Chapter 73: Articles of iron or steel

HTS heading 7305: Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which ex…

33 numbered lines under heading 7305, including 21 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 7305
HTS codeDescriptionUnitGeneralSpecialColumn 2
7305Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel:
Line pipe of a kind used for oil or gas pipelines:
7305.11Longitudinally submerged arc welded:
7305.11.10Of iron or nonalloy steelNote: See 9903.90.09.Free5.5%
7305.11.10.30With an external diameter exceeding 406.4 mm but not exceeding 609.6 mmkg
7305.11.10.60With an external diameter exceeding 609.6 mmkg
7305.11.50.00Of alloy steelkgFree10%
7305.12Other, longitudinally welded:
7305.12.10Of iron or nonalloy steelNote: See 9903.90.09.Free5.5%
7305.12.10.30With an external diameter exceeding 406.4 mm but not exceeding 609.6 mmkg
7305.12.10.60With an external diameter exceeding 609.6 mmkg
7305.12.50.00Of alloy steelkgFree10%
7305.19Other:
7305.19.10Of iron or nonalloy steelFree5.5%
7305.19.10.30With an external diameter exceeding 406.4 mm but not exceeding 609.6 mmkg
7305.19.10.60With an external diameter exceeding 609.6 mmkg
7305.19.50.00Of alloy steelkgFree10%
7305.20Casing of a kind used in drilling for oil or gas:
Of iron or nonalloy steel:
7305.20.20.00Threaded or coupledkgFree20%
7305.20.40.00OtherkgFree1%
Of alloy steel:
7305.20.60.00Threaded or coupledkgFree28%
7305.20.80.00OtherkgFree8.5%
Other, welded:
7305.31Longitudinally welded:
7305.31.20.00Tapered pipes and tubes of steel principally used as parts of illuminating articleskgFree45%
Other:
7305.31.40.00Of iron or nonalloy steelkgFree5.5%
7305.31.60Of alloy steelFree10%
7305.31.60.10Of stainless steelkg
7305.31.60.90Otherkg
7305.39Other:
7305.39.10.00Of iron or nonalloy steelkgFree5.5%
7305.39.50.00Of alloy steelkgFree10%
7305.90Other:
7305.90.10.00Of iron or nonalloy steelkgFree5.5%
7305.90.50.00Of alloy steelkgFree10%

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.