Corrosion Resistance Chart

The figures quoted in the table below present the following categories of resistance to corrosion:

Category 1 – recommended
Category 2 – partially resistant
Category 3 – not recommended

Corrosion Resistance of Materials
( based on BS 6501 – 2004 )
Media / Service Condition 304 316 321 Bronze 510 Monel 400 Carbon steel Copper-
based
Acetic acid 5 % to 20 % agitated or aerated 1 1 1 3 2 3 3
Acetic acid 50 %, 70°F 1 1 1 3 3 3 3
Acetic acid 50 % to 80 %, boiling 3 2 3 3 3 3 3
Acetic acid 80 %, 70°F 1 1 1 3 1 3 3
Acetic acid 100 %, boiling 3 2 3 3 2 3 3
Acetic acid 100 %, 70°F 1 1 1 3 1 3 3
Acetic anhydride 1 1 1 3 2 3 3
Aceton, boiling 1 1 1 1 1 3 1
Acetyl chloride, boiling 2 2 2 2 1 3 2
Formaldehyde, 40 % solution 1 1 1 1 1 2 1
Fuel oil 1 1 1 1 2 2 1
Fuel oil containing sulfuric acid 3 2 3 3 2 3 3
2-Furaldehyde (Furfural) 1 1 1 1 2 2 1
Gelatin 1 1 1 1 1 3 1
Glue, dry 1 1 1 2 2 1 2
Glue solution, acid 2 1 2 3 2 2 3
Glycerol (Glycerine) 1 1 1 1 1 2 1
Hydrochloric acid, all concentrations 3 3 3 3 3 3 3
Hydrocyanic acid 1 1 1 3 2 3 3
Hydrofluoric acid 3 3 3 3 1 3 3
Hydrogen peroxide, 70°F 2 1 2 3 2 3 3
Hydrogen peroxide, boiling 2 1 2 3 2 3 3
Hydrogen sulfide, dry 1 1 1 1 3 2 1
Hydrogen sulfide, wet 2 1 2 3 3 3 3
Ink 2 1 2 3 1 3 3
Iodoform 1 1 1 3 2 3 3
Iron (II) chloride (Ferrous chloride) saturated solution 3 1 3 2 3 3 2
Iron (III) chloride (Ferric chloride), 1 % solution, 70°F 2 1 2 3 3 3 3
Iron (III) chloride (Ferric chloride), 1 % solution, boiling 3 3 3 3 3 3 3
Iron (III) chloride (Ferric chloride), 5 % solution agitated, aerated 3 3 3 3 3 3 3
Iron (II) hydroxide (Ferric hydroxide) (hydrated iron oxide) 1 1 1 3 2 3 3
Iron (III) nitrate (Ferric nitrate) 1 % to 5 % quiescent or agitated 1 1 1 3 3 3 3
Iron (III) nitrate (Ferric nitrate) 1 % to 5 % aerated 1 1 1 3 3 3 3
Iron (II) sulfate (Ferrous sulfate) dilute solution 1 1 1 2 3 3 2
Iron (III) sulfate (Ferric sulfate) 1 % to 5 % quiescent or agitated 1 1 1 3 3 3 3
Iron (III) sulfate (Ferric sulfate) 1 % to 5 % quiescent or aerated 1 1 1 3 3 3 3
Iron (III) sulfate (Ferric sulfate) 10 % 1 1 1 3 3 3 3
Kerosene 1 1 1 1 2 2 1
Lactic acid 1%, 70°F 1 1 1 2 2 3 2
Lactic acid 1 %, boiling 1 1 1 3 2 3 3
Lactic acid 5 %, 70°F 1 1 1 2 2 3 2
Lactic acid 5 %, boiling 2 1 2 3 2 3 3
Lactic acid 10 %, 70°F 2 1 2 3 2 3 2
Lactic acid 10 %, boiling 3 2 3 3 2 3 3
Lactic acid concentrated, 70°F 2 1 2 2 2 3 2
Lactic acid concentrated, boiling 3 2 3 3 2 3 3
