Compatibility Atlas
Material Compatibility Reference
SS 304 — Fluid Compatibility
Which industrial fluids SS 304 valves can handle — rated across 4 process media with engineering notes. The compatibility reference for specifying SS 304 body and trim.
What fluids is SS 304 compatible with?
SS 304 is rated across 4 industrial fluids in our compatibility data. It performs well in Demineralised Water (DM Water / Deionised Water), Ammonia (NH₃), Molasses. It is not recommended for Hydrofluoric Acid (HF). Full ratings and notes below — always confirm against concentration, temperature and velocity.
Material grades & metallurgy
Excellent1 fluids
Demineralised Water (DM Water / Deionised Water)Acceptable for most DM water service; 316L preferred for hot or higher-purity applications.
Good2 fluids
Ammonia (NH₃)Acceptable but not normally required. Used where contamination is a concern.
MolassesAcceptable for industrial molasses (non-food-grade).
Not Recommended1 fluids
Hydrofluoric Acid (HF)Not acceptable for HF service - corrosion and SCC risk.
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
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