Other

This code covers seamless tubes and pipes, primarily of alloy steel, with varying dimensions and wall thicknesses. Use this code when importing these products to accurately classify them for duty assessment under free trade agreements or standard trade partner rates, as detailed within Chapter 73 of the Harmonized Tariff Schedule.

Detailed information for HTS Code 7304.59.80

This tariff code falls within Chapter 73 of the Harmonized Tariff Schedule, which covers articles of iron or steel. Specifically, code 7304.59.80 covers seamless tubes, pipes, and hollow profiles of iron or steel, with a specific focus on those made of other alloy steel and not elsewhere specified. This code is further broken down by outside diameter and wall thickness, with numerous subdivisions (like 7304.59.80.10, 7304.59.80.15, etc.) to precisely classify the product based on these dimensions; select the appropriate subdivision based on the tube’s diameter and wall thickness to ensure accurate reporting. Note that duty is generally free, but may be subject to standard trade partner rules or eligibility for preference programs.

Chapter	Chapter 73 - Articles of iron or steel
Section	Section XV - Base Metals and Articles of Base Metal

Duty snapshot

Quick reference for the duty outcomes tied to this HTS line.

General Duty

Free

Standard trade partners (NTR)

Special Duty

N/A

Eligible FTA or preference programs

The general duty rate for HTS code 7304.59.80 is Free, meaning no duty is assessed on imports of these seamless alloy steel tubes and pipes. The general helper indicates Standard Trade Partners (NTR) apply, potentially subjecting imports from non-standard trade partners to higher rates, which is not specified. Special rates are also not specified, however, eligibility for FTA or preference programs could provide reduced or eliminated duties. All subdivisions (7304.59.80.10 through 7304.59.80.80) inherit these duty stipulations, and reporting is required in kilograms (kg). The U.S. notes clarify specific duty rates for tubes and pipes with fittings, and statistical notes define certain kegs for statistical reporting purposes, but don't impact the general duty structure.

Rate of Duty (Column 2): 35%

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Code subdivisions

7304.59.80.10

Parent subheading for dairy herd replacements

7304.59.80.15

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter of 38.1 mm or more but not exceeding 114.3 mm: > Having a wall thickness less than 6.4 mm

7304.59.80.20

7304.59.80.25

7304.59.80.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: > Having a wall thickness less than 12.7 mm

7304.59.80.35

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: > Having a wall thickness of 12.7 mm or more but less than 19 mm

7304.59.80.40

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 114.3 mm but less than 190.5 mm: > Having a wall thickness of 19 mm or more

7304.59.80.45

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: > Having a wall thickness less than 12.7 mm

7304.59.80.50

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: > Having a wall thickness of 12.7 mm or more but less than 19 mm

7304.59.80.55

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter of 190.5 mm or more but not exceeding 285.8 mm: > Having a wall thickness of 19 mm or more

7304.59.80.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: > Having a wall thickness less than 12.7 mm

7304.59.80.65

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: > Having a wall thickness of 12.7 mm or more but less than 19 mm

7304.59.80.70

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Other, of circular cross section, of other alloy steel: > Other: > Other: > Other: > Other > Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: > Having a wall thickness of 19 mm or more

7304.59.80.80

View HTS reference

Chapter & section notes

Chapter notes

Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes CHAPTER 73 ARTICLES OF IRON OR STEEL XV 73-1 Notes 1. In this chapter the expression "cast iron" applies to products obtained by casting in which iron predominates by weight over each of the other elements and which do not comply with the chemical composition of steel as defined in Note 1(d) to chapter 72. 2. In this chapter the word "wire" means hot- or cold-formed products of any cross-sectional shape, of which no cross-sectional dimension exceeds 16 mm. Additional U.S. Notes 1. For the purposes of heading 7304 or 7306, the rate of duty "Free (C)" appearing in the "Special" subcolumn applies only to tubes and pipes with attached fittings, suitable for conducting gases or liquids. 2. For the purposes of subheading 7307.19.30, the expression "ductile fittings" refers to fittings which contain over 2.5 percent carbon and over 0.02 percent of magnesium or of magnesium and cerium, by weight. Statistical Note 1. For the purposes of statistical reporting numbers 7310.10.0005, 7310.29.0020 and 7310.29.0055, “refillable stainless steel kegs, whether or not pressurized” refers to cylindrical kegs for liquid beverages, each keg with a domed top and bottom and a single neck piece, designed for a coupler (valve) system and an extractor tube (spear) by which the keg can be cleaned, filled and dispense the liquid contents. Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes XV 73-2

Section notes

SECTION XV BASE METALS AND ARTICLES OF BASE METAL XV-1 Notes 1. This section does not cover: (a) Prepared paints, inks or other products with a basis of metallic flakes or powder (headings 3207 to 3210, 3212, 3213 or 3215); (b) Ferrocerium or other pyrophoric alloys (heading 3606); (c) Headgear or parts thereof of heading 6506 or 6507; (d) Umbrella frames or other articles of heading 6603; (e) Goods of

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Last updated

November 15, 2025

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