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Nickel Alloy for Offshore Wind

Duplex 2205 monopiles, Inconel 625 cable sheathing, super austenitic offshore substation materials. DNV-GL certified. Serving North Sea, Taiwan Strait, South China Sea projects.

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Offshore Wind Applications

Monopile Foundation

  • Duplex 2205 transition piece
  • Super duplex 2507 TP < 500m
  • Secondary steelwork platforms
  • Corrosion protection systems
  • Wave load resistance design

Subsea Cable

  • Inconel 625 cable sheathing
  • Cable protection system (CPS)
  • J-tube and bell mouth
  • Cable joint casing
  • Dynamic cable armor

Offshore Substation (OSS)

  • 254 SMO transformer tank
  • Inconel 625 HV components
  • Duplex 2205 structural steel
  • Firewater system piping
  • HVAC ducting

Wind Turbine Generator

  • Inconel 718 blade bolts
  • Inconel 625 nacelle frame
  • Hastelloy C276 cooling system
  • Monel 400 electrical connectors
  • Nickel 200 battery components

Installation Vessel

  • Duplex 2205 crane components
  • Inconel 625 jack-up legs
  • Super austenitic seawater systems
  • Mooring chain accessories
  • ROV frame materials

Operations & Maintenance

  • Replacement TP components
  • Retrofit corrosion protection
  • Cable repair clamps
  • Safety barriers and gratings
  • Helicopter deck fittings

Materials Specification

Duplex 2205 (S31803/S32205)

Yield Strength450 MPa min
Pitting ResistancePREN > 35
Service Temp-50 to 300 C
Thickness Range6-100mm plate
ASTM StandardA240, A276, A182

Super Duplex 2507 (S32750)

Yield Strength550 MPa min
Pitting ResistancePREN > 40
Seawater ServiceUp to 500m depth
Impact Toughness-50C charpy > 50J
NORSOK M-650Approved

Inconel 625 (N06625)

Tensile Strength827 MPa min
Creep ResistanceUp to 650C
Seawater CorrosionExcellent
Wire Diameter0.5-10mm
StandardsAMS 5666, ASTM B443

254 SMO (S31254)

Molybdenum6.0-6.5%
Pitting ResistancePREN > 43
Stress CorrosionExcellent resistance
Thickness3-60mm plate
ApplicationsFPSO, FLNG, OSS

Project Experience

North Sea

Dogger Bank, Hornsea 2
Duplex 2205 transition pieces
Material: 800+ tons

Taiwan Strait

Formosa 1 & 2, Greater Changhua
CPS, cable clamps
Inconel 625: 50+ tons

South China Sea

Guangdong Yangjiang
OSS secondary steelwork
Duplex: 200+ tons

Baltic Sea

Arkona, Baltic Eagle
Foundation repair kits
254 SMO: 30+ tons

Certifications

DNV-GL

OS-C401, RP-B401

NORSOK M-601

Qualification approved

EN 10204 3.2

Third party witness

ISO 9001:2015

Quality management

Contact for Offshore Wind Inquiries

Email: linyuquan@findsteel.cn

WhatsApp: +61 412 712 499

Technical Support: Mill test reports, welding procedures, corrosion studies

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