With an inside diameter of 360 mm or more

This code covers tube or pipe fittings of iron or steel with an inside diameter of 360 mm or more, specifically butt welding fittings. Use this code when importing these fittings, keeping in mind a general duty of 4.3% applies, though preferential rates may exist for goods from eligible countries.

Detailed information for HTS Code 7307.93.90

This duty applies to articles within Chapter 73, which covers iron or steel products, specifically tube or pipe fittings. The 7307.93.90 code covers butt welding fittings of iron or steel with an inside diameter of 360 mm or more. Further breakdown exists based on material and processing: 7307.93.90.10 for non-alloy steel fittings not machined after forging, 7307.93.90.40 for other non-alloy steel fittings, and 7307.93.90.60 for alloy steel fittings (excluding stainless steel). Choose the correct statistical suffix based on the specific material and processing characteristics of the fitting.

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

4.30%

Standard trade partners (NTR)

Special Duty

Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

Eligible FTA or preference programs

The general duty rate for HTS code 7307.93.90 is 4.30% applying to all origins unless specifically covered by a preferential trade agreement. Several countries (A*, AU, B, BH, CL, CO, D, E, IL, JO, KR, MA, OM, P, PA, PE, S, SG) qualify for a Free (FTA) rate under eligible trade preference programs. This means goods originating from these countries and meeting the requirements of the applicable program will be duty-free. The duty rates apply equally to all subdivisions (7307.93.90.10, 7307.93.90.40, and 7307.93.90.60). Reporting units are in kilograms (kg).

Rate of Duty (Column 2): 45%

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Code subdivisions

7307.93.90.10

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more > Of iron or nonalloy steel: > Not machined, not tooled and not otherwise processed after forging

7307.93.90.40

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more > Of iron or nonalloy steel: > Other

7307.93.90.60

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Other: > Butt welding fittings: > With an inside diameter of 360 mm or more > Of alloy steel (except stainless steel)

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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