Compatibility Atlas
Hastelloy C-276 vs PTFE-linedfor Hydrochloric Acid (HCl)
Which valve material handles Hydrochloric Acid (HCl) better — a side-by-side of compatibility ratings and the engineering reasons behind them.
Verdict
For Hydrochloric Acid (HCl), Hastelloy C-276 and PTFE-lined carry the same rating (Excellent) — choose on cost, availability and the wider service envelope.
Hastelloy C-276
ExcellentBest alloy choice for all concentrations.
All fluids Hastelloy C-276 handles →Ratings and notes are drawn from the Hydrochloric Acid (HCl) service guide. Confirm against concentration, temperature and velocity.
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Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
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