Hydrogen (H₂) service
Material Compatibility
Inconel 625 / 718 for Hydrogen (H₂)
Is Inconel 625 / 718 the right valve material for Hydrogen (H₂)? The engineering rating, the conditions that limit it, and the better alternatives.
Excellent
Is Inconel 625 / 718 compatible with Hydrogen (H₂)?
For Hydrogen (H₂) (H₂) valve service, Inconel 625 / 718 is excellent — an excellent choice. Excellent HE resistance for high-pressure HP service.
Better materials for Hydrogen (H₂)
Higher-rated options for this service, from the compatibility data.
All rated materials for Hydrogen (H₂)
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
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Need Inconel 625 / 718 valves for Hydrogen (H₂)?
Send your concentration, temperature and pressure — we confirm Inconel 625 / 718 suitability for Hydrogen (H₂) (or recommend an upgrade) and supply with full certification.
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