On this page 10 sections
Which materials are used in marine & offshore?
Quick answer
Cupro-Nickel 90/10 for seawater cooling and firewater piping; Super Duplex 2507 Stainless Steel for high-pressure seawater and process piping; SS 254 SMO Stainless Steel for seawater heat exchangers and systems; Titanium Grade 2 for condensers and seawater heat exchangers; Monel 400 for pump shafts and valves.
What are the material challenges in marine & offshore?
Pitting and crevice corrosion in seawater
Biofouling in cooling systems
Erosion-corrosion at high flow velocities
Galvanic corrosion between dissimilar metals
Materials we supply for this industry
| Material | Typical use | Grade family |
|---|---|---|
| Cupro-Nickel 90/10 | Seawater cooling and firewater piping | Non-Ferrous Metals |
| Super Duplex 2507 Stainless Steel | High-pressure seawater and process piping | Stainless Steel |
| SS 254 SMO Stainless Steel | Seawater heat exchangers and systems | Stainless Steel |
| Titanium Grade 2 | Condensers and seawater heat exchangers | Non-Ferrous Metals |
| Monel 400 | Pump shafts and valves | Nickel Alloys |
| SS 316L Stainless Steel | Deck fittings and above-waterline hardware | Stainless Steel |
Popular products for marine & offshore
Which standards apply?
Related applications
Marine & Offshore markets we supply
Procurement considerations
- Specify grade, specification and edition
- Define tests and certificates (EN 10204 3.1 / 3.2)
- Include third-party inspection and PMI where required
- Confirm marking, packing and destination documentation
We support marine & offshore buyers with documentation and inspection and value-added services.
Explore more
Frequently asked questions
Is SS 316 stainless suitable for seawater immersion?
Generally not for long-term immersion, especially in warm or stagnant water, where crevice corrosion is likely. Super duplex, 6Mo, titanium or cupro-nickel are normally used.
Which product forms do you supply for marine & offshore?
Pipes, Tubes, Fittings, Flanges, Bars, Bolts, in the grades listed above, from stock or mill-sourced with EN 10204 certificates.
Which standards apply to marine & offshore materials?
Do you supply marine & offshore projects outside India?
Yes, including United Arab Emirates, Bahrain, Singapore.