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HSChapter 73
U.S. imports of seamless iron or nonalloy steel circular tubes & pipes, not cold-drawn or cold-rolled (HS 730439) totaled $11.0M in April 2026, traded with 25 countries.
Importers of Seamless Iron or Nonalloy Steel Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled paid $6.2M in duties in April 2026 — an effective duty rate of 55% on $11.3M 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 $11.0M in April 2026 ran 23% above the year-to-date monthly average of $9.0M.
Last updated: April 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.
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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| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $4.7M | $41K | -$4.7M |
| CANADA | $864K | $1.2M | +$335K |
| SAUDI ARABIA | -- | $1.6M | +$1.6M |
| MEXICO | $341K | $890K | +$548K |
| INDIA | $1.2M | -- | -$1.2M |
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 |
|---|---|---|---|---|
| 7304390002 | TUBS,PIPE,HOLOW PROFIL,SMLS,IRN/STL,BOIL,LT 38.1MM | $1.8M | 74.95% | $1.3M |
| 7304390056 | PIPE,SMLS,NESOI,DIAM 190.5-285.8,WALL GT=19MM | $1.2M | 65.23% | $773K |
| 7304390072 | PIPE,SMLS,IR/STL,NESOI,DIAM 285.8-406.4WAL GT 19MM | $1.2M | 56.70% | $662K |
| 7304390080 | TUBE,PIPE,SMLS,I/S,NESOI,DIAM GT 406.4,WAL GT=19MM | $1.0M | 70.67% | $877K |
| 7304390024 | TUBE,SMLS,IR/STL,NESOI,38.1 LT=114.3 WAL LT 6.4MM | $961K | 48.62% | $467K |
| 7304390004 | TUBE,PIPE,PROFIL,SMLS,IRN/STL,BOILER 38.1-190.5MM | $877K | 13.42% | $118K |
| 7304390020 | TUBE,PIPE,PROFIL,SMLS,IRN/STL,NESOI,DIAM LT 38.1MM | $701K | 42.80% | $300K |
| 7304390044 | PIPE,SMLS,IRN/STL,NESOI,DIAM 114.3-190.5WAL GT19MM | $593K | 69.49% | $412K |
| 7304390076 | TUBE,PIPE,SMLS,I/S,NESOI,DIAM GT 406.4,WAL LT 19MM | $477K | 56.04% | $311K |
| 7304390028 | TUBE,PIPE,I/S,NESOI,38.1 LT=114.3WAL6.4 LT=12.7MM | $387K | 48.60% | $188K |
| 7304390016 | TUBE,PIPE,PROF,SMLS,IRN/STL,GALVANIZED,LT=114.3MM | $381K | 51.23% | $195K |
| 7304390036 | PIPE,SMLS,IRN/STL,OTH, DIAM114.3-190.5WAL LT12.7MM | $297K | 58.66% | $174K |
| 7304390048 | PIPES,SMLS,I/S,NESOI,DIAM,190.5-285.8,WAL LT12.7MM | $284K | 55.57% | $158K |
| 7304390008 | TUBS,PIPE,PROFIL,SMLS,IRN/STL,BOIL,DIAM GT 285.8MM | $281K | 0.00% | -- |
| 7304390052 | PIPE,SMLS,I/S,NESOI,DIAM190.5-285.8,WALL12.7-19MM | $208K | 55.71% | $116K |
| 7304390062 | PIPE,SMLS,I/S,NESOI,DIAM 285.8-406.4,WAL LT 12.7MM | $132K | 26.27% | $35K |
| 7304390032 | TUBE,PIPE,SMLS,NESOI,38.1 LT=114.3WALGT 12.7MM | $107K | 71.01% | $76K |
| 7304390006 | TUBS,PIPE,PROFIL,SMLS,IRN/STL,BOILR,190.5-285.8MM | $102K | 13.24% | $14K |
| 7304390068 | PIPE,SMLS,I/S,NESOI,DIAM 285.8-406.4WALL12.7-19MM | $40K | 50.00% | $20K |
| 7304390040 | PIPE,SMLS,I/S,NESOI,DIAM 114.3-190.5 | $29K | 75.00% | $22K |
TUBS,PIPE,HOLOW PROFIL,SMLS,IRN/STL,BOIL,LT 38.1MM
PIPE,SMLS,NESOI,DIAM 190.5-285.8,WALL GT=19MM
PIPE,SMLS,IR/STL,NESOI,DIAM 285.8-406.4WAL GT 19MM
TUBE,PIPE,SMLS,I/S,NESOI,DIAM GT 406.4,WAL GT=19MM
TUBE,SMLS,IR/STL,NESOI,38.1 LT=114.3 WAL LT 6.4MM
TUBE,PIPE,PROFIL,SMLS,IRN/STL,BOILER 38.1-190.5MM
TUBE,PIPE,PROFIL,SMLS,IRN/STL,NESOI,DIAM LT 38.1MM
PIPE,SMLS,IRN/STL,NESOI,DIAM 114.3-190.5WAL GT19MM
TUBE,PIPE,SMLS,I/S,NESOI,DIAM GT 406.4,WAL LT 19MM
TUBE,PIPE,I/S,NESOI,38.1 LT=114.3WAL6.4 LT=12.7MM
TUBE,PIPE,PROF,SMLS,IRN/STL,GALVANIZED,LT=114.3MM
PIPE,SMLS,IRN/STL,OTH, DIAM114.3-190.5WAL LT12.7MM
PIPES,SMLS,I/S,NESOI,DIAM,190.5-285.8,WAL LT12.7MM
TUBS,PIPE,PROFIL,SMLS,IRN/STL,BOIL,DIAM GT 285.8MM
PIPE,SMLS,I/S,NESOI,DIAM190.5-285.8,WALL12.7-19MM
PIPE,SMLS,I/S,NESOI,DIAM 285.8-406.4,WAL LT 12.7MM
TUBE,PIPE,SMLS,NESOI,38.1 LT=114.3WALGT 12.7MM
TUBS,PIPE,PROFIL,SMLS,IRN/STL,BOILR,190.5-285.8MM
PIPE,SMLS,I/S,NESOI,DIAM 285.8-406.4WALL12.7-19MM
PIPE,SMLS,I/S,NESOI,DIAM 114.3-190.5
HS10 export codes under this HS6 parent. 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 | $4.5M |
OTH IOS NA PS TB HLW PFL SMLS CIR CS NT CLD-WRKD
874.3K kg
TABLE, KITCHEN ETC ARTICLES & PTS, STAINLESS STEEL
HS 732393
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $2.9M | $2.6M | -$231K |
| Illinois | $1.8M | $439K | -$1.4M |
| Pennsylvania | $2.1M | $12K | -$2.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $6.4M | $1.1M | -$5.3M |
| PHILADELPHIA, PA | $1.8M | -- | -$1.8M |
| ALCAN, AK | $816K | -- | -$816K |