Portfolio · Specialised pipe systems — Korea
DOOWON HIGHSTEEL
Manufactured by Doowon Highsteel Co., Ltd. · South Korea
Doowon Highsteel is a Korean manufacturer of high-grade specialised pipe — stainless steel, duplex, super duplex, and copper-nickel — supplying the world's most consequential energy and infrastructure projects, from LNG and offshore oil & gas to large-scale water infrastructure.
Our engagement with Doowon is an Algeria market-entry programme. We act as their advisory and representation partner for the Algerian market, working alongside Hyundai Engineering & Construction on validated reference deployments and supporting the build-out of the local distribution and after-sales footprint.
Product line
The platform, in components.
Stainless steel pipe
Grades 304/304L, 316/316L, 321/347 — onshore and offshore.
Duplex & super-duplex pipe
S31803 duplex and S31254 super-duplex — corrosive and high-pressure service.
Copper-nickel pipe
70/30 Cu-Ni — seawater, offshore, marine applications.
Validated certifications
Standards verified at source.
ASTM A358 / A312 / A182
Stainless steel piping standards
ASTM B467
Copper-nickel piping
EEMUA 234
Subsea & duplex applications
KS D3588
Korean industrial standards
Sector relevance