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Corrosion Resistance Table of Stainless Steel Nickel Monel Inconel
The table below indicates the approximate corrosion resistance of selected corrosion resistant metals to a range of common chemicals. This is collated information from various sources but is of limited quality. For good quality information please consult reputable reference texts and/or the links provided below the table. Key to Letters designating corrosion resistance
A...Excellent Good Resistance less than 0,01mm
per month (0,1 mm per year)
B...Good Resistance < 0,01mm to 0,1mm per
month (0,1mm to 1mm per year)
C...Fair Resistance 0,1mm to 0,25mm per month (
1mm to 3mm per year)
D...Some Resistance 0,25mm to 0,9mm per month
(3mm -11 mm per year)
E...No Resistance > 0,9 mm per month (11 mm
per year)
Chemical /condition
Temp
oC
304, 321,347
Stainless Steel
316,316L
Stain. Stl.
Nickel
Monel
Iconel
Hastalloy C
Acetic Acid (20%)
21
A
A
A
A
A
A
Acetic Acid (50%)
21
A
A
B
A
A
A
Acetic Acid (50%)
Boiling
C
B
B
A
B
A
Acetic Acid (80%)
21
A
A
B
A
A
A
Acetic Acid (80%)
Boiling
D
B
B
A
B
A
Acetic Acid (100%)
21
A
A
A
A
A
A
Acetic Acid (100%)
Boiling
C
B
C
B
B
A
Acetic Acid (100% - 150 lb pressure)
204
E
C
-
-
-
A
Acetic Anhydride
Boiling
A
A
A
A
A
A
Acetic Anhydride
21
A
A
A
A
A
A
Acetic Vapours (100%)
Hot
E
C
C
B
B
Acetic Vapours (30%)
Hot
C
B
-
-
-
Acetone
Boiling
A
A
A
A
A
A
Acetone
21
A
A
A
A
A
Alcohol Ethyl
21
A
A
A
A
A
A
Alcohol Ethyl
Boiling
A
A
A
A
A
A
Alcohol Methyl
21
A
A
A
A
A
A
Alcohol Methyl
66
C
B
A
A
A
A
Aluminium Acetate - saturated
A
A
-
-
-
Aluminium Chloride
21
D
C
B
B
C
A
Alum (Chrome) 5%
21
A
A
C
C
A
Aluminium Fluoride
21
D
C
A
A
B
B
Aluminium Hydroxide - saturated
A
A
A
A
A
B
Aluminium
Molten
E
E
E
E
E
Aluminium Potassium Sulphate (2% alum)
21
A
A
A
A
A
C
Aluminium Potassium Sulphate (10%)
21
A
A
A
A
A
C
Aluminium Potassium Sulphate (10%)
Boiling
B
A
B
A
B
C
Aluminium Potassium Sulphate (saturated)
Boiling
C
B
C
B
B
C
Aluminium Sulphate (10%)
21
A
A
A
A
A
B
Aluminium Sulphate (10%)
Boiling
B
A
B
A
B
B
Aluminium Sulphate (saturated)
21
A
A
A
A
A
B
Aluminium Sulphate (saturated)
Boiling
B
A
B
A
B
B
Ammonia - all concentrations
21
A
A
-
-
A
A
Ammonia - gas
Hot
D
-
-
-
-
A
Ammonia Liquor
21
A
A
C
C
A
A
Ammonia Liquor
Boiling
A
A
C
C
A
A
Ammonium Bicarbonate
21
A
A
A
A
A
Ammonium Bicarbonate
Hot
A
A
A
A
A
Ammonium Carbonate (1% & 5%)
21
A
A
A
A
A
B
Ammonium Chloride (1%)
21
A
A
A
A
A
D
Ammonium Chloride (10% solution)
Boiling
A
A
A
A
B
D
Ammonium Chloride (28% solution)
Boiling
B
A
A
A
B
D
Ammonium Chloride (50% solution)
Boiling
B
A
A
A
B
D
