Continuous-cast corrosion ratings

Reference guide

Corrosion ratings of Continuous-Cast Copper alloys in Various Media

Ratings: A = Recommended B = Acceptable C = Not recommended

Corrosive medium Copper Tin bronze Leaded tin bronze High-lead tin bronze Leaded red brass Leaded semi-red brass Leaded yellow brass Leaded high-strength yellow brass High-strength yellow brass Aluminum bronze Leaded nickel brass Leaded nickel bronze Silicon bronze Silicon brass
Acetate solvents B A A A A A B A A A A A A B
Acetic acid
20% A C B C B C C C C A C A A B
50% A C B C B C C C C A C B A B
Glacial A A A C A C C C C A B B A A
Acetone A A A A A A A A A A A A A A
Acetylene1 C C C C C C C C C C C C C C
Alcohols2 A A A A A A A A A A A A A A
Aluminum chloride C C C C C C C C C B C C C C
Aluminum sulfate B B B B B C C C C A C C A A
Ammonia, moist gas C C C C C C C C C C C C C C
Ammonia, moisture-free A A A A A A A A A A A A A A
Ammonium chloride C C C C C C C C C C C C C C
Ammonium hydroxide C C C C C C C C C C C C C C
Ammonium nitrate C C C C C C C C C C C C C C
Ammonium sulfate B B B B B C C C C A C C A A
Aniline and aniline dyes C C C C C C C C C B C C C C
Asphalt A A A A A A A A A A A A A A
Barium chloride A A A A A C C C C A A A A C
Barium sulfide C C C C C C C C B C C C C C
Beer2 A A B B B C C C A A C A A B
Beet sugar syrup A A B B B A A A B A A A B B
Benzine A A A A A A A A A A A A A A
Benzol A A A A A A A A A A A A A A
Boric acid A A A A A A B A A A A A A A
Butane A A A A A A A A A A A A A A
Calcium bisfulfite A A B B B C C C C A B A A B
Calcium chloride, acid B B B B B B C C C A C C A C
Calcium chloride, alkaline C C C C C C C C C A C A C B
Calcium hydroxide C C C C C C C C C B C C C C
Calcium hypochlorite C C B B B C C C C B C C C C
Cane sugar syrups A A B A B A A A A A A A A B
Carbonated beverages A C C C C C C C C A C C A C
Carbon dioxide, dry A A A A A A A A A A A A A A
Carbon dioxide, moist2 B B B C B C C C C A C A A B
Carbon tetrachloride, dry A A A A A A A A A A A A A A
Carbon tetrachloride, moist B B B B B B B B B B B A A A
Chlorine, dry A A A A A A A A A A A A A A
Chlorine, moist C C B B B C C C C C C C C C
Chromic, acid C C C C C C C C C C C C C C
Citruc, acid A A A A A A A A A A A A A A
Copper sulfate B A A A A C C C C B B B A A
Cottonseed oil2 A A A A A A A A A A A A A A
Creosole B B B B B C C C C A B B B B
Ethers A A A A A A A A A A A A A A
Ethylene glycol A A A A A A A A A A A A A A
Ferric chloride, sulfate C C C C C C C C C C C C C C
Ferrous chloride, sulfate C C C C C C C C C C C C C C
Formaldehyde A A A A A A A A A A A A A A
Formic acid A A A A A B B B B A B B B C
Freon A A A A A A A A A A A A A B
Fuel oil A A A A A A A A A A A A A A
Furfural A A A A A A A A A A A A A A
Gasoline A A A A A A A A A A A A A A
Gelatin2 A A A A A A A A A A A A A A
Glucose A A A A A A A A A A A A A A
Glue A A A A A A A A A A A A A A
Glycerin A A A A A A A A A A A A A A
Hydrochloric or muriatic acid C C C C C C C C C B C C C C
Hydrofluoric acid B B B B B B B B B B B B B B
Hydrofluosilicic acid B B B B B C C C C B C C B C
Hydrogen A A A A A A A A A A A A A A
Hydrogen peroxide C C C C C C C C C C C C C C
Hydrogen sulfide, dry C C C C C C C C C B C C B C
Hydrogen sulfide, moist C C C C C C C C C B C C C C
