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Alloy Specifications, Chemistries, and Technical Data

C95800 ALUMINUM BRONZE
Aliases
CDA Number C95800
Common Name Nickel Aluminum Bronze
Alias C958
Alias 958 Nickel Aluminum Bronze
Alias NAB
Nearest Applicable Casting Standards
ASTM (B Series) B148
SAE (J Series) J462
Federal (QQ-C- Series) 390
Military (Mil-C- Series) 22229
Specification Composition
Minimum Maximum
Copper (Cu) 79
Lead (Pb) 0.03
Iron (Fe) 3.5 4.5
Nickel (Ni) 4 5
Silicon (Si) 0.1
Aluminum (Al) 8.5 9.5
Manganese (Mn) 0.8 1.5
Copper + Sum of Named Elements 99.5
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Tensile Strength (ksi) F 85
Yield Strength (.5% extension under load) (ksi) F 35
Elongation (2 inch gauge length) (%) F 15
Typical Properties
Heat Treat State Typical
Reduction of Area (%) 20
Proportional Limit (ksi) 23
Modulus of Elasticity (ksi) 19000
Hardness (Brinell) (HB @ 3000kg) 160
Machinability (% of free cutting brass) 50
Fatigue Strength (10^8 cycles) (ksi) 32
Impact Strength (Charpy) (ft-lb) 15
Impact Strength (Izod) (ft-lb) 20
Shear Strength (ksi) 58
Compressive Strength (0.001 in. set/in.) (ksi) 35
Compressive Strength (0.010 in. set/in.) (ksi) 48
Compressive Strength (0.100 in. set/in.) (ksi) 100
Melting Range (Liquidus-Solidus)(F) 1910-1940
Coefficient of Thermal Expansion (per F @ 68-400F) 0.0000090
Thermal Conductivity (Btu/sq.ft/ft./hr/F @ 68F) 20.8
Specific Heat (Btu/lb/F @ 68F) 0.105
Electrical Conductivity (% IACS @ 68F) 7.1
Density (lb/cu.in. @ 68F) 0.276
Pouring Temperature (Light Castings) (F) 2250-2350
Pouring Temperature (Heavy Castings) (F) 2150-2250
Patternmakers Shrinkage (in/ft) 3/16
Drossing High
Gassing Medium
Fluidity Medium
Shrinkage High
Casting Yield Low
Comments
Wear Resistance: Outstanding, C95800 the best of all bronzes.
Corrosion Resistance*
*While corrosion reistance is listed for food products, certain alloys may be unacceptable for other reasons.
Acetate Solvents Excellent Resistance
Acetic Acid, 20 % Excellent Resistance
Acetic Acid, 50% Excellent Resistance
Acetic Acid, Glacial Excellent Resistance
Acetone Excellent Resistance
Acetylene Explosive!
Alcohols Excellent Resistance
Aluminum Chloride Acceptable
Aluminum Sulfate Excellent Resistance
Ammonia, Moist Gas Not Recommended
Ammonia,Moisture-Free Excellent Resistance
Ammonium Chloride Not Recommended
Ammonium Hydroxide Not Recommended
Ammonium Nitrate Not Recommended
Ammonium Sulfate Excellent Resistance
Aniline and Aniline Dyes Acceptable
Asphalt Excellent Resistance
Barium Chloride Excellent Resistance
Barium Sulfide Not Recommended
Beer Excellent Resistance
Beet Sugar Syrup Excellent Resistance
Benzine Excellent Resistance
Benzol Excellent Resistance
Boric Acid Excellent Resistance
Butane Excellent Resistance
Calcium Bisulfite Excellent Resistance
Calcium Chloride (acid) Excellent Resistance
Calcium Chloride (alkaline) Excellent Resistance
Calcium Hydroxide Acceptable
Calcium Hypochlorite Acceptable
Cane Sugar Syrups Excellent Resistance
Carbon Dioxide, Dry Excellent Resistance
Carbon Dioxide, Moist Excellent Resistance
Carbon Tetrachloride, Dry Excellent Resistance
Carbon Tetrachloride, Moist Acceptable
Carbonated Beverages Excellent Resistance
Chlorine, Dry Excellent Resistance
Chlorine,Moist Not Recommended
Chromic Acid Not Recommended
Citric Acid Excellent Resistance
Copper Sulfate Acceptable
Cottonseed Oil Excellent Resistance
Creosote Excellent Resistance
Ethers Excellent Resistance
Ethylene Glycol Excellent Resistance
Ferric Chloride,Sulfate Not Recommended
Ferrous Chloride, Sullate Not Recommended
Formaldehyde Excellent Resistance
Formic Acid Excellent Resistance
Freon Excellent Resistance
Fuel Oil Excellent Resistance
Furfural Excellent Resistance
Gasoline Excellent Resistance
Gelatin Excellent Resistance
Glucose Excellent Resistance
Glue Excellent Resistance
