Nitric Acid (HNO₃) service
Material Compatibility
Carbon Steel for Nitric Acid (HNO₃)
Is Carbon Steel the right valve material for Nitric Acid (HNO₃)? The engineering rating, the conditions that limit it, and the better alternatives.
Fair
Is Carbon Steel compatible with Nitric Acid (HNO₃)?
For Nitric Acid (HNO₃) (HNO₃) valve service, Carbon Steel is fair — acceptable with limits. Only for >65% concentration at ambient temperature - passivation layer forms.
Better materials for Nitric Acid (HNO₃)
Higher-rated options for this service, from the compatibility data.
All rated materials for Nitric Acid (HNO₃)
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
Need Carbon Steel valves for Nitric Acid (HNO₃)?
Send your concentration, temperature and pressure — we confirm Carbon Steel suitability for Nitric Acid (HNO₃) (or recommend an upgrade) and supply with full certification.
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