Corrosion Resistance Data
Consult SMITH Sales Engineering Department when Extraordinary Applications are Encountered
 

TYPICAL CORROSION RESISTANCE OF STAINLESS STEELS TO VARIOUS MEDIA
CODES: a–Unaffected, b–Slightly attacked. c–Attacked. m–Complete details concerning the conditions of service must be evaluated.

Type Numbers

Type Numbers

 
MEDIUM CF8 (304) CF8M (316)   MEDIUM CF8 (304) CF8M (316)
ORGANIC SUBSTANCES            
Acetone .................................................. a a   Ink ........................................................... m m
Benzol .................................................... c c   Mustard .................................................... b a
Carbon tetrachloride .................................. a a   Paregoric cmpd .......................................... a a
Ethyl alcohol............................................. a a   Quinine bisulfate ......................................... b a
Ethyl chloride ........................................... a a   Quinine sulfate ........................................... a a
Food pastes ............................................. a a   Vinegar at 70° F ......................................... m m
Fruit juices ............................................... a a        
Acids            
Acetic ..................................................... m m   Oxalic ...................................................... m m
Benzoic .................................................... a a   Phosphoric ................................................ a a
Boric ....................................................... a a   Phosphoric (10%) ....................................... a a
Carbolic ................................................... a a   Picric (conc.) ............................................. a a
Chromic (50%) .......................................... c c   Pyroligneus (conc.) ..................................... a a
Citric ....................................................... a a   Stearic (conc.) ....................................... a a
Formic ..................................................... c m   Succinic (molten) .................................... c -
Hydrobromic .............................................. c c   Sulfuric (conc.) .......................................... a a
Hydrocyanic .............................................. a a   Sulfuric (dil.) .............................................. m m
Hydrochloric .............................................. c c   Sulfuric 15% (plus 2% potassium dichromate).. a a
Hydrofluoric .............................................. c c   Sulfurous (conc.) ........................................ b a
Lactic ...................................................... a a   Tannic (conc.) ........................................... a a
Nitric (conc.) ............................................ a a   Tartaric (conc.) ...................................... a a
Nitric (conc. plus 2% HCI) ........................... a -   Trichloracetic acid (10%) ............................. a a
Nitrous (conc.) .......................................... a a   Uric (conc.)................................................ a a
MEDIUM CF8 (304) CF8M (316)   MEDIUM CF8 (304) CF8M (316)
Salts            
Aluminum chloride ...................................... c c   Potassium cyanide ...................................... a a
Aluminum fluoride ....................................... c b   Potassium dichromate .................................. a a
Aluminum sulfate ........................................ a a   Potassium ferricyanide ................................. a a
Ammonium alum ......................................... a a   Potassium ferricyanide (boiling) ................... a a
Ammonium bromide...................................... c c   Potassium hypochlorite ................................ c m
Ammonium chloride ..................................... b a   Potassium iodide.......................................... a a
Ammonium hydroxide .................................. a a   Potassium iodide (sat. plus 0.1% sodium carbonate evaporated to dryness).................. a a
Ammonium nitrate ...................................... a a   Potassium hydrate ...................................... a a
Ammonium sulfate ...................................... a a   Potassium nitrate ........................................ a a
Barium chloride .......................................... a a   Potassium oxalate ....................................... a a
Bleaching powder ....................................... c a   Potassium permanganate .............................. a a
Calcium chloride ......................................... c a   Potassium sulfate ....................................... a a
Calcium hydroxide or oxide ........................... a a   Silver nitrate .............................................. a a
Copper chloride.......................................... c c   Silver cyanide ............................................ a a
Copper cyanide ......................................... a a   Sodium bicarbonate ..................................... a a
Copper nitrate ........................................... a a   Sodium borate ............................................ a a
Copper sulfate (plus 2% sulfuric acid) ............ a a   Sodium bromide .......................................... a a
Copper sulfate ........................................... a a   Sodium chloride (2% aerated) ....................... a a
Creosote .................................................. c a   Sodium citrate ......................................... a a
Creosote (plus 3% salt) .............................. c c   Sodium fluoride ........................................... b -
Hydrogen peroxide ..................................... b a   Sodium hydroxide ........................................ a a
Magnesium carbonate ................................. a a   Sodium nitrate ........................................... a a
Magnesium chloride .................................... m m   Sodium peroxide (212° F) ............................. a a
Magnesium sulfate ..................................... a a   Stannic chloride ....................................... b -
Magnesium hydroxide .................................. a a   Stannous chloride ....................................... a a
Magnesium nitrate ...................................... a a   Sulfar (molten) (500° F) ............................... b -
Phosphorous trichloride ............................... a a   Sulfar chloride ............................................ a a
Potassium bromide ..................................... a a   Titanium tetrachloride .................................. a a
Potassium carbonate .................................. a a   Zinc chloride .............................................. c b
Potassium chloride ..................................... m m   Zinc sulfate ............................................... a a
Potassium chlorate ..................................... a a        
MEDIUM CF8 (304) CF8M (316)   MEDIUM CF8 (304) CF8M (316)
Miscellaneous            
Ammonia .................................................. a a   Lysol ........................................................ m m
Baking oven gases ..................................... a a   Mercury .................................................... a a
Bromine .................................................... c c   Sauerkraut brine ......................................... c a
Carbonated beverages ................................ a a   Sea water ................................................. m m
Chlorine (wet and dry) ................................ c c   Sulfur dioxide ............................................. b b
Glycerin ................................................... a a   Vegetable juices ......................................... a a
Hydrogen sulfide (400° F) ............................ b a   X-ray developing solution ............................. b a
Iodine ...................................................... c a   Zinc (molten) ............................................. c c
Lead (molten) ........................................... c c        
 

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