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HSChapter 73
U.S. imports of seamless stainless steel line pipe for oil & gas pipelines (HS 730411) totaled $5.2M in April 2026, traded with 19 countries.
Importers of Seamless Stainless Steel Line Pipe for Oil & Gas Pipelines paid $2.2M in duties in April 2026 — an effective duty rate of 45% on $4.8M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataStainless steel grade selection drives both the classification and the commercial value of seamless line pipe used in corrosive or high-temperature oil and gas service — austenitic, duplex, and super-duplex grades each command different price points and are specified by API 5LC or equivalent standards. The US schedule breaks this heading into three outer-diameter bands: up to 114.3 mm (7304110020), 114.3–406.4 mm (7304110050), and above 406.4 mm (7304110080), with a legacy consolidated line at 7304110000. These products are subject to Section 232 tariffs on steel, and certain country-of-origin combinations may also trigger antidumping or countervailing duty orders applicable to steel pipe and tube — importers should conduct a scope ruling check before entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The three OD bands — ≤114.3 mm, 114.3–406.4 mm, and >406.4 mm — correspond to separate 10-digit HTS lines (7304110020, 7304110050, and 7304110080 respectively). While the base MFN duty rate may be the same across bands, antidumping or countervailing duty orders on steel pipe can be scope-limited by diameter, so the correct OD classification directly determines whether a trade-remedy order applies.
A mill test certificate (MTC) conforming to EN 10204 3.1 or equivalent, showing the chemical composition and confirming the stainless steel designation, is the standard supporting document. CBP may request this to verify that the pipe is not misclassified as carbon or alloy steel, which would fall under different HTS lines and potentially different trade-remedy orders.
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| TURKEY | $2.8M | -- | -$2.8M |
| KOREA, SOUTH | $783K | $632K | -$150K |
| MALAYSIA | -- | $810K | +$810K |
| CANADA | $116K | $371K | +$255K |
| MEXICO | -- | $443K | +$443K |
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 |
|---|---|---|---|---|
| 7304110020 | LNEPPE FOR OIL/GAS,STN STL,SEMLES,DIAM LT/=114.3MM | $4.8M | 44.65% | $1.9M |
| 7304110050 | LNPPE FR OIL/GAS,STN STL,SEMLES,DIAM 114.3-406.4MM | $414K | 45.85% | $228K |
| 7304110080 | LNEPPE FR OIL/GAS,STN STL,SEMLES,DIAM GT 406.4MM | $13K | 57.82% | $7K |
LNEPPE FOR OIL/GAS,STN STL,SEMLES,DIAM LT/=114.3MM
LNPPE FR OIL/GAS,STN STL,SEMLES,DIAM 114.3-406.4MM
LNEPPE FR OIL/GAS,STN STL,SEMLES,DIAM GT 406.4MM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7304110000 | LINEPIPE FOR OIL/GAS, SEAMLESS, OF STAINLESS STEEL | $3.0M |
LINEPIPE FOR OIL/GAS, SEAMLESS, OF STAINLESS STEEL
50.2K 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
| State | Imports | Exports | Balance |
|---|---|---|---|
| Texas | $3.4M | $254K | -$3.2M |
| California | $145K | $1.9M | +$1.8M |
| Missouri | $608K | $200K | -$407K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $3.3M | $25K | -$3.3M |
| OAKLAND, CA | $218K | $1.0M | +$787K |
| LONG BEACH, CA | $570K | -- | -$570K |