Base
HTS 7307Chapter 73

HTS 7307Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel: Duty Rate & Import Guide

Articles of Iron or Steel · 15 pending regulations · 15 court cases · $243.0M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$243.0M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

HIGH

7 rulings — · 15 reg · 9 CIT, 6 CAFC (15 recent)

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: N/A · 🇧🇷 Brazil: N/A

Compare All →

Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, Federal Register, CourtListener · As of 2026-04-29 · Updates monthly

Active DisputesRecent court cases or pending regulations affect this code
Regulatory Pressure

This code has elevated regulatory activity — 7 CBP rulings (0 in last 2 years, trend: stable), 15 pending Federal Register actions, and 15 CIT/CAFC cases.

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

High-Volume Code

This is a high-volume import code — $243M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.

Trade Remedy

Additional Tariffs Apply

Section 232 — Steel & Aluminum Tariffs+25%

Iron and steel articles

Active — 25% on steel, 25% on aluminum (aluminum raised from 10% to 25% effective March 12, 2025)

Effective 2018-03-23

These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →

Subheadings (56)

CodeDescriptionRate
7307.11.00Of nonmalleable cast iron4.8%
7307.11.00.30For threaded pipe
7307.11.00.45For cast-iron soil pipe
7307.11.00.60Other
7307.19Other:
7307.19.30Ductile fittings5.6%
7307.19.30.40Grooved-end fittings (including grooved couplings)
7307.19.30.60Threaded
7307.19.30.70With mechanical, push-on (rubber compression) or flanged joints attached
7307.19.30.85Other
7307.19.90Other6.2%
7307.19.90.30Unions
7307.19.90.40Grooved-end fittings (including grooved couplings)
7307.19.90.60Threaded
7307.19.90.80Other
7307.21Flanges:
7307.21.10.00Not machined, not tooled and not otherwise processed after forging3.3%
7307.21.50.00Other5.6%
7307.22Threaded elbows, bends and sleeves:
7307.22.10.00Sleeves (couplings)Free
7307.22.50.00Other6.2%
7307.23.00Butt welding fittings5%
7307.23.00.30Not machined, not tooled and not otherwise processed after forming
7307.23.00.90Other
7307.29.00Other5%
7307.29.00.30Nipples
7307.29.00.90Other
7307.91Flanges:
7307.91.10.00Of iron or nonalloy steel3.3%
7307.91.30.00Of alloy steel (except stainless steel)3.2%
7307.91.50Other5.5%
7307.91.50.10Of iron or nonalloy steel
7307.91.50.30Of alloy steel (except stainless steel)
7307.91.50.50Of iron or nonalloy steel
7307.91.50.70Of alloy steel (except stainless steel)
7307.92Threaded elbows, bends and sleeves:
7307.92.30Sleeves (couplings)Free
7307.92.30.10Of iron or nonalloy steel
7307.92.30.30Of alloy steel (except stainless steel)
7307.92.90.00Other6.2%
7307.93Butt welding fittings:
7307.93.30Of iron or nonalloy steel6.2%
7307.93.30.10Not machined, not tooled and not otherwise processed after forging
7307.93.30.40Other
7307.93.60.00Of alloy steel (except stainless steel)5.5%
7307.93.90With an inside diameter of <il>360 mm</il> or more4.3%
7307.93.90.10Not machined, not tooled and not otherwise processed after forging
7307.93.90.40Other
7307.93.90.60Of alloy steel (except stainless steel)
7307.99Other:
7307.99.10.00Of iron or nonalloy steel3.7%
7307.99.30.00Of alloy steel (except stainless steel)3.2%
7307.99.50Other4.3%
7307.99.50.15Nipples
7307.99.50.45Other
7307.99.50.60Of alloy steel (except stainless steel)

CBP Rulings (7)

C83243Classification

The tariff classification of cast iron soil pipe and fittings from Venezuela.

953800Classification

Protest No. 1101-93-100049; Ductile Iron, Grey Iron, and Aluminum Fence Fittings; HQ 953376; Explanatory Note 73.07; Explanatory Note 76.09; 8302.10.60

966958Classification

Revocation of NY I81109; Zinc-plated steel compression fittings from India

J89776Classification

The tariff classification of various steel couplings and parts and from Ireland.

870421Classification

The tariff classification of steel hose fittings from NewZealand.

874644Classification

The tariff classification of steel hose fittings fromGermany.

K83190Classification

The tariff classification of gray cast iron pipe fittings from China.

Federal Register (15)

View all 15+ regulations on Federal Register →

Court of International Trade & Federal Circuit (15)

View all 15+ cases on PACER →

Matching Export Code (Schedule B)

7307110030Schedule B

FITTINGS, NONMALLEABLE CAST IRON FOR THREADED PIPE

Census Bureau export classification matching this HTS import code.

7305.90.50.007307.11.00