HSChapter 73
U.S. imports of seamless iron or nonalloy steel circular tubes & pipes, cold-drawn or cold-rolled (HS 730431) totaled $3.5M in April 2026, traded with 24 countries.
Importers of Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled paid $1.7M in duties in April 2026 — an effective duty rate of 49% on $3.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Cold-Drawn or Cold-Rolled imports of $3.5M in April 2026 ran 30% below the year-to-date monthly average of $5.1M.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7304316010 | TUBES,PIPE,HOLOW PROFILE,SMLS,NESOI,IRN/STL,BOILER | $2.1M | 49.80% | $1.0M |
| 7304316050 | TUBES,PIPE,HOLLO PROFIL,SMLS,IRN/STL,CIR SEC,NESOI | $1.4M | 46.10% | $576K |
| 7304313000 | HOLLOW BARS,SMLS,NESOI,IRN/STL,CIRCS,COLD-DRWN/ROL | $74K | 63.99% | $47K |
TUBES,PIPE,HOLOW PROFILE,SMLS,NESOI,IRN/STL,BOILER
TUBES,PIPE,HOLLO PROFIL,SMLS,IRN/STL,CIR SEC,NESOI
HOLLOW BARS,SMLS,NESOI,IRN/STL,CIRCS,COLD-DRWN/ROL
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304310000 | OTH IOS NA PS TB HLW PFL SMLS CIR CS COLD-WRKD | $2.2M |
OTH IOS NA PS TB HLW PFL SMLS CIR CS COLD-WRKD
472.4K kg
ARTICLES OF IRON OR STEEL NESOI
HS 732690
STRUCTURES AND PARTS NESOI OF IRON OR STEEL
HS 730890
THREADED SCREWS AND BOLTS NESOI OF IRON OR STEEL
HS 731815
COOKING APPLIANCES ETC FOR GAS FUEL, IRON OR STEEL
HS 732111
NUTS OF IRON OR STEEL
HS 731816
TABLE, KITCHEN ETC ARTICLES & PTS, STAINLESS STEEL
HS 732393
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $1.5M | -- | -$1.5M |
| LAREDO, TX | $462K | $411K | -$50K |
| NEWARK, NJ | $435K | -- | -$435K |