Metals Corrosion Resistance Chart
This guide indicates acceptable combinations of more or less aggressive fluids and commonly used materials.
Note! Remember that corrosion is a complicated issue, depending on the combinations of materials and the fluid, the fluid temperature, the surrounding environment and the galvanic currents in the constructions. The table below must be used with care. Always check with the producer of the material.
Fluid
|
Metal |
| Carbon Steel |
Cast Iron |
302 and 304 Stainless Steel |
316 St. Steel |
Bronze |
Durimet |
Monel |
Has
teloy
B |
Ha C |
Titanium |
Cobalt base alloy 6 |
416 St. Steel |
| Acetaldehyde |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
na |
1 |
na |
na |
1 |
| Acetic acid, air free |
3 |
3 |
2 |
2 |
2 |
1 |
2 |
1 |
1 |
1 |
1 |
3 |
| Acetic acid, aerated |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
| Acetic acid, vapors |
3 |
3 |
1 |
1 |
2 |
2 |
2 |
na |
1 |
1 |
1 |
3 |
| Acetone |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Acetylene |
1 |
1 |
1 |
1 |
|
1 |
1 |
1 |
1 |
na |
1 |
1 |
| Alcohols |
1 |
1 |
|
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Aluminum
Sulfate |
3 |
3 |
1 |
1 |
2 |
1 |
2 |
1 |
1 |
1 |
na |
3 |
| Ammonia |
1 |
1 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
| Ammonium chloride |
3 |
3 |
2 |
2 |
2 |
1 |
2 |
1 |
1 |
1 |
2 |
3 |
| Ammonium Nitrate |
1 |
3 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
1 |
1 |
3 |
| Ammonium Phosphate |
4 |
3 |
1 |
1 |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
2 |
| Ammonium Sulfate |
3 |
3 |
2 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
| Ammonium Sulfite |
3 |
3 |
1 |
1 |
3 |
1 |
3 |
na |
1 |
1 |
1 |
2 |
| Aniline |
3 |
3 |
1 |
1 |
3 |
1 |
2 |
1 |
1 |
1 |
1 |
3 |
| Asphalt |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
na |
1 |
1 |
| Beer |
2 |
2 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
Benzene
(benzol) |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Benzoic acid |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
|
1 |
1 |
|
1 |
| Boric acid |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Butane |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
1 |
1 |
Calcium
Chloride (alkaline) |
2 |
2 |
3 |
2 |
3 |
1 |
1 |
1 |
1 |
1 |
na |
3 |
| Calcium hypochlorite |
3 |
3 |
2 |
2 |
2 |
1 |
2 |
3 |
1 |
1 |
na |
3 |
| Carbolic acid |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
Carbon
dioxide, dry |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Carbon
dioxide, wet |
3 |
3 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Carbon
disulfide |
1 |
1 |
1 |
1 |
3 |
1 |
2 |
1 |
1 |
1 |
1 |
2 |
| Carbon tetrachloride |
2 |
2 |
2 |
2 |
1 |
1 |
1 |
2 |
1 |
1 |
na |
3 |
| Carbonic acid |
3 |
3 |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
|
|
1 |
| Chlorine gas |
1 |
1 |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
3 |
2 |
3 |
Chlorine
gas, wet |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
2 |
1 |
2 |
3 |
Chlorine,
liquid |
3 |
3 |
3 |
3 |
2 |
2 |
3 |
3 |
1 |
3 |
2 |
3 |
| Chromic acid |
3 |
3 |
3 |
2 |
3 |
3 |
1 |
3 |
1 |
1 |
2 |
3 |
| Citric acid |
|
3 |
2 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
|
2 |
| Coke oven gas |
1 |
1 |
1 |
1 |
2 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
| Copper sulfate |
3 |
3 |
2 |
2 |
2 |
1 |
3 |
na |
1 |
1 |
na |
1 |
| Cottonseed oil |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Creosote |
1 |
1 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
|
1 |
1 |
| Ethane |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Ether |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Ethyl chloride |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Ethylene |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Ethylene glycol |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
na |
na |
na |
1 |
1 |
| Ferric chloride |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
2 |
1 |
2 |
3 |
| Formaldehyde |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Formic acid |
|
3 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
3 |
2 |
3 |
| Freon wet |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
na |
| Freon dry |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
na |
