Alloy Guide Sheet Terms of Use

Use Good Design Principles

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.

4. Use Failure Modes and Effects Analysis to help identify possible weaknesses in designs and specifications.

5. Use computerized stress analysis tools.

6. Use appropriate certification requirements for your casting suppliers. These may include test bars, chemical certifications, radiography, dye penetrant or other non-destructive testing methods.

7. Test your design to failure in a controlled environment. Then test it to failure in a simulation of its end use.

8. You and you alone are responsible for the suitability of your design and the materials that you select.

Disclaimer

WHILE EVERY EFFORT IS MADE BY ST. PAUL FOUNDRY (SPF) TO ENSURE ACCURACY, THIS INFORMATION IS PROVIDED FOR GENERAL INFORMATION PURPOSES ONLY AND NOT FOR ANY OTHER PURPOSE. BY ACCESSING THIS INFORMATION, YOU AGREE THAT IT MAY BE REVISED AT ANY TIME, IT IS PROVIDED “AS IS” AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, THAT NO WARRANTY OR REPRESENTATION IS MADE ABOUT ITS CONTENT OR SUITABILITY FOR ANY PURPOSE, AND THAT SPF EXPRESSLY DISCLAIMS WARRANTIES OF MERCHANTABILITY AND FITNESS. YOU ASSUME ALL RISK AND LIABILITY FOR ANY LOSS, DAMAGE, CLAIM, OR EXPENSE RESULTING FROM YOUR REVIEW, USE, OR POSSESSION OF THIS INFORMATION.



