Other

This code covers seamless tubes and pipes of iron or steel specifically used as casing for oil and gas drilling. Use this code when importing these products, as the general duty is free, but may be subject to standard trade partner rules or eligibility for FTA programs as detailed in Chapter 73.

Detailed information for HTS Code 7304.29.20

This tariff code falls within Chapter 73, which covers articles of iron or steel. Specifically, code 7304.29.20 covers seamless tubes and pipes used as casing in oil or gas drilling, made of iron or nonalloy steel. Further breakdowns exist based on outside diameter and wall thickness, indicated by the last two digits of the code—choose the suffix that accurately reflects these measurements for the specific product being classified, with options for diameters under 215.9mm, between 215.9-285.8mm, between 285.8-406.4mm, or exceeding 406.4mm, and corresponding wall thicknesses. These subdivisions allow for a more precise categorization of the steel casing based on its physical dimensions.

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 7304.29.20 and all its subdivisions is Free, meaning no duty is assessed on goods falling under this classification. Goods eligible for Standard Trade Partner (NTR) status also receive this free rate. Special rates are not specified, but may be available under Eligible FTA or preference programs. All reported quantities must be in kilograms (kg). This consistent duty structure applies across all subdivisions (7304.29.20.10 through 7304.29.20.80), regardless of outside diameter or wall thickness specifications, as long as the goods meet the overall description of seamless casing for oil or gas drilling, made of iron or nonalloy steel.

Rate of Duty (Column 2): 1%

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Code subdivisions

7304.29.20.10

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter less than 215.9 mm: > Having a wall thickness less than 12.7 mm

7304.29.20.20

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter less than 215.9 mm: > Having a wall thickness of 12.7 mm or more

7304.29.20.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: > Having a wall thickness less than 12.7 mm

7304.29.20.40

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter of 215.9 mm or more but not exceeding 285.8 mm: > Having a wall thickness of 12.7 mm or more

7304.29.20.50

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter exceeding 285.8 mm but not exceeding 406.4 mm: > Having a wall thickness less than 12.7 mm

7304.29.20.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > 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

7304.29.20.80

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Casing, tubing and drill pipe, of a kind used in drilling for oil or gas: > Other: > Casing: > Of iron or nonalloy steel: > Other > Having an outside diameter exceeding 406.4 mm

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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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November 15, 2025

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