Longitudinally submerged arc welded (HS 730511)
Longitudinally submerged arc welded (HS 730511) has 5,419 U.S. import bill-of-lading shipment records between Jan 2020 and Aug 2026. The largest U.S. importer of Longitudinally submerged arc welded is TENARIS GLOBAL SERVICES USA CORP, with 1,852 shipments, followed by HYUNDAI STEEL USA INC and PLASTIC TRIM INTERNATIONAL INC. The leading supplier is TUBOS DE ACERO DE MEXICO SA DE CV, with 1,850 shipments, followed by HYUNDAI STEEL PIPE CO LTD and HYUNDAI STEEL COMPANY. Goods originate mainly from MEXICO and CHINA, arriving primarily at HOUSTON, TX. Import volume has held steady over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through August 2026Cite as: ImportDoor, U.S. Customs bill of lading data (data through August 2026), https://www.importdoor.com/products/730511-longitudinally-submerged-arc-welded
See all 5,419 shipments of HS 730511 with dates, ports, consignees, filters and CSV export in the ImportDoor dashboard.
Open in dashboardShipments by month (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Longitudinally submerged arc welded (HS 730511), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is TUBOS DE ACERO DE MEXICO SA DE CV → TENARIS GLOBAL SERVICES USA CORP with 1,850 shipments, followed by HYUNDAI STEEL PIPE CO LTD → HYUNDAI STEEL USA INC (504) and HYUNDAI STEEL COMPANY → HYUNDAI STEEL USA INC (268).
Top U.S. importers
| Importer | Shipments |
|---|---|
| TENARIS GLOBAL SERVICES USA CORP | 1,852 |
| HYUNDAI STEEL USA INC | 799 |
| PLASTIC TRIM INTERNATIONAL INC | 268 |
| VALLOUREC USA CORP | 187 |
| 1 PUSAN PIPE AMERICA INC | 91 |
| PIPE AND PILING SUPPLIES LTD | 89 |
| VALLOUREC | 83 |
| AKW SUPPLY CO | 80 |
| HUSTEEL USA INC | 60 |
| OHTA PRESS U S INC | 56 |
Top suppliers
| Supplier | Shipments |
|---|---|
| TUBOS DE ACERO DE MEXICO SA DE CV | 1,850 |
| HYUNDAI STEEL PIPE CO LTD | 564 |
| HYUNDAI STEEL COMPANY | 275 |
| JIAXING MINHUI AUTOMOTIVE PARTS COM | 251 |
| SEAH STEEL VINA CORP | 92 |
| VALLOUREC TUBOS DO BRASIL S A | 81 |
| MS PIPE CO LTD | 80 |
| VALLOUREC SOLUCOES TUBULARES DO BRASIL S A | 78 |
| VALLOUREC SOLUCOES TUBULARES | 75 |
| HUSTEEL CO LTD | 59 |
Origin countries
| Country | Shipments |
|---|---|
| MEXICO | 1,931 |
| CHINA | 883 |
| KOREA, DEMOCRATIC PEOPLES REPUBLIC OF | 853 |
| REPUBLIC OF KOREA | 353 |
| BRAZIL | 287 |
| INDIA | 187 |
| JAPAN | 175 |
| VIET NAM | 123 |
| MALAYSIA | 62 |
| TAIWAN | 58 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| HOUSTON, TX | 3,426 |
| LOS ANGELES, CA | 375 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 225 |
| SAVANNAH, GA | 213 |
| CHARLESTON, SC | 193 |
| LONG BEACH, CA | 188 |
| SEATTLE, WA | 108 |
| EVERETT, WA | 98 |
| TAMPA, FL | 81 |
| VANCOUVER, WA | 53 |
Harmonized System classification
HS code 730511 — Longitudinally submerged arc welded. The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.
More products under HS 7305
Other six-digit codes in HS 7305: Other tubes and pipes (for example, welded, riveted or similarly closed), having circular cross sections, the external diameter of which exceeds 406.4 mm, of iron or steel, with their U.S. import volume.
Frequently asked questions about importing Longitudinally submerged arc welded
Who imports Longitudinally submerged arc welded (HS 730511)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Longitudinally submerged arc welded include TENARIS GLOBAL SERVICES USA CORP, HYUNDAI STEEL USA INC, PLASTIC TRIM INTERNATIONAL INC, VALLOUREC USA CORP, and 1 PUSAN PIPE AMERICA INC.
Who is the largest U.S. importer of Longitudinally submerged arc welded?
TENARIS GLOBAL SERVICES USA CORP is the largest U.S. importer of Longitudinally submerged arc welded (HS 730511), with 1,852 bill-of-lading shipment records.
Who are the top suppliers of Longitudinally submerged arc welded?
Leading suppliers shipping Longitudinally submerged arc welded (HS 730511) to the U.S. include TUBOS DE ACERO DE MEXICO SA DE CV, HYUNDAI STEEL PIPE CO LTD, HYUNDAI STEEL COMPANY, JIAXING MINHUI AUTOMOTIVE PARTS COM, and SEAH STEEL VINA CORP.
How many U.S. shipments of Longitudinally submerged arc welded are there?
ImportDoor has 5,419 U.S. import shipment records under HS code 730511, spanning Jan 2020 to Aug 2026.
Where is Longitudinally submerged arc welded imported from?
Longitudinally submerged arc welded is imported into the U.S. primarily from MEXICO, CHINA, and KOREA, DEMOCRATIC PEOPLES REPUBLIC OF.
Find Longitudinally submerged arc welded importers & suppliers
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