Ammonium Nitrate (All con. agitated)
21
A
A
C
C
A
B
Ammonium Nitrate (All con. aerated)
21
A
A
C
C
A
B
Ammonium Nitrate (saturated)
Boiling
A
A
E
E
B
B
Ammonium Oxalate (5%)
21
A
A
A
A
A
A
Ammonium Persulphate (5%)
21
A
A
E
E
A
B
Ammonium Phosphate (5%)
21
A
A
A
A
A
B
Ammonium Sulphate (1% & 5% agitated)
21
A
A
A
A
A
B
Ammonium Sulphate (1% & 5% aerated)
21
A
A
A
A
A
B
Ammonium Sulphate (10%)
Boiling
B
A
B
A
B
B
Ammonium Sulphate (saturated)
Boiling
B
A
B
A
B
B
Ammonium Sulphite
Cold
A
A
C
B
B
Ammonium Sulphite
Boiling
A
A
E
C
C
Aniline (3%)
21
A
A
A
A
A
B
Aniline (conc. Crude)
21
A
A
A
A
A
B
Aniline Hydrochloride
21
E
D
B
B
C
D
Antimony Trichloride
21
E
D
A
A
A
Barium Carbonate
21
A
A
A
A
A
B
Barium Chloride (5%)
21
A
A
A
A
A
B
Barium Chloride (saturated)
21
A
A
A
A
A
Barium Chloride (aqueous solution)
Hot
B
A
A
A
B
Barium Nitrate (aqueous solution)
Hot
A
A
C
C
B
Barium Sulphate Barytes (blanc * * *ixe)
21
A
A
A
A
A
A
Benzene
21
A
A
A
A
A
B
Benzoic Acid
21
A
A
A
A
A
B
Boracic Acid (5%)
Hot/Cold
A
A
A
A
A
Borax (5%)
Hot
A
A
A
A
A
B
Bromide (dry)
21
-
-
A
A
A
Bromine Water
21
E
D
D
D
D
A
Butyric Acid (5%)
21
A
A
A
A
A
A
Butyric Acid (5%)
66
A
A
A
A
A
A
Butyric Acid (aqueous solution - sp. g. 0.964)
Boiling
A
A
-
-
A
A
Calcium Carbonate
21
A
A
A
A
A
B
Calcium Chlorate (dilute solution)
21
A
A
A
A
A
Calcium Chlorate (dilute solution)
Hot
A
A
A
A
B
Calcium Chloride (dilute solution)
21
B
A
A
A
A
A
Calcium Chloride (concentrated solutions)
21
B
A
A
A
A
A
Calcium Hydroxide (10%)
Boiling
A
A
A
A
A
A
Calcium Hydroxide (20%)
Boiling
A
A
A
A
A
A
Calcium Hydroxide (50%)
Boiling
C
B
A
A
A
A
Calcium Hyperchlorite (2%)
21
B
A
C
C
B
B
Calcium Sulphate (saturated)
21
A
A
A
A
A
B
Carbolic Acid (Phenol)
Boiling
A
A
A
A
A
A
Carbonated water
A
A
A
A
A
Carbon Bisulphide
21
A
A
A
A
A
Carbon monoxide gas
871
A
A
-
-
-
B
Carbon monoxide gas
760
A
A
-
-
-
B
Carbon tetrachloride (pure)
21
A
A
A
A
A
A
Carbon tetrachloride (aqueous solution - 5-10%)
21
C
-
A
A
A
Chloracetic Acid
21
D
C
A
A
A
A
Chlorbenzol Conc. (pure)
21
A
A
A
A
A
Chloric Acid
21
E
D
D
D
D
A
Chlorinated Water (saturated)
21
C
B
C
C
B
A
Chlorine gas (dry)
21
C
B
C
C
C
A
Chlorine gas (moist)
21
D
C
C
C
C
A
Chlorine gas
100
E
D
A
A
A
Chloroform
21
A
A
A
A
A
A
Chromic Acid (5%)
21
A
A
A
A
A
B
Chromic Acid (10% CP)
Boiling
C
B
C
B
C
A
Chromic Acid (50% Com. Cont. SO3
Boiling
D
C
-
-
-
B
Chromium Plating Bath
21
A
A
C
C
A
Citric Acid (5% still)
21
A
A
A
A
A
A
Citric Acid (5% still)
66
A
A
A
A
A
A
Citric Acid (15%)
21
A
A
A
A
A
A
Citric Acid (15%)
Boiling
B
A
B
A
A
A
Citric Acid (concentrated)
Boiling
C
B
B
A
B
A
Copper Acetate (saturated sol.)