Lead diacetate (Lead acetate) 5 % 1 1 1 3 2 3 3
Linseed oil 1 1 1 2 1 2 2
Magnesium chloride 1 % quiescent, 70°F 1 1 1 2 1 3 2
Magnesium chloride 1 % quiescent, hot 3 2 3 2 1 3 2
Magnesium chloride 5 % quiescent, 70°F 1 1 1 2 1 3 2
Magnesium chloride 5 % quiescent, hot 3 2 3 2 1 3 2
Magnesium sulfate 1 1 1 1 1 3 1
Malice acid 2 1 2 3 2 3 3
Mash 1 1 1 3 2 3 3
Mercury 1 1 1 3 3 1 3
Methane (refrigerated liquid) 1 1 1 1 1 3 1
Methanol (Methyl alcohol) boiling 3 2 3 1 1 3 1
Mixed acids, 53 % H2SO4 + 45 % HNO3 1 1 1 3 3 3 3
Molasses 1 1 1 1 1 2 2
Mustard 1 1 1 3 2 3 3
Acetylene concentrated 1 1 1 3 1 1 3
Acetylene commercially pure 1 1 1 3 1 1 3
Acid salt mixture 1 1 1 3 3 3 3
Air 1 1 1 1 1 1 1
Aluminium acetate, saturated 1 1 1 3 1 3 3
Aluminium chloride 10 %, quiescent 3 3 3 3 2 3 3
Aluminium chloride 25 %, quiescent 1 1 1 3 2 3 3
Aluminium hydroxide, saturated 1 1 1 1 1 1 1
Aluminium sulfate 5 % 1 1 1 3 1 3 3
Aluminium sulfate 10 %, 70°F 1 1 1 3 1 3 3
Aluminium sulfate 10 %, boiling 2 1 2 3 1 3 3
Aluminium sulfate saturated, 70°F 1 1 1 3 1 3 3
Aluminium sulfate saturated, boiling 2 1 2 3 1 3 3
Aluminium potassium sulfate (alum) 2% to 1 %, 70°F 1 1 1 2 2 3 3
Aluminium potassium sulfate (alum) 10 %, boiling 2 1 2 3 2 3 3
Aluminium potassium sulfate (alum) saturated 3 2 3 3 2 3 3
Ammonia (anhydrous) all concentrations 1 1 1 1 1 1 1
Ammonia (anhydrous) hot gas 3 3 3 3 3 3 3
Ammonia liquor, 70°F 1 1 1 3 3 3 3
Ammonia liquor, boiling 1 1 1 3 3 3 3
Ammonium bromide 2 1 2 3 2 3 3
Ammonium carbonate, 1 % and 5 % 1 1 1 3 3 1 3
Ammonium chloride, 1 % 1 1 1 3 1 2 3
Ammonium chloride, 10 % 1 1 1 3 2 3 3
Ammonium chloride, 28 % 2 1 2 3 2 3 3
Ammonium chloride, 50 % 2 1 2 3 2 3 3
Ammonium dihydrogen orthophosphate (Ammonium phosphate), 5 % 1 1 1 3 3 2 3
Ammonium hydrogen carbonate (Ammonium bicarbonate), hot 1 1 1 3 2 3 3
Ammonium monophosphate 1 1 1 3 2 2 3
Ammonium oxalate, 5 % 1 1 1 3 3 2 3
Ammonium perchlorate, 10 %, boiling 1 1 1 3 3 2 3
Ammonium peroxodisulfate (Ammonium persulfate), 5 % 1 1 1 3 3 3 3
Ammonium solution (Ammonium hydroxide), all concentration 1 1 1 3 3 2 3
Ammonium sulfate 1 %, aerated or agitated 1 1 1 3 2 3 3
Ammonium sulfate 5 %, aerated and agitated 1 1 1 3 2 3 3
Ammonium sulfate 10 %, saturated 2 1 2 3 2 3 3
Ammonium sulfate, 70°F, boiling 1 1 1 3 3 3 3
Amyl acetate, concentrate 1 1 1 1 1 2 1
Amyl chloride 1 1 1 2 2 3 2
Aniline 3 % 1 1 1 3 2 2 3
Aniline concentrated crude 1 1 1 3 2 1 3
