Offshore Construction
Offshore structures require materials that can withstand fierce storms and climate extremes. Cost-effectiveness, easy maintenance and safety are further requirements to compete in this challenging environment. Therefore: Vallourec offers material with durability and strength which is qualified according to international offshore standards and codes.
Designed to resist, our tubular solutions are used for new offshore constructions as well as for repair demands.
Fixed platforms, vessels & ships
- Superstructures
- Frame structures
- Crew housing
- Helicopter decks
- Flare booms
- Stressed boom joints
- Drilling and Support Modules
- Utilities / Process systems
Fixed and floating Wind Turbines & Substations
- Boatlandings
- Service decks
- J-Tubes
Subsea Equipment
- Processing and boosting systems
- Manifolds
- Trees
- Active pipeline supports
- ROV operated bending tools
The challenge of an offshore environment
Thanks to our extensive experience and R&D capabilities in offshore environments we offer a wide range from carbon to innovate premium grades.
Our seamless tubes and hot formed hollow sections in round, square and rectangular are ultra-resistant and meet yield strength up to 890 MPa and toughness down to -60°C. With these specific properties our grades contribute to a major success factor: the efficient weldability.
The wide range of our dimensional product portfolio ensures the highest freedom for offshore designers on the market. Along with tight wall thickness tolerances it ensures weight limitations and excellent fabrication. If needed, also special shapes can be delivered.
Our special grade family for offshore construction is called Oceanfit®. It provides excellent weldability and exceeds the requirements of API 5 L/ISO 3183 and EN 10225. Tailor-made to your specifications, it is available in different grades and norms:
Oceanfit® 355
Grade B/C, Grade 6, X42, X42N, X46, X46N, X52, X52N, X52Q, L360N, L360Q, S355NHHO, S355NLHHO, S355QLHHO, VL A36, D36, E36, AH 36, DH 36, EH 36, Y22, Y27
Oceanfit® 420
X60N, X60Q, L415N, L415Q, S420QLHHO, VL A420, D420, E420, VL AO420, DO420, EO420, AQ 43, DQ 43, EQ43, Y32, Y37
Oceanfit® 460
X65N, X65Q, L450N, L450Q, S460QLHHO, VL A460, D460, E460, VL AO460, DO460, EO460, AQ47, DQ 47, EQ47, Y42, Y47
Oceanfit® 500 / 550
X75Q / X80Q, L520Q / L555Q, S500QLHHO / S550QLHHO, VL A500, D500, E500, VL AO500, DO500, EO500, VL A550, D550, E550, VL AO550, DO550, EO550, AQ 51, DQ51, EQ51, AQ 56, DQ56, EQ56, Y52, Y57
Oceanfit® 620 / 690
X90Q / X100Q, L620Q / L690Q, S620QLHHO / S690QLHHO, VL A620, D620, E620, VL AO620, DO620, EO620, VL A690, D690, E690, VL AO690, DO690, EO690, AQ 63, DQ 63, EQ63, AQ 70, DQ 70, EQ70
Oceanfit® 770
S770QLHHO
Oceanfit® 890
VL A890, D890, E890, AQ 91, DQ 91, EQ 91
Article published in Energy Tech Review Magazine - By Daniel Strötgen, R&D M&D Manager for offshore structural business of Vallourec - 2022
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