Lacquers A A A A A A A A A A A A A A
Lacquer thinners A A A A A A A A A A A A A A
Lactic acid A A A A A C C C C A C C A C
Linseed oil A A A A A A A A A A A A A A
Liquors
Black B B B B B C C C C B C C B B
Green C C C C C C C C C B C C C B
White C C C C C C C C C A C C C B
Magnesium chloride A A A A A C C C C A C C A B
Magnesium hydroxide B B B B B B B B B A B B B B
Magnesium sulfate A A A A B C C C C A C B A B
Mercury and mercury salts C C C C C C C C C C C C C C
Milk2 A A A A A A A A A A A A A A
Mosasses2 A A A A A A A A A A A A A A
Natural gas A A A A A A A A A A A A A A
Nickel chloride A A A A A C C C C B C C A C
Nickel sulfate A A A A A C C C C A C C A C
Nitric acid C C C C C C C C C C C C C C
Oleic acid A A B B B C C C C A C A A B
Oxalic acid A A B B B C C C C A C A A B
Phosphoric acid A A A A A C C C C A C A A A
Picric acid C C C C C C C C C C C C C C
Potassium chloride A A A A A C C C C A C C A C
Potassium cyanide C C C C C C C C C C C C C C
Potassium hydroxide C C C C C C C C C C C C C C
Potassium sulfate A A A A A C C C C A C C A C
Propane gas A A A A A A A A A A A A A A
Sea water A A A A A C C C C A C C B B
Soap solutions A A A A B C C C C A C C A C
Sodium bicarbonate A A A A A A A A A A A A A B
Sodium bisulfate C C C C C C C C C A C C C C
Sodium carbonate C A A A A C C C C A C C C A
Sodium chloride A A A A A B C C C A C C A C
Sodium cyanide C C C C C C C C C B C C C C
Sodium hydroxide C C C C C C C C C A C C C C
Sodium hypochlorite C C C C C C C C C C C C C C
Sodium nitrate B B B B B B B B B A B B A A
Sodium peroxide B B B B B B B B B B B B B B
Sodium phosphate A A A A A A A A A A A A A A
Sodium sulfate, silicate A A B B B B C C C A C C A B
Sodium sulfide, thiosulfate C C C C C C C C C C C C C C
Stearic acid A A A A A A A A A A A A A A
Sulfur, solid C C C C C C C C C A C C C C
Sulfur chloride C C C C C C C C C C C C C C
Sulfur dioxide, dry A A A A A A A A A A A A A A
Sulfur dioxide, moist A A A B B C C C C A C C A B
Sulfur trioxide, dry A A A A A A A A A A A A A A
Sulfuric acid
78% or less B B B B B C C C C A C C B B
78% to 90% C C C C C C C C C B C C C C
90% to 95% C C C C C C C C C B C C C C
Fuming C C C C C C C C C A C C C C
Tannic acid A A A A A A A A A A A A A A
Tartaric acid B A A A A A A A A A A A A A
Toluene B B A A A B B B B B B B B A
Trichlorethylene, dry A A A A A A A A A A A A A A
Trichlorethylene, moist A A A A A A A A A A A A A A
Turpentine A A A A A A A A A A A A A A
Varnish A A A A A A A A A A A A A A
Vinegar A A B B B C C C C B C C A B
Water, acid mine C C C C C C C C C C C C C C
Water, condensate A A A A A A A A A A A A A A
Water, potable A A A A A A B B B A A A A A
Whiskey2 A A C C C C C C C A C C A C
Zinc chloride C C C C C C C C C B C C B C
Zinc sulfate A A A A A C C C C B C A A C
1Acetylene forms an explosive compound with copper when moist or when certain impurities are present and the gas is under pressure. alloys containing less than 65% Cu are satisfactory under this use. When gas is not under pressure other copper alloys are satisfactory.
2Copper and copper alloys resist corrosion by most food products. Traces may be dissolved and allect taste or color. In such cases, copper metals are often tin coated.