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

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Stainless Steel Tubing Pipe

304 Stainless Steel Pipe
304L Stainless Steel Pipe
304H Stainless Steel Pipe
304/304L Stainless Steel Tubing
309S Stainless Steel Pipe
310S Stainless Steel Pipe
316L Stainless Steel Tubing
316Ti Stainless Steel Tube
317L Stainless Steel Pipe
321 321H Stainless Steel
347 347H Stainless Steel
904L N08094 Seamless Tubes
17-4 PH 630 UNS S17400 Stainless Steel
253MA S30815 Stainless Steel Tube
S31254 254 SMO Pipe
S31803 Stainless Steel
2205 Duplex Pipe Tubing
S32101 Stainless Steel
S32304 Stainless Steel
2507 Super Duplex Pipe
S32750 Super Duplex Pipe
S32760 Super Duplex Steel
1.4462 Stainless Steel Pipe
ASTM A213 | ASTM A269
ASTM A312 | ASTM A511
ASTM A789 | ASTM A790
ASTM B161 / ASME SB 161 | ASTM B111
EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes

Nickel Alloy Tubing:

UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
N08810 Incoloy 800H Tube
N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
DIN 2391 Seamless Precision Steel Tubes
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube