Longitudinally submerged arc welded (HS 730511)
Longitudinally submerged arc welded (HS 730511) has 4,911 U.S. import bill-of-lading shipment records between Jan 2020 and Jul 2026. The largest U.S. importer of Longitudinally submerged arc welded is TENARIS GLOBAL SERVICES USA CORP, with 1,666 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 1,664 shipments, followed by HYUNDAI STEEL PIPE CO LTD and HYUNDAI STEEL COMPANY. Goods originate mainly from MEXICO and KOREA, DEMOCRATIC PEOPLES REPUBLIC OF, arriving primarily at HOUSTON, TX. Import volume has risen over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through July 2026
Shipments over time (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 1,664 shipments, followed by HYUNDAI STEEL PIPE CO LTD → HYUNDAI STEEL USA INC (482) and HYUNDAI STEEL COMPANY → HYUNDAI STEEL USA INC (242).
Top U.S. importers
| Importer | Shipments |
|---|---|
| TENARIS GLOBAL SERVICES USA CORP | 1,666 |
| HYUNDAI STEEL USA INC | 748 |
| PLASTIC TRIM INTERNATIONAL INC | 230 |
| VALLOUREC USA CORP | 136 |
| 1 PUSAN PIPE AMERICA INC | 89 |
Top suppliers
| Supplier | Shipments |
|---|---|
| TUBOS DE ACERO DE MEXICO SA DE CV | 1,664 |
| HYUNDAI STEEL PIPE CO LTD | 536 |
| HYUNDAI STEEL COMPANY | 249 |
| JIAXING MINHUI AUTOMOTIVE PARTS COM | 213 |
| SEAH STEEL VINA CORP | 89 |
Origin countries
| Country | Shipments |
|---|---|
| MEXICO | 1,734 |
| KOREA, DEMOCRATIC PEOPLES REPUBLIC OF | 809 |
| CHINA | 794 |
| REPUBLIC OF KOREA | 310 |
| BRAZIL | 236 |
| INDIA | 177 |
| JAPAN | 156 |
| VIET NAM | 117 |
| TAIWAN | 57 |
| MALAYSIA | 55 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| HOUSTON, TX | 3,104 |
| LOS ANGELES, CA | 345 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 202 |
| SAVANNAH, GA | 180 |
| LONG BEACH, CA | 180 |
| CHARLESTON, SC | 174 |
| SEATTLE, WA | 94 |
| EVERETT, WA | 86 |
| TAMPA, FL | 81 |
| TACOMA, WA | 46 |
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.
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 1,666 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 4,911 U.S. import shipment records under HS code 730511, spanning Jan 2020 to Jul 2026.
Where is Longitudinally submerged arc welded imported from?
Longitudinally submerged arc welded is imported into the U.S. primarily from MEXICO, KOREA, DEMOCRATIC PEOPLES REPUBLIC OF, and CHINA.
Find Longitudinally submerged arc welded importers & suppliers
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