high-fatigue-performance rebar. Ordinary S7 bars use exemption code 8W01; have your broker confirm the declaration.
Can I accept a Chinese equivalent to S7?
Ask for the proposed grade standard, heat chemistry and supplied condition. Have your tooling engineer or heat treater approve the substitution before ordering.
What should I check when S7 bars arrive?
Match heat markings to certificates, check chemistry and supplied hardness, measure dimensions and straightness, and inspect surface damage. Review any agreed ultrasonic testing before releasing the material.