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HSChapter 73
U.S. imports of seamless alloy steel (non-stainless) circular tubes & pipes, not cold-drawn or cold-rolled (HS 730459) totaled $14.0M in April 2026, traded with 19 countries.
Importers of Seamless Alloy Steel (Non-Stainless) Circular Tubes & Pipes, Not Cold-Drawn or Cold-Rolled paid $7.2M in duties in April 2026 — an effective duty rate of 52% on $13.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataHot-finished seamless tubes of non-stainless alloy steel are a primary input for oil-country tubular goods (OCTG), high-pressure boiler circuits, and structural applications in energy infrastructure, where large outer diameters and heavy walls preclude cold-working. Mexico leads US import supply under this heading, in part because of integrated steel and tube-rolling capacity serving North American energy markets, with China and Germany also significant sources. The US schedule is exceptionally detailed, subdividing lines by outer diameter across seven size brackets (from under 38.1 mm to over 406.4 mm) and by wall thickness, with separate provisions for heat-resistant steel and boiler-service tubes. Section 232 tariffs apply, and importers should check whether antidumping or countervailing duty orders on OCTG or alloy pipe from China or other origins cover the specific grade and dimensions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Active antidumping and countervailing duty orders on oil-country tubular goods from China and other countries may cover certain alloy steel seamless pipes that classify under 730459. The scope of OCTG orders is defined by end-use (casing, tubing, drill pipe for oil and gas wells) and physical specifications, not solely by HTS code. Importers must conduct a scope analysis — and potentially request a scope ruling from the Department of Commerce — to determine whether their specific product and origin combination is covered, even if the HTS classification appears to fall outside the order's primary code.
The granular size breakouts reflect historical trade remedy petitions and duty-rate differentiation tied to specific product dimensions that were the subject of antidumping investigations. Each bracket corresponds to a distinct commercial product range with different end uses and competitive dynamics. Importers must measure and declare OD and wall thickness accurately; even a small measurement error that shifts a product into a different bracket can change the applicable duty rate or trade remedy exposure.
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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 |
|---|---|---|---|---|
| 7304598020 | OTH TPS,SMS,ASNSS,CS,NES,OD38.1NOV114.3W6.4NOV12.7 | $7.3M | 50.85% | $3.7M |
| 7304598080 | OTH TPS,SMS,ASNSS,CS,NESOI,OD OV 406.4 MM | $1.6M | 64.67% | $1.0M |
| 7304592030 | TUBES ETC SMLS CIRC HT RESIS ST NES NCR FR BOILERS | $1.0M | 71.23% | $739K |
| 7304598040 | OTH TPS,SMS,ASNSS,CS,NESOI,ODO114.3UN190.5WT19O O | $1.0M | 48.69% | $501K |
| 7304598070 | OTH TPS,SMS,ASNSS,CS,NES,ODOV285.8NOV406.4,WT19 AO | $885K | 54.27% | $387K |