Argon (refrigerated liquid) 1 1 1 1 1 3 1
Barium carbonate 1 1 1 1 2 2 1
Barium chloride, 5 %, saturated 1 1 1 2 2 3 2
Barium hydroxide, aqueous solution, hot 1 1 1 1 2 2 1
Barium nitrate, aqueous solution, hot 1 1 1 1 2 2 1
Barium sulfate, (Barytes-blanc fixe) 1 1 1 1 2 3 1
Barium sulfide, saturated solution 1 1 1 3 3 3 3
Benzene (Benzol) 70°F or hot 1 1 1 1 2 2 1
Benzoic acid 1 1 1 1 3 1 1
Bitumen 1 1 1 1 1 1 1
Butane, -58°F 1 1 1 1 1 3 1
Butane, 70°F 1 1 1 1 1 2 1
Butyl acid, 5 % 1 1 1 2 2 3 2
Butyl aqueous solution, dilution of 0.13 oz/gal 1 1 1 3 2 3 3
Calcium carbonate 1 1 1 3 1 1 3
Calcium chlorate, dilute solution 1 1 1 3 2 2 3
Calcium chlorite, dilute or concentrate solution 2 1 2 2 3 3 2
Calcium hypochlorite, 2 % 2 1 2 2 3 3 2
Calcium hydroxide, 10 % to 20 % 1 1 1 1 1 3 1
Calcium sulfate, saturated 1 1 1 1 2 3 1
Carbonated water 1 1 1 2 3 3 2
Carbonic acid, saturated solution 1 1 1 1 3 3 3
Carbon dioxide dry 1 1 1 1 1 1 3
Carbon dioxide moist 1 1 1 3 1 2 3
Carbone disulfide (Carbon bisulfide) 1 1 1 2 2 2 1
Carbon tetrachloride CP 1 1 1 1 1 2 1
Carbon tetrachloride dry CP 1 1 1 1 2 2 1
Carbon tetrachloride commercial + 1 % water 3 3 3 2 2 3 2
Cellulose 1 1 1 3 1 3 3
Chloracetic acid 3 3 3 2 2 3 2
Chlorbenzol, concentrated, pure, dry 1 1 1 2 2 2 2
Chlorine gas, dry 3 3 3 2 2 2 2
Chlorine gas, moist 3 3 3 3 3 3 3
Chlorinated water, saturated 1 1 1 1 1 1 1
Chloroform 1 1 1 1 1 1 1
Chromium (VI) oxide (Chromic acid) 5 % CP 1 1 1 3 3 3 3
Chromium (VI) oxide (Chromic acid) 10 % 3 2 3 3 3 3 3
Chromium plating bath 1 1 1 3 3 2 3
1-chloro-2,4-dinitrobenzene (Dinitrochlorobenzene) melted and solidified 1 1 1 3 3 3 3
Chloroethane (Ethyl chloride) 1 1 1 2 1 2 2
Citric acid 5 %, still 1 1 1 1 2 3 2
Citric acid 15 %, still, 70°F 1 1 1 2 2 3 3
Citric acid 15 %, boiling 2 1 2 2 3 3 3
Copper (II) acetate, saturated solution 1 1 1 3 2 3 3
Copper (III) carbonate, saturated solution in 50 % NH4OH 1 1 1 3 3 3 3
Copper (II) cyanide, saturated solution 1 1 1 3 2 3 3
Copper (II) nitrate 1 % still, agitated and aerated 1 1 1 3 3 3 3
Copper (II) nitrate 5 % still, agitated and aerated 1 1 1 3 3 3 3
Copper (II) nitrate 50 % aqueous solution 1 1 1 3 3 3 3
Copper (II) sulfate 5 % agitated still or aerated 1 1 1 2 3 3 2
Copper (II) sulfate saturated solution 1 1 1 2 3 3 2
Creosote (coal tar) 1 1 1 1 2 2 1
Creosote oil 1 1 1 2 2 2 2
Cyanogen gas 1 1 1 3 3 3 3
Developing solutions 1 1 1 3 3 3 3
1,2-Dichloroethylene (Dichloroethane) dry 1 1 1 3 2 3 3
