Compatibility Atlas
Material Compatibility Reference
SS 316L — Fluid Compatibility
Which industrial fluids SS 316L valves can handle — rated across 45 process media with engineering notes. The compatibility reference for specifying SS 316L body and trim.
What fluids is SS 316L compatible with?
SS 316L is rated across 45 industrial fluids in our compatibility data. It performs well in Acetone (Propanone), Amine (DEA / MEA / MDEA - Gas Sweetening), Argon (Ar), Carbon Dioxide (CO₂), Cooling Water, Demineralised Water (DM Water / Deionised Water). It is not recommended for Chlorine Dioxide (ClO₂), Hydrochloric Acid (HCl). Full ratings and notes below — always confirm against concentration, temperature and velocity.
Material grades & metallurgy
Excellent26 fluids
Acetone (Propanone)Preferred for pharmaceutical and cosmetic grade acetone.
Amine (DEA / MEA / MDEA - Gas Sweetening)Standard material for rich amine, regenerator, and reboiler service.
Argon (Ar)Best for cryogenic LAR service and high-purity applications.
Carbon Dioxide (CO₂)Standard for wet CO₂ or food-grade CO₂ service.
Cooling WaterFor high-quality or process-critical cooling water systems.
Demineralised Water (DM Water / Deionised Water)Standard material for DM water service - no iron contamination, corrosion-resistant.
Diesel Fuel / Fuel OilPreferred for marine and food-grade fuel handling.
Ethanol / Industrial Alcohol (C₂H₅OH)Preferred for pharmaceutical and food-grade ethanol service.
Glycerine / Glycerol (C₃H₈O₃)Preferred for pharmaceutical and food-grade glycerine.
Hot Water (District Heating / Process Hot Water)For pharmaceutical process hot water and where chemical compatibility is required.
Liquid Nitrogen (LN₂)Best choice - austenitic stainless steel retains toughness at −196°C.
LPG - Liquefied Petroleum GasAcceptable - often used for instrument and small bore fittings.
MEG / Glycol (Monoethylene Glycol - Gas Dehydration)Preferred for inhibited MEG and TEG service, especially at elevated temperature in regeneration.
Methanol (Methyl Alcohol)Used for hygienic or analytical grade methanol.
MolassesPreferred for food-grade molasses service - hygienic, cleanable.
Naphtha (Light / Heavy Naphtha)For process naphtha streams requiring higher corrosion resistance.
Natural GasInstrument and small bore service.
Nitrogen (N₂)Excellent across all conditions including cryogenic liquid nitrogen.
Phenol (C₆H₅OH - Carbolic Acid)Preferred for phenol - better corrosion resistance and cleanliness.
Propane (C₃H₈ - LPG Component)Optional - better corrosion resistance for propane with moisture.
Propylene / Propene (C₃H₆)For high-purity propylene in polymerisation feed systems.
Synthesis Gas (Syngas - CO + H₂)Excellent for syngas at all conditions; austenitic SS not susceptible to HE.
Toluene (C₇H₈)Preferred for pharmaceutical and food-grade toluene.
Urea Solution (Carbamide / DEF / AdBlue)Standard material for all urea concentrations. Passive film stable in urea.
Vacuum ServiceFor pharmaceutical and clean vacuum service.
Xylene (C₈H₁₀ - Ortho, Meta, Para)Preferred where corrosion protection is required.
Good9 fluids
Boiler Feedwater (BFW)Used where specific chemical treatment demands SS, or pharmaceutical BFW.
Carbon Monoxide (CO)Acceptable for CO service; avoid where nickel content is a concern for Ni(CO)₄ formation.
Caustic Potash (KOH - Potassium Hydroxide)Good for dilute KOH; some SCC risk with concentrated hot KOH.
Crude OilFor sour crude where pitting resistance is needed. Not required for sweet crude.
Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)Optional - adds corrosion resistance where sulphur compounds are present.
Hydrogen (H₂)Standard for hydrogen service. Austenitic SS has low susceptibility to HE.
Hydrogen Sulphide (H₂S - Sour Gas)Acceptable for most H₂S service; use low-carbon grades, verify with NACE MR0175 SSC zone.
Nitric Acid (HNO₃)Slightly lower corrosion resistance than 304L for HNO₃ due to molybdenum - but still widely used.
Phosphoric Acid (H₃PO₄)Food-grade or pure H₃PO₄ up to 85% at ambient. Not for wet process acid with fluoride.
Fair8 fluids
Acetic Acid (CH₃COOH)Acceptable for dilute (<30%) cold acetic acid. Not for hot concentrated service.
Brine / Sodium Chloride SolutionAcceptable only for dilute brine at ambient temperature. PREN 24 - borderline for high chloride.
Caustic Soda (NaOH)Risk of caustic SCC above 60°C. Cold dilute service only - verify.
Chlorine (Cl₂)Wet chlorine - not recommended due to Cl-SCC. Dry service - acceptable.
SeawaterPitting and crevice corrosion risk. Not recommended for seawater service. PREN must be verified.
Slurry - Abrasive Pulp / Mineral SlurryAcceptable only for mildly abrasive slurry - limited by wear, not corrosion.
Sodium Hypochlorite (NaOCl - Bleach)Acceptable for dilute (<1%) service only. Not for concentrated hypochlorite.
Sulphuric Acid (H₂SO₄)Up to ~20% at <25°C. Not recommended above 20% or elevated temperature.
Poor1 fluids
Chlorine Dioxide (ClO₂)Pitting and SCC in ClO₂ - not recommended except for very dilute solution.
Not Recommended1 fluids
Hydrochloric Acid (HCl)Chloride SCC risk is severe. Avoid.
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
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