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Aliases
CDA NUMBER C86400
Common Name 420
Alias C864
Alias 864
Alias Free Machining Mn Bronze
Alias 60,000 Tensile
Nearest Applicable Casting Standards
SAE (J Series) B584
Military (Mil-C- Series) 390
Specification Composition
Minimum Maximum
Copper (Cu) 56 62
Tin (Sn) 0.5 1.5
Lead (Pb) 0.5 1.5
Zinc (Zn) 34 42
Iron (Fe) 0.4 2
Nickel (Ni) 1
Aluminum (Al) 0.5 1.5
Manganese (Mn) 0.1 1.5
Copper + Sum of Named Elements 99
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Tensile Strength (ksi) 60
Yield Strength (.5% extension under load) (ksi) 20
Elongation (2 inch gauge length) (%) 15
Typical Properties
Heat Treat State Typical
Reduction of Area (%) 20
Proportional Limit (ksi) 14
Modulus of Elasticity (ksi) 14000
Hardness (Brinell) (HB @ 3000kg) 105
Machinability (% of free cutting brass) 62
Impact Strength (Charpy) (ft-lb) 25
Impact Strength (Izod) (ft-lb) 30
Compressive Strength (0.001 in. set/in.) (ksi) 23
Compressive Strength (0.100 in. set/in.) (ksi) 87
Melting Range (Liquidus-Solidus)(F) 1580-1616
Coefficient of Thermal Expansion (per F @ 68-400F) 0.000011
Thermal Conductivity (Btu/sq.ft/ft./hr/F @ 68F) 51
Specific Heat (Btu/lb/F @ 68F) 0.09
Electrical Conductivity (% IACS @ 68F) 19
Density (lb/cu.in. @ 68F) 0.301
Pouring Temperature (Light Castings) (F) 1900-2050
Pouring Temperature (Heavy Castings) (F) 1750-1900
Patternmakers Shrinkage (in/ft) 1/4
Drossing High
Gassing Low
Fluidity Medium
Comments
Wear Resistance: Very good
Corrosion Resistance*
*While corrosion reistance is listed for food products, certain alloys may be unacceptable for other reasons.
Calcium Bisulfite Not Recommended
Cane Sugar Syrups Excellent Resistance
Calcium Chloride (acid) Not Recommended
Calcium Chloride (alkaline) Not Recommended
Calcium Hydroxide Not Recommended
Calcium Hypochlorite Not Recommended
Carbonated Beverages Not Recommended
Carbon Tetrachloride, Dry Excellent Resistance
Carbon Dioxide, Moist Not Recommended
Carbon Dioxide, Dry Excellent Resistance
Butane Excellent Resistance
Carbon Tetrachloride, Moist Acceptable
Acetylene Explosive!
Ethers Excellent Resistance
Aluminum Chloride Not Recommended
Tartaric Acid Excellent Resistance
Toluene Acceptable
Trichlorethylene, Dry Excellent Resistance
Trichlorethylene, Moist Excellent Resistance
Turpentine Excellent Resistance
Varnish Excellent Resistance
Vinegar Not Recommended
Water, Acid Mine Not Recommended
Water, Condensate Excellent Resistance
Whiskey Not Recommended
Sulfuric Acid, Fuming Not Recommended
Creosote Not Recommended
Sulfuric Acid, 90% to 95% Not Recommended
Ethylene Glycol Excellent Resistance
Ferric Chloride,Sulfate Not Recommended
Ferrous Chloride, Sullate Not Recommended
Formaldehyde Excellent Resistance
Formic Acid Acceptable
Freon Excellent Resistance
Fuel Oil Excellent Resistance
Furfural Excellent Resistance
Gasoline Excellent Resistance
Gelatin Excellent Resistance
Glucose Excellent Resistance
Zinc Sulfate Not Recommended
Sodium Peroxide Acceptable
Potassium Hydroxide Not Recommended
Potassium Sulfate Not Recommended
Propane Gas Excellent Resistance
Sea Water Not Recommended
Soap Solutions Not Recommended
Sodium Bicarbonate Excellent Resistance
Sodium Bisulfate Not Recommended
Sodium Carbonate Not Recommended
Sodium Chloride Not Recommended
Sodium Cyanide Not Recommended
Sodium Hydroxide Not Recommended
Tannic Acid Excellent Resistance
Soduim Nitrate Acceptable
Hydrochloric or Muriatic Acid Not Recommended
Sodium Phosphate Excellent Resistance
Sodium Sulfate, Silicate Not Recommended
Sodium Sulfite, Thiosulfate Not Recommended
Stearic Acid Excellent Resistance
Sulfur, Solid Not Recommended
Sulfur Chloride Not Recommended
Sulfur Dioxide, Dry Excellent Resistance
Sulfur Dioxide, Moist Not Recommended
Sulfur Trioxide, Dry Excellent Resistance
Sulfuric Acid, 78% or Less Not Recommended
Sulfuric Acid, 78% to 90% Not Recommended
Sodium Hypochlorite Not Recommended
Ammonium Chloride Not Recommended
Potassium Chloride Not Recommended
Potassium Cyanide Not Recommended
Acetate Solvents Excellent Resistance
Acetic Acid, 20 % Not Recommended
Acetic Acid, 50% Not Recommended
Acetic Acid, Glacial Not Recommended
Acetone Excellent Resistance
Zinc Chloride Not Recommended
Alcohols Excellent Resistance
Chlorine, Dry Excellent Resistance
Aluminum Sulfate Not Recommended
Glue Excellent Resistance
Ammonia,Moisture-Free Excellent Resistance
Oxalic Acid Not Recommended
Ammonium Hydroxide Not Recommended
Ammonium Nitrate Not Recommended
Ammonium Sulfate Not Recommended
Aniline and Aniline Dyes Not Recommended
Asphalt Excellent Resistance
Barium Chloride Not Recommended
Barium Sulfide Not Recommended
Beer Not Recommended
Beet Sugar Syrup Excellent Resistance
Benzine Excellent Resistance
Benzol Excellent Resistance
Ammonia, Moist Gas Not Recommended
Liquor, White Not Recommended
Boric Acid Acceptable
Hydrofluoric Acid Acceptable
Hydrofluosilicic Acid Not Recommended
Hydrogen Excellent Resistance
Hydrogen Peroxide Not Recommended
Hydrogen Sulfide,Dry Not Recommended
Hydrogen Sulfide, Moist Not Recommended
Lacquers Excellent Resistance
Lacquer Thinners Excellent Resistance
Lactic Acid Not Recommended
Linseed Oil Excellent Resistance
Picric Acid Not Recommended
Liquor,Green Not Recommended
Phosphoric Acid Not Recommended
Magnesium Chloride Not Recommended
Magnesium Hydroxide Acceptable
Magnesium Sullate Not Recommended
Mercury, Mercury Salts Not Recommended
Milk Excellent Resistance
Molasses Excellent Resistance
Natural Gas Excellent Resistance
Nickel Chloride Not Recommended
Nickel Sulfate Not Recommended
Nitric Acid Not Recommended
Oleic Acid Not Recommended
Glycerine Excellent Resistance
Liquor,Black Not Recommended
Chromic Acid Not Recommended
Citric Acid Excellent Resistance
Copper Sulfate Not Recommended
Cottonseed Oil Excellent Resistance
Chlorine,Moist Not Recommended
Water, Potable Acceptable
Applications
Bearings
Body
Cover
Gears
Lever Arms
Liners
Oil Director Blank
Short Circuit Strip
Short Circuit Suppor
Strainer Nut
Strut
Valve Stems
Vista Strut
Great Castings
         St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com
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St. Paul Foundry
954 Minnehaha Avenue West
Saint Paul, Minnesota 55104
(651) 488-5567  Fax: (651) 488-0908
Sales: (651) 312-4734 email

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Alloy Guide Sheet Terms of Use

Use Good Design Principles

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.

4. Use Failure Modes and Effects Analysis to help identify possible weaknesses in designs and specifications.

5. Use computerized stress analysis tools.

6. Use appropriate certification requirements for your casting suppliers. These may include test bars, chemical certifications, radiography, dye penetrant or other non-destructive testing methods.

7. Test your design to failure in a controlled environment. Then test it to failure in a simulation of its end use.

8. You and you alone are responsible for the suitability of your design and the materials that you select.

Disclaimer

WHILE EVERY EFFORT IS MADE BY ST. PAUL FOUNDRY (SPF) TO ENSURE ACCURACY, THIS INFORMATION IS PROVIDED FOR GENERAL INFORMATION PURPOSES ONLY AND NOT FOR ANY OTHER PURPOSE. BY ACCESSING THIS INFORMATION, YOU AGREE THAT IT MAY BE REVISED AT ANY TIME, IT IS PROVIDED “AS IS” AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, THAT NO WARRANTY OR REPRESENTATION IS MADE ABOUT ITS CONTENT OR SUITABILITY FOR ANY PURPOSE, AND THAT SPF EXPRESSLY DISCLAIMS WARRANTIES OF MERCHANTABILITY AND FITNESS. YOU ASSUME ALL RISK AND LIABILITY FOR ANY LOSS, DAMAGE, CLAIM, OR EXPENSE RESULTING FROM YOUR REVIEW, USE, OR POSSESSION OF THIS INFORMATION.