Offshore steel constructions, fabricated to customer specifications
We manufacture welded offshore steel structures for wind energy, oil and gas, marine and civil engineering sectors, including sea-fastening frames, storage racks, grillages, platform components, vessel equipment and project-specific marine support structures.
Offshore and marine steel constructions by customer specification
The offshore and marine construction scope covers welded steel structures, tubular constructions and plate constructions for marine, offshore, port logistics and similar project environments. Typical work includes sea-fastening frames, storage racks, grillages, platform components, vessel equipment and marine support steelwork made to customer drawings.
Weldsteelcon can produce offshore and marine steel assemblies as part of a customer-defined fabrication scope. Inspection points, surface treatment and quality documentation are agreed where required by the customer specification.
Typical offshore work packages
Offshore steel assemblies
Tubular and plate steel structures manufactured according to customer drawings and project requirements.
Storage racks and grillages
Welded storage racks, transport frames and grillage structures for offshore logistics.
Platform and vessel equipment
Welded components for platforms, vessels, walkways and project-specific equipment supports.
Sea-fastening structures
Cradles, stools and welded supports for marine cargo transport.
Transport and support frames
Transport supports, lifting-related details and support frames manufactured according to project drawings.
Internal walkways & platforms
Stairs, gratings and handrails manufactured according to customer drawings and project specification.
Materials for offshore service
Materials are selected according to the client specification for marine steel structures, platform components, support frames and transport structures. The material grade, coating system and documentation package are defined by the project requirements.
- Project-specified structural steel grades
- Project-specified structural steel grades
- Plate, pipe, hollow sections and profiles
- Hollow sections and profiles by specification
- Paint or coating system by project specification
Additional production views
Additional service views showing typical welded steel products and fabrication details.
Manufacturing process
Steel preparation
Cutting, shaping and fit-up are carried out according to customer drawings and project specification.
Welding and assembly
Welding and assembly follow the agreed drawings, quality requirements and documentation scope.
Inspection and finishing
Inspection, surface preparation, painting or galvanising are included when required by the specification.
Where these structures are used
- Offshore wind farms
- Oil and gas platforms
- Marine support structures
- Marine logistics and shipyards
- Port and civil engineering structures
- Civil engineering support structures
Quality references for offshore work
Offshore projects follow the customer specification together with EN 1090-1,2 · EN ISO 3834 · EN ISO 4063 · CE 1090-1,2 · EVS-EN ISO 3834-2 · EXC 2 · EXC 3 welding quality references used by the production team.
- EN 1090-1,2
- EN ISO 3834
- EN ISO 4063
- CE 1090-1,2
- EVS-EN ISO 3834-2
- EXC 2
- EXC 3
- Welding and inspection documentation by specification
- Inspection scope defined by project specification
Frequently asked questions
Common questions clients ask before signing a contract for offshore constructions.
Can you handle tubular node welding?
How is inspection scope defined?
Do you provide load-out and sea-fastening?
Other things we build for industry
Welded steel structures
Welded steel structures and bolted connections for industry, construction and infrastructure, manufactured from customer drawings and technical specifications.
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Building steel structures
Primary frames, beams, columns, trusses and connections for industrial and commercial buildings, manufactured and finished to specification.
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Steel storage tanks & containers
Horizontal welded steel storage tanks and storage containers for oil, chemicals, gas and water.
Read more→Have drawings?
Send us your specification
Send us your drawings, materials and technical requirements. We review the scope and contact you with the next step.