| 7304598055 | OTH TPS,SMS,ASNSS,CS,NES,OD190.5 NOV285.8 WT19O OV | $803K | 53.68% | $431K |
| 7304598025 | OTH TPS,SMS,ASNSS,CS,NESOI,OD38.1 NOV114.3WTOV12.7 | $350K | 43.95% | $145K |
| 7304598030 | OTH TPS,SMS,ASNSS,CS NES,ODOV114.3UN190.5,WTUN12.7 | $292K | 0.00% | -- |
| 7304592045 | OTH TPS,SMS,ASNSS,CS,FBLRS,ETCNHRSOD38.1NOV114.3MM | $230K | 22.83% | $52K |
| 7304591000 | TUBES ETC SMLS CIRC ALY NT STLS NT C-R FR BL BRNGS | $109K | 50.00% | $54K |
| 7304592070 | OTH TPS,SMS,ASNSS,CS,FBLRS,NHR OD OV285.8 L406.4MM | $99K | 22.27% | $21K |
| 7304598015 | OTH TPS,SMS,ASNSS,CS,NESOI OD38.1NOV114.3MMWL6.4MM | $93K | 51.18% | $48K |
| 7304598065 | OTH TPS,SMS,ASNSS,CS,NES,ODOV285.8NOV406.4W12.7U19 | $64K | 50.00% | $32K |
| 7304592060 | OTH TPS;SMS;ASNSS;CS;FBLRS,NHR OD 190.5NOV285.8MM | $50K | 42.39% | $18K |
| 7304598035 | OTH TPS,SMS,ASNSS,CS NES,ODOV114.3UN190.5WT12.7U19 | $35K | 0.00% | -- |
| 7304592055 | OYH TPS;SMLS;ASNSS;CS;FBLRS,NHR OD OV114.3NOV190.5 | $30K | 45.87% | $14K |
| 7304592080 | OTH TPS,SMS,ASNSS,CS,FBLRS,ETC,NHRS OD OV 406.4 MM | $30K | 0.00% | -- |
| 7304598010 | OTH TPS,SMS,ASNSS,CS,NTCL-T,NESOI,OD UN 38.1 MM | $18K | 50.00% | $9K |
| 7304598060 | OTH TPS,SMS,ASNSS,CS,NESOI,ODO285.8NOV406.4WTU12.7 | $0 | -- | -- |
| 7304598050 | OTH TPS,SMS,ASNSS,CS,NES,OD190.5 NOV285.8WT12.7U19 | $0 | -- | -- |
| 7304598045 | OTH TPS,SMS,ASNSS,CS,NES,OD190.5,NTOV285.8WTUN12.7 | $0 | -- | -- |
| 7304596000 | TUBES ETC SMLS CIRC HT RESIS ST NES NCR NT FR BLRS | $0 | -- | -- |
OTH TPS,SMS,ASNSS,CS,NES,OD38.1NOV114.3W6.4NOV12.7
OTH TPS,SMS,ASNSS,CS,NESOI,OD OV 406.4 MM
TUBES ETC SMLS CIRC HT RESIS ST NES NCR FR BOILERS
OTH TPS,SMS,ASNSS,CS,NESOI,ODO114.3UN190.5WT19O O
OTH TPS,SMS,ASNSS,CS,NES,ODOV285.8NOV406.4,WT19 AO
OTH TPS,SMS,ASNSS,CS,NES,OD190.5 NOV285.8 WT19O OV
OTH TPS,SMS,ASNSS,CS,NESOI,OD38.1 NOV114.3WTOV12.7
OTH TPS,SMS,ASNSS,CS NES,ODOV114.3UN190.5,WTUN12.7
OTH TPS,SMS,ASNSS,CS,FBLRS,ETCNHRSOD38.1NOV114.3MM
TUBES ETC SMLS CIRC ALY NT STLS NT C-R FR BL BRNGS
OTH TPS,SMS,ASNSS,CS,FBLRS,NHR OD OV285.8 L406.4MM
OTH TPS,SMS,ASNSS,CS,NESOI OD38.1NOV114.3MMWL6.4MM
OTH TPS,SMS,ASNSS,CS,NES,ODOV285.8NOV406.4W12.7U19
OTH TPS;SMS;ASNSS;CS;FBLRS,NHR OD 190.5NOV285.8MM
OTH TPS,SMS,ASNSS,CS NES,ODOV114.3UN190.5WT12.7U19
OYH TPS;SMLS;ASNSS;CS;FBLRS,NHR OD OV114.3NOV190.5
OTH TPS,SMS,ASNSS,CS,FBLRS,ETC,NHRS OD OV 406.4 MM
OTH TPS,SMS,ASNSS,CS,NTCL-T,NESOI,OD UN 38.1 MM
OTH TPS,SMS,ASNSS,CS,NESOI,ODO285.8NOV406.4WTU12.7
OTH TPS,SMS,ASNSS,CS,NES,OD190.5 NOV285.8WT12.7U19
OTH TPS,SMS,ASNSS,CS,NES,OD190.5,NTOV285.8WTUN12.7
TUBES ETC SMLS CIRC HT RESIS ST NES NCR NT FR BLRS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304590000 | OTH TB PS HP ALY STL NT SS SMLS CIRC CS NT CLD-WRK | $3.6M |
OTH TB PS HP ALY STL NT SS SMLS CIRC CS NT CLD-WRK
674.3K kg
TABLE, KITCHEN ETC ARTICLES & PTS, STAINLESS STEEL
HS 732393
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $10.9M | $1.5M | -$9.4M |
| Pennsylvania | $1.7M | $79K | -$1.6M |
| California | $2K | $798K | +$796K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $11.7M | $280K | -$11.4M |
| LAREDO, TX | $13K | $499K | +$486K |
| SWEETGRASS, MT | -- | $500K | +$500K |