Hyundai Steel Pipe: ERW, LSAW and spiral-welded production in Ulsan
Public official-source review (2026-10-11); works-specific approvals require re-verification
Last verified:
Hyundai Steel Pipe is the dedicated Korean welded-pipe manufacturing identity linked to Hyundai Steel.
| At a glance | Detail |
|---|---|
| Country | South Korea |
| Producer | Hyundai Steel Pipe |
| Main focus | ERW, longitudinal SAW, spiral welded pipe, structural and line pipe, OCTG |
| Production identity | Ulsan Plant 1 ERW; Plant 2 LSAW; Plant 3 spiral |
| Last verified | 2026-10-11 |
Identity and company background
Hyundai Steel Pipe separately markets its own production and certifications. Its official operating map identifies Ulsan Plant 1 as ERW, Plant 2 as LSAW and Plant 3 as spiral. The company reports 660 kt annual pipe capacity on its website; this is stated production capability, not annual actual output. In older catalogues, buyers may encounter Hyundai Steel as the steel-pipe manufacturer, while post-reorganization documentation uses the distinct Hyundai Steel Pipe identity.
Products and manufacturing footprint
Primary portfolio: ERW, longitudinal SAW, spiral welded pipe, structural and line pipe, OCTG.
Manufacturer/site check: Ulsan Plant 1 ERW; Plant 2 LSAW; Plant 3 spiral. A group marketing brochure may aggregate multiple sites, processes or affiliates; it is not a substitute for a works-specific production list.
Certifications and project approvals
Do not infer a current works-specific API, ISO, EN/CE, class-society or end-customer AVL approval from an historic brochure or another subsidiary's certificate. Request valid documents that identify the legal entity, physical works, specific product, grades, diameter/thickness range and expiration date. Where no such current scope was independently corroborated, this article makes no approval claim.
Procurement takeaway
For structural and offshore projects, specify the exact Ulsan works and welding method. Do not treat LSAW, spiral and HFW as equivalent without project approval. Confirm API/EN qualification and the actual manufacturer shown on the current MTC, not just the steel-feedstock supplier.
What to reverify before an RFQ or PO
- Exact legal manufacturer, works location and MTC issuer.
- Current parent/subsidiary relationship, particularly after restructuring.
- Product grade, dimensional standard, process route and size availability.
- Manufacturing-site certification, license number, approved thickness/size and validity dates.
- End-customer and EPC approved-vendor status for the specific project.
- Seller/trader versus producer; traceable heat and coil/plate origin.
References and verification sources
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Hyundai Steel Pipe: ERW, LSAW and spiral-welded production in Ulsan
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