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U.S. imports of seamless iron or nonalloy steel circular tubes & pipes, not cold-drawn or cold-rolled (HS 730439) totaled $11.6M in July 2026, traded with 28 countries.
Importers of Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled paid $4.8M in duties in July 2026 — an effective duty rate of 42% on $11.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled imports of $11.6M in July 2026 ran 15% above the year-to-date monthly average of $10.0M.
Last updated: July 2026 dataHot-finished seamless tubes of iron or nonalloy steel serve as workhorses across the oil and gas, construction, and industrial piping sectors, where dimensional precision requirements are less stringent than for cold-worked equivalents. These products are subject to Section 232 tariffs, and China — the leading supplier — has also faced antidumping and countervailing duty orders on certain circular welded and seamless pipe products, making correct classification and scope review essential before entry. The US tariff schedule is unusually granular here, subdividing lines by outer diameter (from under 38.1 mm through over 406.4 mm) and wall thickness, with separate provisions for boiler tubes and galvanized pipe. Italy and Germany are significant European sources alongside China and India.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
302 shipments/mo
The dimensional breakouts reflect both duty-rate differentiation and the practical need to align HTS lines with industry specifications such as ASTM A53 and A106 schedules. Outer diameter and wall thickness are objectively measurable at the port of entry, whereas end-use claims are harder to verify. Importers must declare the correct OD and wall thickness on entry documentation; misclassification between size brackets can trigger penalty exposure.
Yes. US trade remedy orders have historically covered certain seamless pipe and tube products from China. Importers should check the current scope of active antidumping and countervailing duty orders with CBP or a licensed customs broker before shipment, as scope rulings can extend to products that appear to fall outside the literal description of an order.
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Subheading 6 of 13 in heading 7304
Subheading 730439 · $11.6M of $164.4M
ImportsExports
Imports
$11.6MYoY · Pro
Exports
$10.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304390000 | Oth Ios Na Ps Tb Hlw Pfl Smls Cir Cs Nt Cld-Wrkd | $10.8M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Imports · July 2026
origin
China and Germany together supply 67% of it.
customs district
destination
entry
rate provision · imports
the effective duty rate is 41.05%.