7304.59.20—Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters
General duty rate
Free
Across 7 10-digit lines
Plain-English explanation
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 tariff modifications currently touch one or more lines under this tariff item, and 1 AD/CVD order flags at least one child line.
10-digit lines under 7304.59.20(7)
Pick a line to view full rate detail and compute landed duty
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 mmTariff modifications(21)
Chapter 99 overlays touching one or more lines under 7304.59.20
| Code | Authority | Rate |
|---|---|---|
| 9903.80.01 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.80.61 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.81.83 | section_232 | The duty provided in the applicable subheading + 25% |
| 9903.81.85 |
AD/CVD orders(1)
Antidumping or countervailing orders covering one or more lines under 7304.59.20
Frequently asked questions
What does HTS 7304.59.20 cover?
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.
What is the duty rate for HTS 7304.59.20?
Every 10-digit line under HTS 7304.59.20 carries a general (Column 1) duty rate of Free. Section 301, Section 232, and AD/CVD overlays may stack on top of this rate at the per-line level — open a specific 10-digit code to see its complete tariff stack.
How do I find the right 10-digit line under HTS 7304.59.20?
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.
Are there AD/CVD orders affecting HTS 7304.59.20?
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