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05 · Platform 05 / 07
Large-Diameter Welded Pipe · LNG · Offshore · Petrochemical · Naval

Doowon Highsteel

High-spec welded pipe to 140″ OD.
Origin — Republic of Korea · Exclusively represented and deployed by W2 Innovations
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Overview

High-spec welded pipe to 140″ OD.

High-specification large-diameter welded pipe for LNG carriers and FLNG vessels, offshore platforms, naval vessels, seawater cooling and petrochemical plant. Stainless and Duplex/Super-Duplex to 120″ OD, carbon steel to 140″ OD and copper-nickel to 40″ OD.

Class-certified by ABS, BV, DNV-GL, Lloyd’s Register, KR and RS. Approved vendor to QatarEnergy, KOC, KNPC, Samsung Heavy Industries and Hanwha Ocean — pipe engineered for the cryogenic, corrosive and high-pressure realities of Gulf energy infrastructure.

140″Maximum OD
6Class societies
4QatarEnergy-tier clients
Imagery & film
Doowon Highsteel — Capability film16:9 · MP4 · muted autoplay loopassets/doowon-highsteel/film.mp4
Hero imageProduct / in-situassets/doowon-highsteel/01.jpg
DeploymentReference installationassets/doowon-highsteel/02.jpg
DetailClose / spec detailassets/doowon-highsteel/03.jpg
Key specifications
Stainless / Duplex
To 120″ OD — TP304/316/321/347, S31803, S32750 · ASTM A312/A358/A790
Carbon steel
To 140″ OD — API 5L B-X80, A106, A333, A671/672 · JIS, KS
Copper-nickel
To 40″ OD — C70600 90/10, C71500 70/30
Class & ISO
ABS · BV · DNV-GL · LR · KR · RS · ISO 9001/14001/45001
QA / NDT
GTAW · PAW · SAW · ERW · radiographic, ultrasonic, hydrostatic
Product range
Stainless / DuplexCryogenic & corrosive service
Carbon steelStructural & pressure
Copper-nickelSeawater cooling
QA / NDTRadiographic · ultrasonic · hydrostatic
Applications & sectors
·LNG carriers & FLNG vessels
·Offshore & fixed platforms
·Naval & defence vessels
·Seawater cooling systems
·Petrochemical plant
·Desalination infrastructure
Certifications & standards
ABSBureau VeritasDNV-GLLloyd’s · KR · RSAPI 5LISO 9001/14001/45001

One accountable partner — from first specification to every operating day thereafter.

Every Doowon Highsteel deployment is installed, maintained and supported by W2 Innovations’ own factory-trained engineers, based in-region across the GCC. We carry the deployment from site survey and commissioning to preventive maintenance and rapid in-region fault resolution — with direct escalation to the manufacturer.

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