21
A
A
C
C
A
Copper Carbonate (sat. solution in 50% NH_OH)
A
A
C
C
A
Copper Chloride (1% agitated)
21
B
A
B
B
A
Copper Chloride (1% aerated)
21
B
A
B
B
A
Copper Chloride (5% agitated)
21
C
B
C
C
C
Copper Chloride (5% aerated)
21
E
D
D
D
C
Copper Cyanide (saturated solution)
Boiling
A
A
B
B
B
A
Copper Nitrate (1% and 5%)
21
A
A
C
C
A
B
Copper Nitrate (50% aqueous solution)
Hot
A
A
E
E
C
B
Copper Sulphate (5%)
21
A
A
B
B
A
A
Copper Sulphate (saturated solution)
Boiling
A
A
C
C
C
A
Creosote (Coal Tar)
Hot
A
A
A
A
A
A
Creosote Oil
Hot
A
A
A
A
A
Cyanogen Gas
21
A
A
A
A
A
Dinitrochlorbenzol (melted and solidified)
21
A
A
-
-
-
Ether
21
A
A
A
A
A
B
Ethyl Chloride
21
A
A
A
A
A
B
Ethylene Chloride
21
A
A
A
A
A
Ferric Chloride (1% solution - still)
21
B
A
B
C
C
B
Ferric Chloride (1% solution - still)
Boiling
D
C
E
E
E
B
Ferric Chloride (5% solution - still)
21
D
C
D
D
C
B
Ferric Chloride (5% - agitated)
21
C
C
D
D
C
B
Ferric Chloride (5% - aerated)
21
C
C
D
D
C
B
Ferric Hydroxide (Hydrated Iron Oxide)
21
A
A
A
A
A
Ferric Nitrate (1% and 5%)
21
A
A
D
D
A
B
Ferric Sulphate (1% and 5%)
21
A
A
C
C
A
A
Ferrous Sulphate (dilute sol.)
21
A
A
A
A
A
B
Fluorine
21
E
E
A
A
A
B
Formalin (40% sol. Formaldehyde)
A
A
A
A
A
Formic Acid (5% still)
21
B
A
A
A
A
A
Formic Acid (5% still)
66
B
A
A
A
A
A
Fuel Oil
Hot
A
A
B
B
A
A
Fuel Oil (containing sulphuric acid)
C
B
B
B
B
A
Gallic Acid (5% solution)
21
A
A
A
A
A
B
Gallic Acid (5% solution)
66
A
A
A
A
A
B
Glue (dry)
21
A
A
A
A
A
Glue (solution - acid)
21
B
A
A
A
A
Glue (solution - acid)
60
B
A
A
A
A
Glycerine
21
A
A
A
A
A
A
Hydrochloric Acid (all concentrations)
21
E
E
B
B
C
A/B
Hydrocyanic Acid
A
A
A
A
A
A
Hydrofluosilicic Acid
21
E
D
A
A
B
B
Hydrogen Peroxide
21
A
A
A
A
A
A
Hydrogen Peroxide
Boiling
B
A
-
-
-
A
Hydrogen Sulphide (dry)
A
A
A
A
A
A
Hydrogen Sulphide (wet_
B
A
A
A
A
A
Hyposulphite Soda (Hypo)
A
A
B
A
A
Iodine
E
D
D
D
D
A
Iodoform
A
A
-
-
-
D
Lactic Acid (5%)
21
A
A
A
A
A
B
Lactic Acid (5%)
66
B
A
A
A
A
B
Lactic Acid (10%)
Boiling
D
B
C
C
B
B
Lactic Acid (10%)
66
C
B
B
B
B
B
Lead
Molten
B
B
D
D
B
Linseed Oil
21
A
A
A
A
A
Magnesium Chloride (1% and 5% - still)
21
A
A
A
A
A
A
Magnesium Chloride (1% and 5% - still)
Hot
C
B
A
A
A
A
Magnesium Sulphate
