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U.S. imports of seamless iron or nonalloy steel circular tubes & pipes, cold-drawn or cold-rolled (HS 730431) totaled $5.3M in July 2026, traded with 27 countries.
Importers of Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled paid $2.8M in duties in July 2026 — an effective duty rate of 53% on $5.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataCold-drawing and cold-rolling impart tighter dimensional tolerances and improved surface finish to these seamless circular-section tubes, making them preferred inputs for precision mechanical, hydraulic, and boiler applications. All imports of iron and nonalloy steel tubular products are subject to Section 232 tariffs, a factor that significantly affects landed cost calculations for US buyers. The US schedule breaks this heading into hollow bars (7304313000), boiler tubes (7304316010), and general-purpose tubes and pipes (7304316050), with Germany and Italy among the leading European suppliers alongside Mexico. Importers should verify mill certifications and wall-thickness tolerances against ASTM or ASME standards at the time of entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
251 shipments/mo
The critical distinction is the finishing method: 730431 covers seamless circular tubes of iron or nonalloy steel that have been cold-drawn or cold-rolled, while 730439 covers the same material produced by other methods (e.g., hot-finished). If a tube is hot-finished and then only straightened or lightly processed without a true cold-reduction pass, it typically falls under 730439. Importers should obtain mill process certifications to support the correct classification.
Exclusion requests filed with the Department of Commerce generally require a detailed product description including outer diameter, wall thickness, steel grade, and end-use application, along with evidence that a domestic source is unavailable or insufficient. Supporting mill test reports and purchase records demonstrating prior sourcing attempts from US producers strengthen the application.
HSChapter 73
Subheading 8 of 13 in heading 7304
Subheading 730431 · $5.3M of $164.4M
Supplier Network
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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7304316010 | Tubes,Pipe,Holow Profile,Smls,NESOI,Irn/Stl,Boiler | $3.5M | 52.97% | 100.00% | $1.8M |
| 7304316050 | Tubes,Pipe,Hollo Profil,Smls,Irn/Stl,Cir Sec,NESOI | $1.7M | 52.50% | 98.85% | $914K |
| 7304313000 | Hollow Bars,Smls,NESOI,Irn/Stl,Circs,Cold-Drwn/Rol | $102K | 49.55% | 100.00% | $50K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304310000 | Oth Ios Na Ps Tb Hlw Pfl Smls Cir Cs Cold-Wrkd | $1.3M |
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.
ImportsExports
Imports
$5.3MYoY · Pro
Exports
$1.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Romania and China together supply 41% of it.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; the effective duty rate is 52.75%.