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.



Skip Navigation LinksC92700 Copper Tin Alloy
St. Paul
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Great Castings          St. Paul Foundry 954 Minnehaha Ave West St. Paul MN 55104 651-488-5567 www.stpaulfoundry.com

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C92700 COPPER TIN ALLOY
Aliases
CDA NUMBER C92700
Common Name 88-10-2-0
Alias C927
Alias 927
SAE 63
Alias 206
Alias 88-10-2
Nearest Applicable Casting Standards
ASTM (B Series) B505
SAE (J Series) 63
Specification Composition
Minimum Maximum
Copper (Cu) 86 89
Tin (Sn) 9 11
Lead (Pb) 4 6
Zinc (Zn) 1
Iron (Fe) 0.2
Antimony (SB) 0.25
Nickel (Ni) 2
Sulphur (S) 0.05
Phosphorous (P) 0.1
Aluminum (Al) 0.005
Silicon (Si) 0.005
Copper + Sum of Named Elements 99.3
Phosphorous shall be 1.5%, Max for continuous castings 1.5
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Tensile Strength (ksi) F 35
Elongation (2 inch gauge length) (%) F 10
Typical Properties
Heat Treat State Typical
Modulus of Elasticity (ksi) 16000
Hardness (Brinell) (HB @ 500kg) 77
Machinability (% of free cutting brass) 45
Melting Range (Liquidus-Solidus)(F) 1800-1550
Coefficient of Thermal Expansion (per F @ 68-400F) 0.000010
Specific Heat (Btu/lb/F @ 68F) 0.09
Electrical Conductivity (% IACS @ 68F) 11
Density (lb/cu.in. @ 68F) .317
Patternmakers Shrinkage (in/ft) 3/16
Drossing Low
Gassing Medium
Fluidity Medium
Shrinkage Low
Casting Yield Medium
Comments
Wear Resistance: Very Good
Corrosion Resistance*
*While corrosion reistance is listed for food products, certain alloys may be unacceptable for other reasons.
Phosphoric Acid Excellent Resistance
Potassium Chloride Excellent Resistance
Oxalic Acid Acceptable
Potassium Cyanide Not Recommended
Oleic Acid Acceptable
Picric Acid Not Recommended
Acetate Solvents Excellent Resistance
Acetic Acid, 50% Acceptable
Aluminum Chloride Not Recommended
Alcohols Excellent Resistance
Magnesium Chloride Excellent Resistance
Acetic Acid, Glacial Excellent Resistance
Acetone Excellent Resistance
Acetylene Explosive!
Acetic Acid, 20 % Acceptable
Magnesium Hydroxide Acceptable
Lactic Acid Excellent Resistance
Linseed Oil Excellent Resistance
Liquor,Black Acceptable
Carbon Tetrachloride, Dry Excellent Resistance
Aluminum Sulfate Acceptable
Magnesium Sullate Excellent Resistance
Liquor, White Not Recommended
Nitric Acid Not Recommended
Mercury, Mercury Salts Not Recommended
Milk Excellent Resistance
Molasses Excellent Resistance
Natural Gas Excellent Resistance
Nickel Chloride Excellent Resistance
Nickel Sulfate Excellent Resistance
Liquor,Green Not Recommended
Boric Acid Excellent Resistance
Sodium Phosphate Excellent Resistance
Lacquer Thinners Excellent Resistance
Copper Sulfate Excellent Resistance
Citric Acid Excellent Resistance
Chromic Acid Not Recommended
Chlorine,Moist Acceptable
Chlorine, Dry Excellent Resistance
Carbon Tetrachloride, Moist Acceptable
Carbon Dioxide, Moist Acceptable
Carbonated Beverages Not Recommended
Cane Sugar Syrups Acceptable
Calcium Hypochlorite Acceptable
Calcium Hydroxide Not Recommended
Carbon Dioxide, Dry Excellent Resistance
Barium Chloride Excellent Resistance
Ammonia,Moisture-Free Excellent Resistance
Ammonium Chloride Not Recommended
Ammonium Hydroxide Not Recommended
Ammonium Nitrate Not Recommended
Ammonium Sulfate Acceptable
Calcium Chloride (acid) Acceptable
Asphalt Excellent Resistance
Butane Excellent Resistance
Barium Sulfide Not Recommended
Beer Acceptable
Beet Sugar Syrup Acceptable
Benzine Excellent Resistance
Benzol Excellent Resistance
Ammonia, Moist Gas Not Recommended
Aniline and Aniline Dyes Not Recommended
Sulfuric Acid, 78% or Less Acceptable
Sodium Sulfite, Thiosulfate Not Recommended
Stearic Acid Excellent Resistance
Sulfur, Solid Not Recommended
Sulfur Chloride Not Recommended
Sulfur Dioxide, Dry Excellent Resistance
Sodium Sulfate, Silicate Acceptable
Sulfur Trioxide, Dry Excellent Resistance
Calcium Chloride (alkaline) Not Recommended
Sulfuric Acid, 78% to 90% Not Recommended
Sulfuric Acid, 90% to 95% Not Recommended
Sulfuric Acid, Fuming Not Recommended
Tannic Acid Excellent Resistance
Tartaric Acid Excellent Resistance
Toluene Excellent Resistance
Sulfur Dioxide, Moist Excellent Resistance
Sodium Carbonate Excellent Resistance
Potassium Hydroxide Not Recommended
Potassium Sulfate Excellent Resistance
Propane Gas Excellent Resistance
Sea Water Excellent Resistance
Soap Solutions Excellent Resistance
Cottonseed Oil Excellent Resistance
Sodium Bisulfate Not Recommended
Turpentine Excellent Resistance
Sodium Chloride Excellent Resistance
Sodium Cyanide Not Recommended
Sodium Hydroxide Not Recommended
Sodium Hypochlorite Not Recommended
Soduim Nitrate Acceptable
Sodium Peroxide Acceptable
Sodium Bicarbonate Excellent Resistance
Hydrochloric or Muriatic Acid Not Recommended
Fuel Oil Excellent Resistance
Furfural Excellent Resistance
Gasoline Excellent Resistance
Gelatin Excellent Resistance
Glucose Excellent Resistance
Trichlorethylene, Dry Excellent Resistance
Glycerine Excellent Resistance
Formaldehyde Excellent Resistance
Hydrofluoric Acid Acceptable
Hydrofluosilicic Acid Acceptable
Hydrogen Excellent Resistance
Hydrogen Peroxide Not Recommended
Hydrogen Sulfide,Dry Not Recommended
Hydrogen Sulfide, Moist Not Recommended
Glue Excellent Resistance
Zinc Sulfate Excellent Resistance
Lacquers Excellent Resistance
Varnish Excellent Resistance
Vinegar Acceptable
Water, Acid Mine Not Recommended
Water, Condensate Excellent Resistance
Water, Potable Excellent Resistance
Freon Excellent Resistance
Zinc Chloride Not Recommended
Formic Acid Excellent Resistance
Creosote Acceptable
Ethers Excellent Resistance
Ethylene Glycol Excellent Resistance
Ferric Chloride,Sulfate Not Recommended
Ferrous Chloride, Sullate Not Recommended
Trichlorethylene, Moist Excellent Resistance
Whiskey Not Recommended
Calcium Bisulfite Acceptable
Applications
Automobile Fittings
Bushings
General Utility Bearings
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
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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.