Hot/Cold
A
A
A
A
A
B
Malic Acid
Hot/Cold
B
A
A
A
A
B
Mayonnaise
21
A
A
A
A
A
A
Mercuric Chloride (dilute solutions
E
D
D
D
D
C
Mercury
A
A
A
A
A
A
Methanol (Methyl Alcohol)
21
A
A
A
A
A
A
Mixed Acids (53% H2SO4)
Cold
A
A
D
D
A
Mixed Acids (45% HN03)
Cold
A
A
D
D
A
Molasses
A
A
A
A
A
A
Muriatic Acid
21
E
E
B
B
C
Mustard
21
A
A
A
B
B
A
Naphtha
21
A
A
A
A
A
B
Naphtha (crude)
21
A
A
A
A
A
B
Nickel Chloride (solution)
21
A
A
B
B
B
B
Nickel Sulphate
Hot/Cold
A
A
A
A
A
B
Niter Cake
Fused
B
A
-
-
-
Nitric Acid (5% solution)
21
A
A
E
E
B
A
Nitric Acid (20% solution)
21
A
A
E
E
A
A
Nitric Acid (50% solution)
21
A
A
E
E
A
A
Nitric Acid (50% solution)
Boiling
A
A
E
E
C
A
Nitric Acid (65% solution)
Boiling
B
B
E
E
D
A
Nitric Acid (concentrated)
21
A
A
E
E
A
B
Nitric Acid (concentrated)
Boiling
D
D
E
E
D
B
Nitrous Acid (5% solution)
21
A
A
D
D
A
D
Oils (crude)
Hot/Cold
A
A
A
A
A
Oils (vegetable, mineral)
Hot/Cold
A
A
A
A
A
Oleic Acid
21
A
A
A
A
A
A
Oxalic Acid (5%)
Hot/Cold
A
A
A
A
A
B
Oxalic Acid (10%)
21
A
A
A
A
A
B
Oxalic Acid (10%)
Boiling
B
C
B
A
B
B
Paraffin
Hot/Cold
A
A
A
A
A
B
Petroleum Ether
A
A
A
A
A
Phenol
A
A
A
A
A
A
Phosphoric Acid (1%)
21
A
A
A
A
A
A
Phosphoric Acid (5%)
21
A
A
A
A
A
A
Phosphoric Acid (10% - still)
21
C
A
B
A
A
A
Phosphoric Acid (10% - agitated)
21
C
B
B
B
B
A
Phosphoric Acid (10% - aerated)
21
C
B
C
C
B
A
Picric Acid
21
A
A
-
-
-
B
Potassium Bichromate
21
A
A
A
A
A
Potassium Bromide
21
B
A
A
A
A
B
Potassium Carbonate (1%)
21
A
A
A
A
A
B
Potassium Carbonate (1%)
Hot
A
A
A
A
A
B
Potassium Chlorate
A
A
A
A
A
B
Potassium Chloride (1% and 5%)
21
A
A
A
A
A
A
Potassium Chloride (1% and 5%)
Boiling
A
A
A
A
A
A
Potassium Ferricyanide (5%)
21
A
A
-
-
-
B
Potassium Ferrocyanide (5%)
21
A
A
-
-
-
B
Potassium Hydroxide (5%)
21
A
A
A
A
A
B
Potassium Hydroxide (27%)
Boiling
A
A
A
A
A
B
Potassium Hydroxide (50%)
Boiling
B
A
A
A
A
B
Potassium Nitrate (1% and 5%)
21
A
A
A
A
A
B
Potassium Nitrate (1% and 5%)
Hot
A
A
A
A
A
B
Potassium Oxalate
A
A
A
A
A
A
Potassium Permanganate (5%)
21
A
A
A
A
A
A
Potassium Sulphate (1% and 5%)
21
A
A
A
A
A
B
Potassium Sulphate (1% and 5%)
Hot
A
A
A
A
A
B
Potassium Sulphide (salt)
A
A
A
A
A
Pyrogallic Acid
A
A
A
A
A
Quinine Bisulphate (dry)
