| | Excellent | Resistant at cryogenic and room temperatures |
| Alkali | Aluminum Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Ammonium Hydroxide | Poor | Reduced corrosion resistance due to soluble complex ion formation |
| Barium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Barium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Black Liquor, Sulfate Process | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Calcium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Lime | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Lime-Sulfur | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Magnesium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Potassium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Potassium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Sodium Bicarbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Sodium Carbonate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Sodium Hydroxide | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Sodium Phosphate | Excellent | |
| Sodium Silicate | Excellent | Corrosion increases at elevated temperatures and in presence of oxidizers such as chromates or hypochlorates |
| Sodium Sulfide | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Atmosphere | Atmosphere, Industrial | Excellent | Affected by pollutants and other environmental factors. Hydrogen sulfide causes rapid tarnishing. |
| Atmosphere, Marine | Excellent | Protective green basic copper chloride or carbonate patina. |
| Atmosphere, Rural | Excellent | Low corrosion rates, no localized attack |
| Chlor. organic | Carbon Tetrachloride, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Carbon Tetracholoride, Moist | Good | Corrosion rate increases at elevated temperatures |
| Chloroform, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Ethyl Chloride | Good | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Methyl Chloride, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Trichlorethylene, Dry | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Trichlorethylene, Moist | Good | Corrosion rate increases at elevated temperatures |
| Fatty acid | Oleic Acid | Excellent | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Palmitic Acid | Good | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Stearic Acid | Good | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Food/beverage | Beer | Excellent | May affect color or taste |
| Beet Sugar Syrups | Excellent | May affect color or taste |
| Cane Sugar Syrups | Excellent | May affect color or taste |
| Carbonated Beverages | Good | Acidity increases corrosion. May affect color or taste. |
| Carbonated Water | Good | Acidity increases corrosion. May affect color or taste. |
| Cider | Excellent | May affect color or taste |
| Coffee | Excellent | May affect color or taste |
| Corn Oil | Excellent | May affect color or taste |
| Cottonseed Oil | Excellent | May affect color or taste |
| Fruit Juices | Good | Acidity increases corrosion. May affect color or taste. |
| Gelatine | Excellent | May affect color or taste |
| Milk | Excellent | May affect color or taste |
| Sugar Solutions | Excellent | May affect color or taste |
| Vinegar | Good | Acidity increases corrosion. May affect color or taste. |
| Gas | Ammonia, Absolutely Dry | Excellent | Rapid corrosion increases with traces of moisture |
| Ammonia, Moist | Poor | More corrosion resistant in dry gas |
| Carbon Dioxide, Dry | Excellent | Corrosion increases with trace of moisture |
| Carbon Dioxide, Moist | Good | More corrosion resistant in dry gas |
| Hydrogen | Excellent | Copper and copper alloys containing copper oxide susceptible to attack |
| Oxygen | Excellent | Scaling at elevated temperatures |
| Halogen gas | Bromine, Dry | Excellent | Rapid corrosion increases with traces of moisture |
| Bromine, Moist | Good | More corrosion resistant in dry gas |
| Chlorine, Dry | Excellent | Rapid corrosion increases with traces of moisture |
| Chlorine, Moist | Fair | More corrosion resistant in dry gas |
| Hydrocarbon | Acetylene | Poor | Forms explosive compound in presence of moisture |
| Asphalt | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Benzine | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Benzol | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Butane | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Creosote | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Crude Oil | Good | Careful consideration must be given to specific contaminants when selecting materials for this complex environment |
