Of nonmalleable cast iron

This code covers tube and pipe fittings made of nonmalleable cast iron. It’s used to classify these iron fittings—typically couplings, elbows, or sleeves—and generally attracts a 4.80% duty, though preferential rates may apply for goods originating from certain countries or under specific trade agreements as detailed in the duty information.

Detailed information for HTS Code 7307.11.00

This tariff classification falls within Chapter 73, which covers articles of iron or steel, specifically dealing with tube or pipe fittings. The 7307.11.00 code covers cast fittings made of nonmalleable cast iron. This code further breaks down into subdivisions based on the fitting's purpose: 7307.11.00.30 for fittings designed for threaded pipe, 7307.11.00.45 for fittings specifically used with cast-iron soil pipe, and 7307.11.00.60 for all other nonmalleable cast iron fittings; use these suffixes to specify the precise type of fitting 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

4.80%

Standard trade partners (NTR)

Special Duty

Free (A*,AU,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 7307.11.00 and its subdivisions (7307.11.00.30, 7307.11.00.45, and 7307.11.00.60) is 4.80%, applying to goods originating from countries without specific trade agreements. However, a duty rate of Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) applies to goods originating from countries within those listed, provided they qualify under eligible FTA or preference programs. All quantities are to be reported in kilograms (kg). Section information is not specified.

Rate of Duty (Column 2): 25%

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Code subdivisions

7307.11.00.30

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron > For threaded pipe

Parent subheading for dairy herd replacements

7307.11.00.45

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron > Other: > For cast-iron soil pipe

7307.11.00.60

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: > Cast fittings: > Of nonmalleable cast iron > Other: > Other

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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