High-Performance Steel for seawater treatment plants
Delivering alloys for RO and intake/outfall systems
Reverse Osmosis desalination plants increasingly rely on Duplex and Super Duplex stainless steels. At the same time, many existing facilities, particularly in regions such as the UAE and Saudi Arabia, were originally built using 6 Moly grades like 254 SMO and now require refurbishment or replacement.
Stainalloy is a trusted supplier of the right materials for both new builds and plant upgrades. Our stock availability and material expertise ensure continuity, reliability and long-term performance in highly corrosive seawater environments.
Alloy selection
Grades proven for seawater and SWRO duty
We align material choice with chloride load, pressure, and temperature to mitigate pitting, crevice attack, and SCC — reducing maintenance and lifecycle cost in desalination service.
Seawater-ready grades
Super Duplex 2507 and Duplex 2205 (with 6-Mo options) matched to chloride-rich service.
Global logistics
Export packing, corrosion protection, and consolidated shipments via our hubs to meet schedule and Incoterms.
Delivered to spec
Correct grade, condition, and dimensions with full heat-number traceability and EN 10204 3.1/3.2.
Documentation assured
Complete MDR including MTCs, PMI/hardness reports, and QC records aligned to project requirements.
Built for desalination performance
Consistent quality from intake to brine reject
We handle your full procurement process, exactly to your specs
From intake lines to RO high-pressure trains and outfalls, our materials and project support help plants run reliably in saline, fouling-prone environments.
Industries we serve
Trusted by high-spec industries
We have a 40-year track record in oil & gas, power generation, and desalination. Wherever performance, durability and precision matter most: that’s where we add value.
Upstream Oil & Gas
Specialized piping materials for FPSOs and production facilities. Manufactured to perform in the harshest offshore and onshore environments.
Downstream Petrochemicals
Materials for hydrogen, ethylene, ammonia and more. Supporting complex plant construction with reliable supply and deep industry knowledge.
Renewables
Materials that meet the demands of green hydrogen, biofuels, and geothermal. Supporting your energy transition with reliability and insight.
Joran de Jong
Sales Engineer
Etienne van Zuilekom
Senior Sales Engineer
Guido Donk
Senior Sales Manager
Stephan de Groot
Sales Manager
How may we help you?
Send us your enquiry or request a quote.
Let’s talk about your material needs, project specs, or delivery timelines. Our team is ready to assist.