| Freon | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Fuel Oil | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Gasoline | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Hydrocarbons, Pure | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Kerosene | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Natural Gas | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Paraffin | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Propane | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Tar | Not Recommended | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Turpentine | Excellent | Contaminants such as water, sulfides, acids and various organic compounds can increase corrosion significantly |
| Inorg. acid non-ox. | Boric Acid | Excellent | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
| Carbolic Acid | Good | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
| Hydrobromic Acid | Fair | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
| Hydrochloric Acid | Fair | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions |
| Hydrocyanic Acid | Poor | Reduced corrosion resistance due to soluble complex ion formation |
| Hydrofluoric Acid | Fair | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions |
| Hydrofluosilicic Acid | Good | Generally limted to applications in cold, oxidizer free, dilute (<1%) or concentrated solutions |
| Phosphoric Acid | Good | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
| Sulfuric Acid | Good | Not suitable for hot concentrated solutions |
| Inorg. acid ox. | Chromic Acid | Poor | Severe oxidizing environment. |
| Nitric Acid | Poor | Severe oxidizing environment. |
| Sulfurous Acid | Fair | Increased corrosion at elevated temperatures and with oxidizers including oxygen (air), dichromates, permanganates and sulfates |
| Liquid metal | Mercury | Poor | Severe liquid metal embrittlement |
| Miscellaneous | Glue | Excellent | Low corrosion rates, no localized attack |
| Linseed Oil | Good | Low corrosion rates, no localized attack |
| Rosin | Excellent | Low corrosion rates, no localized attack |
| Sewage | Excellent | Corrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. |
| Soap Solutions | Excellent | Corrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. |
| Varnish | Excellent | Low corrosion rates, no localized attack |
| Neutral/acid salt | Alum | Good | |
| Alumina | Excellent | Low corrosion rates, no localized attack |
| Aluminum Chloride | Good | Strong agitation and aeration increases corrosion |
| Aluminum Sulfate | Good | Suitable for neutral or alkaline conditions |
| Ammonium Chloride | Poor | Reduced corrosion resistance due to soluble complex ion formation |
| Ammonium Sulfate | Fair | Reduced corrosion resistance due to soluble complex ion formation |
| Barium Chloride | Good | Strong agitation and aeration increases corrosion |
| Barium Sulfate | Excellent | Low corrosion rates, no localized attack |
| Barium Sulfide | Fair | High zinc content alloys preferred |
| Calcium Chloride | Excellent | Hydrolylsis produces weak acidic condition |
| Carbon Disulfide | Good | High zinc content alloys preferred |
| Magnesium Chloride | Good | Hydrolylsis produces weak acidic condition |
| Magnesium Sulfate | Excellent | Low corrosion rates, no localized attack |
| Potassium Chloride | Excellent | Hydrolylsis produces weak acidic condition |
| Potassium Cyanide | Poor | Reduced corrosion resistance due to soluble complex ion formation |
| Potassium Dichromate Acid | Poor | Highly oxidizing under acidic conditions |
| Potassium Sulfate | Excellent | Low corrosion rates, no localized attack |
| Sodium Bisulfate | Excellent | Suitable for neutral or alkaline conditions |
| Sodium Chloride | Excellent | Hydrolylsis produces weak acidic condition |
| Sodium Cyanide | Poor | Low corrosion rates, no localized attack |
| Sodium Dichromate, Acid | Poor | Highly oxidizing under acidic conditions |
| Sodium Sulfate | Excellent | Low corrosion rates, no localized attack |
| Sodium Sulfite | Good | Suitable for neutral or alkaline conditions |
| Sodium Thiosulfate | Fair | High zinc content alloys preferred |
| Zinc Chloride | Fair | Hydrolylsis produces weak acidic condition |
| Zinc Sulfate | Good | Suitable for neutral or alkaline conditions |
| Org. solvent | Acetone | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Alcohols | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Amyl Acetate | Excellent | |
| Amyl Alcohol | Excellent | |
| Butyl Alcohol | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Ethers | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Ethyl Acetate | Excellent | |
