Seawater service
Material Compatibility
Duplex 2205 for Seawater
Is Duplex 2205 the right valve material for Seawater? The engineering rating, the conditions that limit it, and the better alternatives.
Good
Is Duplex 2205 compatible with Seawater?
For Seawater valve service, Duplex 2205 is good — a good choice. PREN ~35 - acceptable for most seawater applications at ambient temperature.
Better materials for Seawater
Higher-rated options for this service, from the compatibility data.
All rated materials for Seawater
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
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