Diethyl ether (Ether) 1 1 1 1 2 2 1
Disodium tetraborate (Borax), 5 % 1 1 1 1 2 2 1
Distillery wort 1 1 1 3 3 3 3
Dyewood liquor 1 1 1 3 2 3 3
Ethanediol (Ethylene glycol) 1 1 1 1 1 2 1
Ethanol (Ethyl alcohol) 70°F and boiling 1 1 1 1 1 1 1
Ethyl acetate, concentrated solution 1 1 1 1 2 2 1
Ethylene chloride 1 1 1 2 1 2 2
Fluorine (gas) moist 3 3 3 3 3 3 3
Fluorosilicic (Hydrofluosilicid acid) 3 3 3 2 2 3 2
Sodium carbonate, molten 3 3 3 3 1 3 3
Sodium chloride 5 %, still 1 1 1 2 1 3 3
Sodium chloride 20 %, aerated 1 1 1 2 1 3 3
Sodium chloride saturated, 70°F 1 1 1 2 1 3 3
Sodium chloride saturated, boiling 2 1 2 2 1 3 3
Sodium cyanide 1 1 1 3 3 2 3
Sodium fluoride, 5 % solution 2 1 2 1 1 3 1
Sodium hydrogen carbonate (Sodium bisulfate) solution 1 1 1 2 2 3 3
Sodium hydrogen carbonate (Sodium bisulfate) saturated solution 3 3 3 2 2 3 3
Sodium hydroxide 1 1 1 2 1 2 3
Sodium hypochlorite 3 3 3 3 3 3 3
Sodium nitrate 1 1 1 1 2 2 1
Sodium perchlorate, 10 % 1 1 1 3 3 3 3
Sodium phosphate 1 1 1 2 2 2 2
Sodium sulfate 5 % 1 1 1 2 2 3 3
Naphtha crude 1 1 1 2 1 2 2
Naphtha pure 1 1 1 2 1 2 2
Naphthalene sulfonic acid 1 1 1 3 1 3 3
Nickel chloride solution 1 1 1 2 2 3 3
Nickel sulfate 1 1 1 1 1 3 3
Nitre cake 2 1 2 3 2 3 3
Nitric acid 5 %, 50 %, 70 %, boiling 1 1 1 3 3 3 3
Nitric acid 65 %, 70°F 1 1 1 3 3 3 3
Nitric acid 65 %, boiling 2 2 2 3 3 3 3
Nitric acid concentrated, 70°F 1 1 1 3 3 3 3
Nitric acid concentrated, boiling 3 3 3 3 3 3 3
Nitric acid fuming concentrated, 110°F 1 1 1 3 3 3 3
Nitric acid fuming concentrated, boiling 3 3 3 3 3 3 3
Nitrogen (refrigerated liquid) 1 1 1 1 1 3 1
Nitrous acid, 5 % 1 1 1 3 3 3 3
Oils, crude 1 1 1 2 1 3 2
Oils, vegetable, mineral 1 1 1 2 1 3 2
Oleic acid 1 1 1 2 2 2 2
Orthoboric acid (Boric acid) 5 % solution, 70°F 1 1 1 1 2 3 1
Orthoboric acid (Boric acid) 5 % solution, boiling 1 1 1 1 2 3 1
Orthoboric acid (Boric acid) saturated solution, 70°F 1 1 1 2 2 3 3
Orthoboric acid (Boric acid) saturated solution, boiling 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 1 %, 70°F 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 1 %, boiling 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 1 % to 3 %, 15 psi, 285°F 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 5 %, quiescent, or agitated 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 5 %, aerated 1 1 1 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 10 %, quiescent 3 1 3 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 10 %, agitated or aerated 3 2 3 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 10 % to 50 %, boiling 1 1 1 3 3 3 3
