China HS → US HTS
China HS 7304.4910 (锅炉管): US HTS candidates & duty rates
China tariff line for "锅炉管" shares the international HS6 anchor 730449 with 5 US HTS candidates below. Compare descriptions, then calculate landed duty.
Updated
China HS 7304.4910 most commonly maps to US HTS 7304.49.00. Total duty rate from China (MFN + Chapter 99 overlays): about 25%. Verify the description before filing.
China tariff line facts
| China HS line | 7304.4910 |
|---|---|
| Description | 锅炉管 |
| Category path | 无缝钢铁管及空心异型材（铸铁 的除外） > 不锈钢的其他圆形截面管 > 其他 > 锅炉管 |
| Shared HS6 | 730449 |
| China MFN rate (reference) | 8 |
| Schedule version | 2026 |
US HTS candidates (5)
| US HTS | Description | General (MFN) | Total from China |
|---|---|---|---|
| 7304.49.00 | Other | Free | 25% |
| 7304.49.00.05 | Of high-nickel alloy steel | Free | 25% |
| 7304.49.00.15 | Hollow bars | Free | 25% |
| 7304.49.00.45 | Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters | — | — |
| 7304.49.00.60 | Other | — | — |
Total = MFN base + Section 301 / IEEPA / reciprocal overlays active for China origin. AD/CVD not included.
Frequently asked questions
Which US HTS code corresponds to China HS 7304.4910?
There is no one-to-one mapping: only the first six digits (HS6 730449) are shared internationally. Under this anchor the US schedule has 5 candidate lines; the most common is 7304.49.00. Match your product facts (material, use, construction) against the descriptions to pick the right one.
How much is US import duty for "锅炉管" from China?
Using the leading candidate 7304.49.00, the total rate from China is about 25% — MFN base plus the Chapter 99 overlays (Section 301 / IEEPA / reciprocal) active for China origin. Other candidates may differ, so verify classification first.
Why is China HS8 not identical to US HTS8?
The WCO Harmonized System is only agreed to six digits. China extends HS6 to 8/10-digit national lines for its own tariffs and statistics, and the US does the same with HTS8/HTS10 — the extensions are independent, so codes must be bridged via HS6.
How do I confirm the final HTS classification?
Compare the US line descriptions against your product facts, check CBP rulings for similar goods, and when in doubt request a binding ruling. The bridge tool lets you re-run this query and compare all candidates side by side.