| Furfural |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Gasoline |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Glucose |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Hydrochloric acid, aerated |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
1 |
2 |
1/2 |
2 |
3 |
| Hydrochloric acid, air free |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
1 |
2 |
1/2 |
2 |
3 |
| Hydrofluoric acid, aerated |
2 |
3 |
3 |
2 |
3 |
2 |
3 |
1 |
1 |
3 |
2 |
3 |
| Hydrofluoric acid, air free |
1 |
3 |
3 |
2 |
3 |
2 |
1 |
1 |
1 |
3 |
na |
3 |
| Hydrogen |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Hydrogen peroxide |
|
1 |
1 |
1 |
3 |
1 |
3 |
2 |
2 |
1 |
na |
2 |
Hydrogen
sulfide, liquid |
3 |
3 |
1 |
1 |
3 |
2 |
3 |
1 |
1 |
1 |
1 |
3 |
| Magnesium Hydroxide |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Mercury |
1 |
1 |
1 |
1 |
3 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
| Methanol |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Methyl ethyl ketone |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
1 |
1 |
| Milk |
3 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
| Natural gas |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Nitric acid |
3 |
3 |
1 |
2 |
3 |
1 |
3 |
3 |
2 |
1 |
3 |
3 |
| Oleic acid |
3 |
3 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Oxalic acid |
3 |
3 |
2 |
2 |
2 |
1 |
2 |
1 |
1 |
2 |
2 |
2 |
| Oxygen |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Petroleum oils |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Phosphoric
acid, aerated |
3 |
3 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
2 |
1 |
3 |
Phosphoric
acid, air free |
3 |
3 |
1 |
1 |
3 |
1 |
2 |
1 |
1 |
2 |
1 |
3 |
Phosphoric
acid vapors |
3 |
3 |
2 |
2 |
3 |
1 |
3 |
1 |
|
2 |
3 |
3 |
| Picric acid |
3 |
3 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
na |
na |
2 |
| Potassium chloride |
2 |
2 |
1 |
1 |
2 |
1 |
2 |
1 |
1 |
1 |
na |
3 |
| Potassium hydroxide |
2 |
2 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
na |
2 |
| Propane |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Rosin |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
|
1 |
1 |
| Silver Nitrate |
3 |
3 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
1 |
2 |
2 |
Sodium
acetate |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Sodium carbonate |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
Sodium
chloride |
3 |
3 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Sodium chromate |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Sodium hydroxide |
1 |
1 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Sodium hypochloride |
3 |
3 |
3 |
3 |
3 |
2 |
3 |
3 |
1 |
1 |
na |
3 |
| Sodium thiosulfate |
3 |
3 |
1 |
1 |
3 |
1 |
3 |
1 |
1 |
1 |
na |
2 |
| Stannous chloride |
2 |
2 |
3 |
1 |
3 |
1 |
2 |
1 |
1 |
1 |
na |
3 |
| Stearic acid |
1 |
3 |
1 |
1 |
2 |
1 |
2 |
1 |
1 |
1 |
2 |
2 |
| Sulfate liquor |
1 |
1 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
|
| Sulfur |
1 |
1 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Sulfur dioxide, dry |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
2 |
| Sulfur trioxide, dry |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
2 |
| Sulfuric acid, aerated |
3 |
3 |
3 |
3 |
3 |
1 |
3 |
1 |
1 |
2 |
2 |
3 |
Sulfuric
acid, air free |
3 |
3 |
3 |
3 |
2 |
1 |
2 |
1 |
1 |
2 |
2 |
3 |
| Sulfurous acid |
3 |
3 |
2 |
2 |
2 |
1 |
3 |
1 |
1 |
1 |
2 |
3 |
| Tar |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
| Trichloroethylene |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Turpentine |
2 |
2 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
| Vinegar |
3 |
3 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
na |
1 |
3 |
| Water, steam boiler feeding system |
2 |
3 |
1 |
1 |
3 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Water, distilled |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
| Water, sea |
2 |
2 |
2 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
3 |
| Whiskey |
3 |
3 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
3 |
| Wine |
3 |
3 |
1 |
1 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
3 |
| Zinc chloride |
3 |
3 |
3 |
3 |
3 |
1 |
3 |
1 |
1 |
1 |
2 |
3 |
| Zinc sulfate |
3 |
3 |
1 |
1 |
2 |
1 |
1 |
1 |
1 |
1 |
1 |
2 |
|