| Ethyl Alcohol | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Lacquer Solvents | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Methyl Alcohol | Excellent | |
| Toluene | Excellent | Resistant up to 200F unless contaminated by water, acids, alkalies or salts |
| Organic acid | Acetic Acid | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Acetic Anhydride | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Benzoic Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Butyric Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Chloracetic Acid | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Citric Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Formic Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Lactic Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Oxalic Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Tannic Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Tartaric Acid | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Trichloracetic Acid | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Organic comp. | Aniline | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Aniline Dyes | Fair | Corrosion rate increases at elevated temperatures or with traces of moisture |
| Castor Oil | Excellent | Low corrosion rates, no localized attack |
| Ethylene Glycol | Excellent | Low corrosion rates, no localized attack |
| Formaldehyde | Excellent | Low corrosion rates, no localized attack |
| Furfural | Excellent | Low corrosion rates, no localized attack |
| Glucose | Excellent | Low corrosion rates, no localized attack |
| Glycerine | Excellent | Low corrosion rates, no localized attack |
| Lacquers | Excellent | Low corrosion rates, no localized attack |
| Oxidizing salt | Ammonium Nitrate | Poor | Reduced corrosion resistance due to soluble complex ion formation |
| Bleaching Powder, Wet | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Borax | Excellent | Low corrosion rates, no localized attack |
| Bordeaux Mixture | Excellent | Low corrosion rates, no localized attack |
| Calcium Bisulfite | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Calcium Hypochlorite | Good | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Copper Chloride | Fair | Severe oxidizing environment. |
| Copper Nitrate | Fair | Oxidizing environment |
| Copper Sulfate | Good | Hydrolylsis produces weak acidic condition |
| Ferric Chloride | Poor | Severe oxidizing environment. |
| Ferric Sulfate | Poor | Severe oxidizing environment. |
| Ferrous Chloride | Good | Strong agitation and aeration increases corrosion |
| Ferrous Sulfate | Good | Hydrolylsis produces weak acidic condition |
| Hydrogen Peroxide | Good | Oxidizing environment |
| Mercury Salts | Poor | Noble metal salt, plates on copper surface |
| Potassium Chromate | Excellent | Suitable for neutral or alkaline conditions |
| Silver Salts | Poor | Noble metal salt, plates on copper surface |
| Sodium Bisulfite | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Sodium Chromate | Excellent | Suitable for neutral or alkaline conditions |
| Sodium Hypochlorite | Fair | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Sodium Nitrate | Excellent | Useful corrosion resistance with moderate oxidizers levels and <5% chlorides. Optimum resistance at room temperature and above boiling point. |
| Sodium Peroxide | Good | Low corrosion rates, no localized attack |
| Sulfur comp. | Hydrogen Sulfide, Dry | Excellent | Rapid corrosion increases with traces of moisture |
| Hydrogen Sulfide, Moist | Poor | High zinc content alloys preferred |
| Sulfur Chloride, Dry | Excellent | Rapid corrosion increases with traces of moisture |
| Sulfur Dioxide, Dry | Excellent | Scaling at elevated temperatures |
| Sulfur Dioxide, Moist | Fair | Mixed oxide and sulfide scale forms |
| Sulfur Trioxide, Dry | Excellent | Corrosion increases with trace of moisture |
| Sulfur, Dry | Good | High zinc content alloys preferred |
| Sulfur, Molten | Poor | Forms non-protective copper sulfide |
| Water | Brines | Excellent | Resistant to most oxidizers. Refer to specific salt solution ratings. |
| Mine Water | Fair | Acidic waters containing oxidizers are highly corrosive. |
| Sea Water | Excellent | Corrosion affected by salt concentration, temperature, velocity, dissolved oxygen content and pollutants. |
| Steam | Excellent | Resistant to pure steam. Carbon dixide, dissolved oxygen can increase corrosion. Resistant to ammonia attack. |
| Water, Potable | Excellent | Corrosion affected by water chemistry (mineral content, acidity) system design and fabrication. Free carbon dioxide can cause pitting in cold water. Pitting in hot water caused by cathodic deposits. |
