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HTS code reference›Chapter 73: Articles of iron or steel›7304.59.20

HTS Code 7304.59.20

Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters

Official tariff path

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: › Other, of circular cross section, of other alloy steel: › Other: › Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters

Level: hts8General duty: Free

What does HTS 7304.59.20 cover?

This provision appears in the 2026 Harmonized Tariff Schedule of the United States under the following legal tariff hierarchy. A product must match the wording and applicable section or chapter notes before this code is used on an entry.

  1. 1Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel:
  2. 2Other, of circular cross section, of other alloy steel:
  3. 3Other:
  4. 4Suitable for use in boilers, superheaters, heat exchangers, condensers, refining furnaces and feedwater heaters

More specific provisions

7304.59.20.30Of heat-resisting steel7304.59.20.40Having an outside diameter less than 38.1 mm7304.59.20.45Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm7304.59.20.55Having an outside diameter exceeding 114.3 mm but less than 190.5 mm7304.59.20.60Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm7304.59.20.70Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm7304.59.20.80Having an outside diameter exceeding 406.4 mm

Nearby tariff provisions

7304.59.10.00Suitable for use in the manufacture of ball or roller bearings7304.59.60.00Of heat-resisting steel7304.59.80Other
Official source and limitations

Based on USITC HTS 2026 Revision 12, published July 21, 2026. The general rate does not include every origin-specific program, Section 301 or 232 measure, antidumping or countervailing duty, quota, or other agency requirement.

Open this code in the official USITC search ↗