Hydrogen (H₂) service
Material Compatibility
Carbon Steel for Hydrogen (H₂)
Is Carbon Steel the right valve material for Hydrogen (H₂)? The engineering rating, the conditions that limit it, and the better alternatives.
Fair
Is Carbon Steel compatible with Hydrogen (H₂)?
For Hydrogen (H₂) (H₂) valve service, Carbon Steel is fair — acceptable with limits. Max 22 HRC per NACE MR0175 for sour/H₂ service. Not for HP hydrogen.
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
Need Carbon Steel valves for Hydrogen (H₂)?
Send your concentration, temperature and pressure — we confirm Carbon Steel suitability for Hydrogen (H₂) (or recommend an upgrade) and supply with full certification.
Products