Tariff monitor · Metals & Mill Products

Steel pipe and tube: statutory & effective tariff rates

Name: Steel pipe and tube tariff rates, statutory and effective
Creator: MFG Calcs
License: https://creativecommons.org/licenses/by/4.0/

Statutory HTS duty rates for 78 steel pipe and tube tariff lines (MFN Free), from USITC. Effective rate May 2026: 42.96%; monthly history since 2014.

Statutory rates from the schedule

Seamless and welded steel pipe and tube, from process piping to mechanical tubing. This family covers HTS headings 7304, 7305, 7306: 78 eight-digit rate lines with MFN (column 1, general) rates of Free in the 2026 schedule.
Chapter 99 flags on individual lines mark Section 301/232 overlay provisions (e.g. 9903.91.01) that apply on top of the MFN column.

Latest month on record (2026-05): 42.96% effective on $480.9M of imports, versus 21% in the same month a year earlier. The monthly archive holds 149 observations from 2014-01 through 2026-05.
In 2025, U.S. imports for consumption in this family totaled $6.9B in customs value and paid $1.8B in calculated duties: an effective tariff rate of 25.63%. The effective rate captures Section 301/232 overlays, exclusions, and special-program use that the statutory column cannot.
A year earlier the effective rate was 4.68%, so the duty burden rose 20.9 points.
Top source countries in 2025: South Korea ($1.1B at 25.49%), Canada ($901.6M at 20.65%), Mexico ($652.4M at 23.22%), Germany ($460.1M at 23.04%), Japan ($399.9M at 20.12%).

Reference statistics derived from USITC published data. Not a customs ruling; verify rates with a licensed customs broker before relying on them.

Last reviewed 2026-05-12.