EN
Steel structure offshore platform
- Product Model: ASTM A36/ASTM A572GR50/EN S355JR/S355J2 Steel Structure
- Unit of Measurement: Ton
- Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc.
- Overview
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Description
A Steel Structure Offshore Platform is a large-scale marine engineering structure widely used in offshore oil & gas production, offshore wind power, marine equipment installation, coastal engineering, port expansion, subsea pipeline support, and offshore operation bases.
The platform is fabricated from high-strength structural steel such as Q355, Q460, S355, ASTM A36/A572, designed to withstand extreme marine environments including strong waves, high winds, salt corrosion, seismic forces, and heavy operational loads.
All components are fully prefabricated in factory, ensuring precise welding quality, fast offshore installation, and long-term operational safety.
Product Attributes
| After-sales Service | On site installation or installation guidance |
| Warranty Period | 1 year |
| Transportation Packaging | Container or bulk carrier transportation |
| Specification | Based on actual project products |
| Brand | Guoshun |
| Place of Origin | Jinan |
| Standard | European, American, and National Standards |
| Surface Treatment | Spray painting or galvanizing |
Trade Information
● Unit of Measurement: Ton
● Price Range: 1300—3000 USD/T.The specific price needs to be provided with drawings and calculated based on material requirements, processing requirements, paint requirements, etc.
● Minimum Order Quantity (MOQ): 100 Tons
Key Advantages
Designed for extreme offshore loads
Supports heavy machinery, drilling systems, production modules, and personnel
Resistant to typhoons, storm surges, vibrations, and impact loads
Designed according to EN, ASTM, API, and offshore engineering standards
② Superior Anti-Corrosion & Long Service Life
Marine-grade hot-dip galvanizing
Multi-layer epoxy, polyurethane, and zinc-rich anti-corrosion coatings
Cathodic protection system available
Service life 30–50+ years in harsh marine environments
③ Modular Prefabrication & Fast Installation
Block-module prefabricated system
Short offshore construction period
Reduced marine installation risk
Ideal for both fixed and relocatable offshore platforms
④ Multi-Functional Working Platform
Supports:
Drilling and production operations
Equipment installation and maintenance
Personnel accommodation and access
Helideck & crane systems
Pipeline, cable, and subsea equipment support
⑤ Custom Design for Different Sea Conditions
Shallow water / deep water engineering solutions
Fixed platform / jacket platform / modular platform
Suitable for coastal waters, open seas, islands, and offshore wind farms
Structural System & Manufacturing Process
Main Structural Forms
Jacket type offshore platform
Fixed pile-supported platform
Modular steel frame platform
Steel tubular truss platform
Manufacturing Process
TEKLA 3D modeling & structural simulation
CNC cutting, robotic welding, automatic submerged arc welding (SAW)
Non-destructive testing (UT, RT, MT, PT)
Factory trial assembly before offshore delivery
Deck & Equipment System
Anti-slip steel deck
Galvanized grating walkways
Heavy equipment base frames
Crane rails, lifting lugs, helideck structure
Technical Specifications
| Item | Specification |
| Material | Q355/Q460, S275/S355, ASTM A36/A572 |
| Platform Type | Fixed, Jacket, Modular, Relocatable |
| Deck Load | 5–50 kN/m² |
| Design Wind Speed | ≥ 60 m/s |
| Wave Height Resistance | ≥ 10–20 m |
| Anti-Corrosion | HDG + Marine Coating |
| Lifespan | 30–50+ years |
| Welding Standard | ISO 3834 / AWS D1.1 |
| Certification | EN1090 CE, ASME, API (optional) |
Application Fields
Offshore oil & gas drilling platforms
Offshore wind power service platforms
Subsea pipeline support platforms
Marine scientific observation platforms
Offshore operation and maintenance bases
Port offshore auxiliary platforms
Why Choose Us
20+ years of experience in heavy steel structure engineering
CE EN1090 & ISO 3834 certified manufacturing
Offshore-grade welding and NDT quality control
Full design–fabrication–delivery–installation solution
Exported to over 20 countries worldwide
Strong cost control with international project experience
Our Factory
Raw material storageMaterial cuttingAutomatic Welding
Manual weldingWeld seam treatmentDeep processing
PaintingDeliveryPackaging