B
A
A
A
A
Quinine Sulphate (dry)
A
A
A
A
A
Rosin
Molten
A
A
A
A
A
Sea Water
A
A
A
A
A
A
Sewage
A
A
A
A
A
Silver Bromide
B
A
-
-
-
A
Silver Chloride
E
E
-
-
-
Silver Nitrate
A
A
E
E
A
A
Soap
21
A
A
A
A
A
A
Sodium Acetate (moist)
A
A
A
A
A
A
Sodium Bicarbonate (all concentrations)
21
A
A
A
A
A
B
Sodim Bicarbonate (5% - still)
66
A
A
A
A
A
B
Sodium Carbonate (5%)
21
A
A
A
A
A
A
Sodium Carbonate (5%)
66
A
A
A
A
A
A
Sodium Chloride (5% - still)
21
A
A
A
A
A
A
Sodium Chloride (5% - still)
66
A
A
A
A
A
A
Sodium Chloride (20% aerated)
21
A
A
A
A
A
A
Sodium Chloride (saturated)
21
A
A
A
A
A
A
Sodium Chloride (saturated)
Boiling
B
A
A
A
A
A
Sodium Fluoride (5% solution)
B
A
A
A
A
A
Sodium Hydroxide
A
A
A
A
A
Sodium Hypochlorite (5% - still)
B
A
C
C
C
A
Sodium Hyposulphite
21
A
A
A
A
A
Sodium Nitrate
Fused
C
B
A
B
A
B
Sodium Sulphate (5% -still)
21
A
A
A
A
A
B
Sodium Sulphate (all concentrations)
21
A
A
A
A
A
B
Sodium Sulphide (saturated)
B
A
A
A
A
B
Sodium Sulphite (5%)
21
A
A
A
A
A
B
Sodium Sulphite (10%)
66
A
A
A
A
A
B
Stannic Chloride (Sp. G. 1.21)
Boiling
E
E
B
B
C
Stannic Chloride (solution)
21
D
C
A
B
B
Stannous Chloride (saturated)
C
A
A
B
B
Stearic Acid
A
A
A
A
A
Sulphur Chloride
E
D
A
A
A
Sulphur Dioxide Gas (moist)
21
B
A
D
C
C
Sulphur Dioxide Gas (moist)
302
A
A
-
-
-
Sulphur (dry)
Molten
A
A
A
A
A
Sulphur (wet)
B
A
B
B
A
Sulphuric Acid (5%)
21
C
B
A
A
A
B
Sulphuric Acid (5%)
Boiling
E
C
D
A
C
B
Sulphuric Acid (10%)
21
C
B
B
A
B
B
Sulphuric Acid (10%)
Boiling
E
D
C
A
C
B
Sulphuric Acid (50%)
21
D
C
B
A
B
B
Sulphuric Acid (50%)
Boiling
E
D
E
E
E
B
Sulphuric Acid (concentrated)
21
A
A
B
B
B
A
Sulphuric Acid (concentrated)
Boiling
D
D
E
E
E
A
Sulphuric Acid (concentrated)
149
E
E
E
E
E
A
Sulphuric Acid (fuming)
21
C
B
C
B
B
B
Sulphurous Acid (saturated)
21
C
B
E
E
E
B
Sulphurous Acid (saturated 60 lb pressure)
121
C
B
E
E
E
B
Sulphurous Acid (saturated 70 - 125 lb pressure)
154
C
B
E
E
E
B
Sulphurous Acid (150 lb pressure)
191
C
B
E
E
E
B
Sulphurous Acid (sulphurous spray)
21
D
D
E
E
E
B
Tannic Acid
21
A
A
A
A
A
B
Tannic Acid
66
B
A
A
A
A
B
Tartaric Acid
21
A
A
A
A
A
B
Tartaric Acid
66
B
A
A
A
A
B
Tin
Molten
C
C
E
E
E
C
Trichloracetic Acid
21
E
E
B
B
B
B
Varnish
21
A
A
A
A
A
A
