Reference Data Corrosion Resistance Guide
SYMBOLS: ++ First choice; very low corrosion rate, typically <5 mpy, or <0.005 Inch/year, (1 mil = 1/1000 inch). + Good choice; low corrosion rate, typically <20 mpy, or <0.02 Ipy. - Can use; corrosion rate up to 50 mpy (0.05 Ipy); some limitations may apply. X Not recommended. (-) Brackets indicate probable limitations, E.G., At higher temperatures, [symbol “T”]; at higher concentrations, [symbol “C”]; due to pitting, [symbol “P”]; due to local grain boundary attack in the metal - intergranular corrosion, [symbol “I”]; due to stress corrosion cracking, [symbol “S”].
Note:
nd No available data
Corrosion Resistance Guide
Corrosion Resistance Guide
Chemical Species
Aluminum HDG/Steel 316SS ++ + ++
Chemical Species
Aluminum HDG/Steel 316SS + nd -
Calcium carbonate
Acetaldehyde
Calcium chloride - satd.
+
X
(+)
Acetic acid - aerated
(+) (+)
X (++) T X (++) T ++ ++
S
T,C
Calcium hydroxide - satd. Calcium hypochlorite - satd. Carbon dioxide - wet Carbon disul de (bisul de)
X
nd
+
Acetic acid - not aerated
T,C
X
X
(-) P
Acetone
++ ++
++
+
+
Acetylene
nd nd nd
++ ++
++
+
++
Allyl alcohol
+ + X X
Carbon tetrachloride
X
+
(++)
Aluminum chloride - dry Aluminum chloride - wet Aluminum sulfate - satd.
(+)
P,S
T,P
Carbolic acid - see phenol Carbonic acid - see carbon dioxide Caustic potash - see potassium hydroxide Caustic soda - see sodium hydroxide Chlorine gas - wet
X
(-)
P
nd
+
X
++ (-) P,S
Ammonia - anhydrous
++
++ ++
Ammonia - gas
-
+
(+)
T
Chloroform
(+)
+ (+) T,S (+) nd P X (++) P (-) X P
dry
Ammonium acetate
+
nd nd
+
Chromic acid
+
Ammonium bicarbonate
-
(+)
T
Citric acid - dilute
(+)
T,C
Ammonium carbonate - satd. Ammonium chloride - 28% Ammonium chloride - 50%
+
X
+
Copper chloride
X X X
X X
X (+) P,S
Copper nitrate
nd
++
X
X
Copper sulfate
-
+ +
Ammonium hydroxide
+ +
+
(++) (++)
C
Cresol
+
+
Ammonium nitrate
X
S
l Crude oi
++
++ ++ ++ ++ ++ + ++ ++ ++ (+) P,S ++ ++
Ammonium phosphate - 40% Ammonium sulfate - to 30%
X
nd
+
Diethylamine Dimethyl ketone - see acetoneEthyl acetate
+
X
- + ++ ++
(++) dry
Amyl acetate
++ ++ ++ ++
Ethyl alcohol (ethanol)
++
+
+
Asphalt
Ethylene dichloride
(-)
dry
Beer
X
++
Ethylene glycol (glycol)
++
Benzene (benzol)
+
(+)
P
Ferric chloride
X X
X
X
Benzoic acid Benzol - see benzene Boric acid (boracic acid)
+
nd
+
c nitrate - 10% Ferri
nd nd
+
++
nd (++) T,P
Ferrous sulfate
+
(+)
P
ne - wet Bromi
X
X
X
Formaldehyde (methanal)
(+) P
++ (++) T,C X X
Butadiene (butylene)
+
+
+
Fluorine gas - moist Formalin - see formaldehydeFormic acid (methanoic acid) - 10%
X
Butyl alcohol (butanol)
++
++ ++
(+) T
X (+) P,C
Butyric acid
+ +
X
+
Furfural (furfuraldehyde)
+
nd
+
Cadmium sulfate
nd
++
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