Steel pipes at sea
Share to：
Marine steel pipes boast superior corrosion resistance, high-pressure resistance, and impact resistance. Specifically designed for harsh marine environments such as offshore oil and gas development, offshore wind power, and cross-sea bridges, they provide safe and reliable basic materials for deep-sea and nearshore projects, helping clients overcome multiple challenges including wave surges, salt spray, and microbial corrosion.
Product name：
Titanium and titanium alloys
Material：
TA15
Warehouse：
Tianjin
Surface treatment：
Keyword：
Steel pipes at sea
Whatsapp：
Details description
Core Product Advantages
Deep-Sea Corrosion Resistance
Using duplex stainless steel (2205/2507), nickel-based alloys (625/825), and carbon steel + 3PE/FBE anti-corrosion coating, it can withstand seawater, Cl⁻, H₂S, sulfate-reducing bacteria (SRB) corrosion. Salt spray test ≥2000 hours without rust, lifespan up to 30 years or more.
Ultra-High Strength and Pressure Resistance
Tensile strength 550-1200MPa, yield strength ≥415MPa. Optimized by cold rolling/hot rolling process, it can withstand deep-sea high pressure (≥30MPa) and dynamic wave loads, and fatigue resistance is improved by 50%.
Extreme Environment Resistance Design
Operating temperature -50℃ to 120℃, suitable for polar low temperatures, tropical high temperatures, and tidal dry-wet alternating environments; the outer wall wear-resistant coating resists ocean current scouring and ship anchor chain impact.
Lightweight and Modular Design
Thin-walled high-strength steel pipes (wall thickness 6-40mm) combined with flange pre-welding design, reducing installation complexity and transportation costs, suitable for modular engineering needs such as floating platforms and seabed manifolds.
Application Areas
Offshore oil and gas development: Subsea oil and gas pipelines, underwater christmas tree casing, platform pile foundation support pipes.
Offshore wind power: Wind turbine monopile foundations, jacket transition sections, submarine cable protective casings.
Cross-sea projects: Cross-sea bridge foundations, immersed tube tunnel structural pipes, port and wharf steel pipe piles.
Ocean renewable energy: Tidal energy generation device supports, seawater desalination water pipes, ocean thermal energy conversion pipelines.
National defense and scientific research: Deep-sea explorer shells, ship repair structural parts, ocean observation platform support pipes.
Technology and Quality Assurance
International Standard Certifications:
Complies with API 5L/5CT, DNV-OS-F101, ISO 3184 and other marine engineering standards, and has passed certification from DNV (Det Norske Veritas) and ABS (American Bureau of Shipping).
Strict Manufacturing Processes:
Seamless pipes use hot extrusion + cold rolling technology, welded pipes use JCOE forming + multi-wire submerged arc welding (SAWL), combined with fully automatic UT/RT flaw detection to ensure zero-defect delivery.
Corrosion Protection Enhancement Technology:
Cathodic protection compatible design, optional aluminum sacrificial anode or ICCP system; inner wall coated with epoxy resin (300μm) to prevent marine organism attachment.
Full Process Service:
Provides guidance on marine condition material selection, FEA stress simulation analysis, and on-site welding technical support to reduce engineering risks.
Quan Ge Pipe Industry - Ruling the sea with steel, exploring the blue territory!
Previous page
Next page
Previous page
Next page
Qualification certification
Corporate video
Seamless steel pipe manufacturing
3PE anti-corrosion pipe manufacturing
Spiral steel pipe manufacturing
Application fields
Petrochemicals
Petrochemicals
Aerospace
Aerospace
Energy equipment
Energy equipment
Oil/gas/water pipelines
Oil/gas/water pipelines
Building construction
Building construction
Dredging & piling works
Dredging & piling works
Related products
FAQ
How to perform daily maintenance and inspection of steel structures during use?
What preparatory work needs to be done before installing a steel structure?
What are the main differences between light steel structures and heavy steel structures?
How are the column spacing and span of steel structure factory buildings usually determined?
What changes occur in steel structures under high-temperature environments, and how can these be addressed?
What are the common structural forms of large-span steel structures?
Online consultation
We will contact you within one working day. Please check your email.
Copyright © 2025 Quan Ge Pipe Industry
Feedback