Orthophosphoric acid (Phosphoric acid) 80 %, 70°F 3 3 3 3 2 3 3
Orthophosphoric acid (Phosphoric acid) 80 %, 230°F 3 3 3 3 3 3 3
Orthophosphoric acid (Phosphoric acid) 85 %, boiling 3 3 3 3 3 3 3
Oxalic acid 5 %, 10 %, 70°F 1 1 1 2 2 3 3
Oxalic acid 10 %, boiling 3 3 3 2 2 3 3
Oxalic acid 25 %, 50 %, boiling 3 3 3 2 1 3 3
Oxygen (refrigerated liquid) 1 1 1 1 1 3 1
Paraffin, hot 1 1 1 1 1 2 1
Petrol 1 1 1 1 1 2 1
Petroleum ether 1 1 1 3 2 2 3
Phenol 1 1 1 3 2 2 1
Picric acid 1 1 1 3 3 3 3
Potassium bromide 2 1 2 2 2 3 2
Potassium carbonate 1 %, 70°F 1 1 1 2 1 2 2
Potassium carbonate 1 %, hot 1 1 1 3 1 2 3
Potassium chlorade saturated at 212°F 1 1 1 3 3 2 3
Potassium chloride 1 % quiescent 1 1 1 2 1 3 3
Potassium chloride 1 % agitated or aerated 1 1 1 2 1 3 3
Potassium chloride 5 % quiescent 1 1 1 2 1 3 3
Potassium chloride 5 % agitated or aerated 1 1 1 2 1 3 3
Potassium chloride 5 %, boiling 1 1 1 2 1 3 3
Potassium chromium sulfate 5 % 1 1 1 2 3 3 3
Potassium chromium dilution of 0.21 oz/gal 3 3 3 3 3 3 3
Potassium cyanide 1 1 1 3 2 2 3
Potassium dichromate (Potassium bichromate) 25 %, 70°F 1 1 1 3 2 3 3
Potassium dichromate (Potassium bichromate) 25 %, boiling 1 1 1 3 2 3 3
Potassium hexacyanoferrate (III) (Potassium ferrocyanide) 5 %, 25 %, 70°F 1 1 1 3 2 3 3
Potassium hexacyanoferrate (III) (Potassium ferrocyanide) 25 %, boiling 1 1 1 3 2 3 3
Potassium hexacyanoferrate (II) (Potassium ferrocyanide) 5 % 1 1 1 3 2 3 3
Potassium hydrogen oxalate (Potassium oxalate) 5 % 1 1 1 2 1 2 3
Potassium hydrogen oxalate (Potassium oxalate) 27 % 1 1 1 2 1 2 3
Potassium hydrogen oxalate (Potassium oxalate) 50 % 2 1 2 2 1 3 3
Potassium hypochlorite 2 2 2 3 3 3 3
Potassium nitrate 1 %, 5 % still or agitated 1 1 1 2 1 3 2
Potassium nitrate 1 %, 5 % aerated 1 1 1 2 1 3 2
Potassium nitrate 50 %, 70°F 1 1 1 2 1 3 2
Potassium nitrate 50 %, boiling 1 1 1 2 1 3 2
Potassium nitrate 50 %, molten 1 1 1 3 3 3 3
Potassium permanganate, 5 % 1 1 1 3 3 2 3
Potassium sulfate 1 %, 5 % or agitated 1 1 1 1 2 2 2
Potassium sulfate 1 %, 5 % aerated, 70°F 1 1 1 1 2 2 2
Potassium sulfate hot 1 1 1 1 2 3 2
Potassium sulfate (salt) 1 1 1 3 3 3 3
Propane -58°F 1 1 1 1 1 3 1
Propane 70°F 1 1 1 1 1 2 1
Pyrogallol (Pyrogallic acid) 1 1 1 3 3 2 3
Quinine bisulfate, dry 2 1 2 3 3 3 3
