Tariff monitor · Metals & Mill Products

Tanks, Vessels, and Gas Cylinders: Statutory & Effective Tariff Rates

Statutory HTS duty rates for 5 tanks, vessels, and gas cylinders tariff lines (MFN Free), from USITC. Effective rate May 2026: 40.71%; monthly history since 2014.

The short answer

  • The effective U.S. tariff on tanks, vessels, and gas cylinders was 40.71% in May 2026, up from 24.98% a year earlier — calculated duties actually paid divided by customs value, from USITC data. The statutory MFN rate is Free across 5 HTS lines in the 2026 schedule. Mexico is the largest source, holding 20% of 2025 imports.

Statutory rates from the schedule

  • Steel reservoirs, drums, and pressure and gas containers — bulk storage and process vessels on the plant floor. This family covers HTS headings 7309, 7310, 7311: 5 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. 9903.88.03) that apply on top of the MFN column.

What importers actually paid

  • Latest month on record (2026-05): 40.71% effective on $79.8M of imports, versus 24.98% 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 $1.3B in customs value and paid $300.7M in calculated duties: an effective tariff rate of 22.45%. 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 2.78%, so the duty burden rose 19.7 points.
  • Top source countries in 2025: Mexico ($267.4M at 10.03%), China ($181.1M at 59.2%), Canada ($176.9M at 9.62%), India ($105.8M at 23.82%), South Korea ($92.1M at 13.14%).

Representative rate lines

  • 7309.00.00: Reservoirs, tanks, vats and similar containers for any material (other than compressed or · MFN Free
  • 7310.10.00: Of a capacity of 50 liters or more · MFN Free
  • 7310.21.00: Cans which are to be closed by soldering or crimping · MFN Free
  • 7310.29.00: Other · MFN Free
  • 7311.00.00: Containers for compressed or liquefied gas, of iron or steel · MFN Free

Frequently asked questions

  • What is the U.S. tariff rate on tanks, vessels, and gas cylinders? Importers paid an effective rate of 40.71% in May 2026 (calculated duties ÷ customs value, USITC DataWeb). The statutory MFN rate is Free; Section 301/232 overlays and special programs explain the difference.
  • What is the statutory MFN duty rate for tanks, vessels, and gas cylinders? Free across the family's 5 eight-digit HTS lines in the 2026 Harmonized Tariff Schedule (headings 7309, 7310, 7311).
  • Which countries supply the most tanks, vessels, and gas cylinders to the U.S.? Top sources in 2025: Mexico ($267.4M at 10.03%), China ($181.1M at 59.2%), Canada ($176.9M at 9.62%). Sourcing is diversified: Mexico holds 20% of imports.
  • How much tanks, vessels, and gas cylinders does the U.S. import? $1.3B of customs value in 2025, paying $300.7M in calculated duties — an effective tariff of 22.45%.
  • Is the U.S. a net importer of tanks, vessels, and gas cylinders? Roughly balanced in 2025: $1.3B imported vs $1.4B exported.

About this data

  • 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.