Of iron or nonalloy steel

This code covers seamless tubes and pipes of iron or nonalloy steel, specifically line pipe used for oil or gas pipelines. Use this code when importing these products, noting the general duty is free, but may be subject to standard trade partner or FTA/preference program rates depending on origin and eligibility.

Detailed information for HTS Code 7304.19.10

This tariff code falls within Chapter 73, which covers articles of iron or steel. Specifically, code 7304.19.10 covers seamless tubes, pipes, and hollow profiles of iron or nonalloy steel used as line pipe for oil or gas pipelines, excluding those covered by more specific codes. Several subdivisions exist based on outside diameter and wall thickness, ranging from those not exceeding 114.3 mm (7304.19.10.20) to those exceeding 406.4 mm (7304.19.10.80), or specific diameter/thickness combinations like 215.9-406.4 mm with a wall thickness less than 12.7 mm (7304.19.10.45); choose the statistical suffix that accurately reflects these dimensional characteristics of the pipe being classified.

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

Rate of Duty (Column 2): 25%

Need help importing?
_

Submit your details, and our team will confirm the correct classification and answer your questions.

Code subdivisions

7304.19.10.20

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Line pipe of a kind used for oil or gas pipelines: > Other: > Of iron or nonalloy steel > Having an outside diameter not exceeding 114.3 mm

7304.19.10.30

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Line pipe of a kind used for oil or gas pipelines: > Other: > Of iron or nonalloy steel > Having an outside diameter exceeding 114.3 mm but less than 215.9 mm

Parent subheading for dairy herd replacements

7304.19.10.45

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Line pipe of a kind used for oil or gas pipelines: > Other: > Of iron or nonalloy steel > Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm: > Having a wall thickness less than 12.7 mm

7304.19.10.60

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel: > Line pipe of a kind used for oil or gas pipelines: > Other: > Of iron or nonalloy steel > Having an outside diameter of 215.9 mm or more but not exceeding 406.4 mm: > Having a wall thickness of 12.7 mm or more

7304.19.10.80

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

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

Latest update

Last updated

November 15, 2025

Revised every January & July

Let's get your shipment cleared

Submit your details and our team will help with classification and compliance.