Varnish
Hot
A
A
A
A
A
A
Vinegar Fumes
B
A
B
A
A
A
Vinegar (still)
21
A
A
A
A
A
A
Vinegar (agitated)
A
A
A
A
A
A
Vinegar (aerated)
21
A
A
B
A
A
A
Zinc
Molten
E
E
E
E
E
Zinc Chloride (5% - still)
21
A
A
A
A
A
B
Zinc Chloride (5% - still)
Boiling
B
B
B
B
B
B
Zinc Sulphate (5%)
21
A
A
A
A
A
A
Zinc Sulphate (saturated)
21
A
A
A
A
A
A
Zinc Sulphate (25%)
Boiling
A
A
A
A
A
A
Chemical /condition
Temp
oC
304, 321,347
Stain. Stl.
316,316L
Stain. Stl.
Nickel
Monel
Iconel
Hastalloy C
Corrosion | Metallographic Test | Metallographic Test Report | Stress Corrosion Cracking | Chloride SCC | Minimizing Chloride SCC | Stainless Steel Corrosion | ntergranular Corrosion | Stainless Steel Intergranular Corrosion | Corrosion of Piping | Corrosion Resistant Stainless Steel | Corrosion Resistant Material | Corrosion Resistance | Seawater Resistance | Corrosion Mechanism | Corrosion Process | Surface Coatings for Corrosion | Galvanic Corrosion | Galvanic Corrosion Risks | Causes of Metal Corrosion | Stainless Steel for Corrosion Resistance | ASTM A262 | ASTM E112 | Corrosion Resistance Table | Metals Corrosion Resistance | Oxidation Resistance | NACE MR0175/ISO 15156 | Carbon on Corrosion Resistance
Related References:
Selection of Stainless Steel fo Handling Sulphur Dioxide SO2 and Sulphur Trioxide SO3
Selection of Stainless Steel for Handling Phosphoric Acid H3PO4
Selection of Stainless Steel for Handling Hydrofluoric Acid HF
Selection of Stainless Steel for Handling Citric Acid C3H4OH (COOH)3
Selection of Stainless Steel for Handling Ammonia NH3
Selection of Stainless Steel for Handling Chlorine Cl2 and Chlorine Dioxide ClO2
Selection of Stainless Steels For Handling Hydrochloric Acid HCl
Selection of Stainless Steel for Handling Sulphuric Acid H2SO4
Selection Stainless Steel for Handling Sodium Hydroxide NaOH
Selection of stainless steels for handling acetic acid (CH3COOH)
Selection of stainless steels for handling sodium hypochlorite (NaOCl)
Selection of stainless steels for handling nitric acid (HNO3)
NACE MR 0175/ISO 15156 for Corrosion Resistant Alloys for Sulphide Service
Selection of stainless steels in water supply and waste water treatment
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