Quinine sulfate, dry 1 1 1 2 2 3 2
Resin 1 1 1 1 1 3 1
Sea water 3 2 3 2 2 3 2
Silver bromide 2 1 2 3 3 3 3
Silver nitrate 1 1 1 3 3 3 3
Soap 1 1 1 1 1 2 1
Sodium acetate, moist 1 1 1 3 2 3 3
Sodium carbonate 5 %, 150°F 1 1 1 2 1 2 2
Sodium carbonate 5 %, 50 %, boiling 1 1 1 2 1 2 2
Propyl Bromide 3 2 3 2 2 3 3
Diesel (fuel) 1 1 1 1 1 1 1
Natural gas 1 1 1 1 1 2 1
Sodium sulfate 10 % 1 1 1 2 2 3 3
Sodium thiosulfate saturated solution 1 1 1 3 1 3 3
Sodium thiosulfate acid fixing bath (hypo) 1 1 1 3 2 3 3
Sodium thiosulfate 25 % solution 1 1 1 3 2 3 3
Sodium thiosulfite (Sodium hyposulfite) 1 1 1 3 2 3 3
Steam 1 1 1 1 1 3 2
Stearic acid 1 1 1 2 2 3 3
Starch, aqueous solution 1 1 1 3 2 3 3
Strontium hydroxide 1 1 1 3 3 3 3
Strontium nitrate solution 1 1 1 3 2 3 3
Sulfur moist 2 1 2 3 2 3 3
Sulfur molten 1 1 1 3 1 3 3
Sulfur chloride, dry 3 3 3 1 2 3 1
Sulfur dioxide gas, moist 2 1 2 2 3 3 2
Sulfur dioxide gas, dry 1 1 1 1 2 3 1
Sulfur acid 5 %, 10 % 3 2 3 2 3 3 3
Sulfur acid 50 % 3 3 3 3 3 3 3
Sulfur acid concentrated, 70°F 1 1 1 2 3 3 3
Sulfur acid concentrated, boiling 3 3 3 2 3 3 3
Sulfurous acid saturated 3 2 3 2 3 3 3
Sulfurous acid saturated, 60 psi pressure 3 2 3 2 3 3 3
Sulfurous acid saturated, 120 psi pressure 3 2 3 2 3 3 3
Sulfurous acid saturated, 150 psi pressure 3 2 3 2 3 3 3
Tannic acid, 70°F 1 1 1 1 3 3 2
Tannic acid, 150°F 1 1 1 1 3 3 2
Tanning liquor 1 1 1 3 1 3 3
Tar 1 1 1 1 3 2 1
Tartaric acid 10 %, 70°F 1 1 1 1 2 3 2
Tartaric acid 10 %, 50 %, boiling 2 1 2 1 2 3 2
Tin (VI) chloride (Stannous chloride) (dilution of 0.16 oz/gal) 3 3 3 3 3 3 3
Tin (II) chloride (Stannous chloride) saturated 3 1 3 3 3 3 3
Trichloroacetic acid 3 3 3 2 3 3 3
Trichloroethylene, dry 1 1 1 1 1 3 1
Trichloroethylene, moist 3 3 3 2 3 3 2
Trichloroethylene, 3,3,5-Trihydroxybenzoic acid (Gallic acid) 5 % 1 1 1 3 2 3 3
Trichloroethylene, 3,3,5-Trihydroxybenzoic acid (Gallic acid) saturated 1 1 1 3 2 3 3
Varnish 1 1 1 1 1 2 1
Vegetable juices 1 1 1 2 2 2 3
Vinegar fumes 2 1 2 2 3 3 3
Vinegar, still, agitated or aerated 1 1 1 2 3 3 3
Water, potable 1 1 1 1 1 2 1
Whisky 1 1 1 1 1 3 2
Wine, all phases of processing and storing 1 1 1 3 2 3 3
Yeast 1 1 1 3 1 3 3
Zinc chloride 5 %, still 1 1 1 3 2 3 3
Zinc chloride 70°F, boiling 2 2 2 3 2 3 3
Zinc cyanide, moist 1 1 1 3 3 3 3
Zinc nitrate, solution 1 1 1 3 3 3 3
Zinc sulfate 4 % 1 1 1 2 2 3 3
Zinc sulfate 25 % 1 1 1 2 2 3 3
Zinc sulfate saturated 1 1 1 2 2 3 3