7304.59.20—Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heatersGeneral duty rate
Free
Across 7 10-digit lines
Coverage on this page
Up one level: 7304.59 — Other: (subheading)
HTS 7304.59.20 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters. It sits in Chapter 73: Articles of iron or steel, Section XV: Base Metals and Articles of Base Metal and rolls up 7 10-digit statistical lines, all with a general duty rate of Free. 21 Chapter 99 flags link to one or more child lines (4 active, 17 expired), and 1 potentially relevant AD/CVD order flag links to at least one child line.
Pick a line to view its exact rate and estimate duties and customs fees
7304.59.20.30Of heat-resisting steelFree7304.59.20.40Having an outside diameter less than 38.1 mmFree7304.59.20.45Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mmFree7304.59.20.55Having an outside diameter exceeding 114.3 mm but less than 190.5 mmFree7304.59.20.60Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mmFree7304.59.20.70Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mmFree7304.59.20.80Having an outside diameter exceeding 406.4 mmFreeProvisions linked to one or more lines under 7304.59.20; applicability depends on origin, product facts, claims, and entry date
| Code | Authority | Rate |
|---|---|---|
| 9903.80.01 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.80.61 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.83 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.85 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.81.87 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.88 | section_232Expired | The duty provided in the applicable subheading + 50%. |
| 9903.81.94 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.82.02 | section_232Active | 50% |
| 9903.82.04 | section_232Active | 25% |
| 9903.81.95 | section_232Expired | The duty provided in the applicable subheading + 25% |
| 9903.82.18 | section_232Active | no change |
| 9903.91.01 | section_301Active | The duty provided in the applicable subheading + 25% |
| 9903.80.24 | section_232Expired | Free |
| 9903.80.84 | section_232Expired | Free |
| 9903.80.25 | section_232Expired | Free |
| 9903.81.44 | section_232Expired | Free |
| 9903.81.45 | section_232Expired | Free |
| 9903.81.42 | section_232Expired | Free |
| 9903.80.22 | section_232Expired | Free |
| 9903.80.82 | section_232Expired | Free |
| 9903.80.85 | section_232Expired | Free |
HTS-linked orders for one or more lines under 7304.59.20; written scope controls whether a product is covered
HTS 7304.59.20 is an 8-digit tariff item of the U.S. Harmonized Tariff Schedule covering Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters. It belongs to Chapter 73 and rolls up 7 10-digit statistical lines that brokers actually file at entry.
Every 10-digit line under HTS 7304.59.20 carries a general (Column 1) duty rate of Free. Chapter 99 flags and potentially relevant AD/CVD order flags are shown at the per-line level; applicability depends on the shipment facts, written scope, and entry date.
Tandom links section_232 provision 9903.80.01 to HTS 7304.59.20. Its published rate notation is The duty provided in the applicable subheading + 25%, and its status on 2026-09-26 is expired. 20 additional Chapter 99 flags also link to this code. A flag is not a shipment-level determination; check origin, product facts, claims, and entry date.
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader tariff item HTS 7304.59.20 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Tandom links 1 potentially relevant AD/CVD order flag to at least one 10-digit line under HTS 7304.59.20. An HTS link is a screening aid; whether a shipment is covered depends on the order's written product scope and country of origin. Use the linked lookup to review the case materials.
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