Glycerine Excellent Resistance
Hydrochloric or Muriatic Acid Acceptable
Hydrofluoric Acid Excellent Resistance
Hydrofluosilicic Acid Acceptable
Hydrogen Excellent Resistance
Hydrogen Peroxide Not Recommended
Hydrogen Sulfide, Moist Acceptable
Hydrogen Sulfide,Dry Acceptable
Lacquer Thinners Excellent Resistance
Lacquers Excellent Resistance
Lactic Acid Excellent Resistance
Linseed Oil Excellent Resistance
Liquor, White Excellent Resistance
Liquor,Black Acceptable
Liquor,Green Acceptable
Magnesium Chloride Excellent Resistance
Magnesium Hydroxide Excellent Resistance
Magnesium Sullate Excellent Resistance
Mercury, Mercury Salts Not Recommended
Milk Excellent Resistance
Molasses Excellent Resistance
Natural Gas Excellent Resistance
Nickel Chloride Acceptable
Nickel Sulfate Excellent Resistance
Nitric Acid Not Recommended
Oleic Acid Excellent Resistance
Oxalic Acid Excellent Resistance
Phosphoric Acid Excellent Resistance
Picric Acid Not Recommended
Potassium Chloride Excellent Resistance
Potassium Cyanide Not Recommended
Potassium Hydroxide Excellent Resistance
Potassium Sulfate Excellent Resistance
Propane Gas Excellent Resistance
Sea Water Excellent Resistance
Soap Solutions Excellent Resistance
Sodium Bicarbonate Excellent Resistance
Sodium Bisulfate Excellent Resistance
Sodium Carbonate Excellent Resistance
Sodium Chloride Excellent Resistance
Sodium Cyanide Acceptable
Sodium Hydroxide Excellent Resistance
Sodium Hypochlorite Not Recommended
Sodium Peroxide Acceptable
Sodium Phosphate Excellent Resistance
Sodium Sulfate, Silicate Excellent Resistance
Sodium Sulfite, Thiosulfate Acceptable
Soduim Nitrate Excellent Resistance
Stearic Acid Excellent Resistance
Sulfur Chloride Not Recommended
Sulfur Dioxide, Dry Excellent Resistance
Sulfur Dioxide, Moist Excellent Resistance
Sulfur Trioxide, Dry Excellent Resistance
Sulfur, Solid Excellent Resistance
Sulfuric Acid, 78% or Less Excellent Resistance
Sulfuric Acid, 78% to 90% Acceptable
Sulfuric Acid, 90% to 95% Acceptable
Sulfuric Acid, Fuming Excellent Resistance
Tannic Acid Excellent Resistance
Tartaric Acid Excellent Resistance
Toluene Acceptable
Trichlorethylene, Dry Excellent Resistance
Trichlorethylene, Moist Excellent Resistance
Turpentine Excellent Resistance
Varnish Excellent Resistance
Vinegar Acceptable
Water, Acid Mine Not Recommended
Water, Condensate Excellent Resistance
Water, Potable Excellent Resistance
Whiskey Excellent Resistance
Zinc Chloride Acceptable
Zinc Sulfate Acceptable
Applications
Agitated Acidic Saltwater Environments
Bearings
Bushes
Centrifugal Castings
Channel Covers
Compressed Natural Gas
Continuous Cast Bar & Shapes
Corrosion Resistant Structural Parts
Deep Drawing Dies
Desalination Hardware
Die-cast Components
Gear Blanks
Gear Selector Forks
Gears
Glass Molds
Heat Exchanger Parts
Impellers Bearings
Liquefied Petroleum
Marine Equipment
Non-spark Tools
Non-sparking Tools
Nuts
Pickling Equipment
Pipe Fittings
Propeller Brackets
Propellers
Pumps
Rolling Mill Equipment
Rolling Mill Slippers
Rudder Brackets
Rudders
Shafts
Synchronizing Rings
Tubesheets
Valve Bodies
Valve Guides And Seats In Aircraft Engines
Valves
Water Cooled Compressors
Wear Parts
Welding Jaws
Worms
Great Castings
         St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com
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1. St. Paul Foundry is providing this information on metal characteristics for informational purposes only. Before making a final decision on alloy selection consider the following and all other appropriate design and specification principles. Please note that this is not an exhaustive list.

2. Consult the appropriate specification from an accredited specifying body (ASTM, SAE, Federal or Military) to determine current minimum values of this alloy.

3. Use appropriate design safety factors.

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