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 LinksC87500 Silicon Brass
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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C87500 SILICON BRASS AND BRONZE
Aliases
CDA NUMBER C87500
Common Name 13B Silicon Brass
Alias 13B
Alias C875
Alias 875
Alias 500
Nearest Applicable Casting Standards
ASTM (B Series) B584
SAE (J Series) J462
Federal (QQ-C- Series) 390
Specification Composition
Minimum Maximum
Copper (Cu) 79
Lead (Pb) 0.5
Zinc (Zn) 12 16
Aluminum (Al) 0.5
Silicon (Si) 3 5
Copper + Sum of Named Elements 99.5
Specification Properties
(Heat Treat 'F' Denotes As Cast) Heat Treat State Minimum
Tensile Strength (ksi) F 60
Yield Strength (.5% extension under load) (ksi) F 24
Typical Properties
Heat Treat State Typical
Reduction of Area (%) 20
Modulus of Elasticity (ksi) 15400
Hardness (Brinell) (HB @ 500kg) 115
Machinability (% of free cutting brass) 50
Fatigue Strength (10^8 cycles) (ksi) 22
Impact Strength (Charpy) (ft-lb) 32
Compressive Strength (0.001 in. set/in.) (ksi) 26.5
Compressive Strength (0.010 in. set/in.) (ksi) 43
Compressive Strength (0.100 in. set/in.) (ksi) 75
Creep Strength (0.00001% per hour) (ksi) 28 @ 350F
Melting Range (Liquidus-Solidus)(F) 1510-1683
Coefficient of Thermal Expansion (per F @ 68-400F) 0.0000109
Thermal Conductivity (Btu/sq.ft/ft./hr/F @ 68F) 16
Specific Heat (Btu/lb/F @ 68F) 0.09
Electrical Conductivity (% IACS @ 68F) 6.7
Density (lb/cu.in. @ 68F) 0.299
Pouring Temperature (Light Castings) (F) 1900-2000
Pouring Temperature (Heavy Castings) (F) 1800-1900
Patternmakers Shrinkage (in/ft) 15/64
Drossing Low
Gassing Medium
Fluidity High
Elongation (2 inch gauge length) (%) F 17
Corrosion Resistance*
*While corrosion reistance is listed for food products, certain alloys may be unacceptable for other reasons.
Acetic Acid, 20 % Excellent Resistance
Oleic Acid Excellent Resistance
Oxalic Acid Excellent Resistance
Phosphoric Acid Excellent Resistance
Picric Acid Not Recommended
Potassium Chloride Excellent Resistance
Citric Acid Excellent Resistance
Acetate Solvents Excellent Resistance
Nickel Chloride Excellent Resistance
Acetic Acid, 50% Excellent Resistance
Acetic Acid, Glacial Excellent Resistance
Acetone Excellent Resistance
Acetylene Explosive!
Alcohols Excellent Resistance
Potassium Cyanide Not Recommended
Magnesium Hydroxide Acceptable
Lacquer Thinners Excellent Resistance
Lactic Acid Excellent Resistance
Linseed Oil Excellent Resistance
Liquor,Black Acceptable
Liquor,Green Not Recommended
Nitric Acid Not Recommended
Magnesium Chloride Excellent Resistance
Nickel Sulfate Excellent Resistance
Magnesium Sullate Excellent Resistance
Mercury, Mercury Salts Not Recommended
Milk Excellent Resistance
Molasses Excellent Resistance
Natural Gas Excellent Resistance
Ammonia, Moist Gas Not Recommended
Liquor, White Not Recommended
Carbon Dioxide, Dry Excellent Resistance
Aluminum Chloride Not Recommended
Calcium Chloride (acid) Excellent Resistance
Calcium Chloride (alkaline) Not Recommended
Calcium Hydroxide Not Recommended
Calcium Hypochlorite Not Recommended
Butane Excellent Resistance
Carbonated Beverages Excellent Resistance
Boric Acid Excellent Resistance
Carbon Dioxide, Moist Excellent Resistance
Carbon Tetrachloride, Dry Excellent Resistance
Carbon Tetrachloride, Moist Excellent Resistance
Chlorine, Dry Excellent Resistance
Chlorine,Moist Not Recommended
Chromic Acid Not Recommended
Cane Sugar Syrups Excellent Resistance
Asphalt Excellent Resistance
Hydrogen Sulfide,Dry Acceptable
Ammonia,Moisture-Free Excellent Resistance
Ammonium Chloride Not Recommended
Ammonium Hydroxide Not Recommended
Ammonium Nitrate Not Recommended
Calcium Bisulfite Excellent Resistance
Aniline and Aniline Dyes Not Recommended
Aluminum Sulfate Excellent Resistance
Barium Chloride Excellent Resistance
Barium Sulfide Not Recommended
Beer Excellent Resistance
Beet Sugar Syrup Acceptable
Benzine Excellent Resistance
Benzol Excellent Resistance
Ammonium Sulfate Excellent Resistance
Sulfur Trioxide, Dry Excellent Resistance
Lacquers Excellent Resistance
Sodium Sulfite, Thiosulfate Not Recommended
Stearic Acid Excellent Resistance
Sulfur, Solid Not Recommended
Sulfur Chloride Not Recommended
Sodium Phosphate Excellent Resistance
Sulfur Dioxide, Moist Excellent Resistance
Sodium Peroxide Acceptable
Sulfuric Acid, 78% or Less Acceptable
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
Sulfur Dioxide, Dry Excellent Resistance
Sodium Bisulfate Not Recommended
Cottonseed Oil Excellent Resistance
Potassium Hydroxide Not Recommended
Potassium Sulfate Excellent Resistance
Propane Gas Excellent Resistance
Sea Water Acceptable
Sodium Sulfate, Silicate Excellent Resistance
Sodium Bicarbonate Excellent Resistance
Trichlorethylene, Moist Excellent Resistance
Sodium Carbonate Not Recommended
Sodium Chloride Excellent Resistance
Sodium Cyanide Not Recommended
Sodium Hydroxide Not Recommended
Sodium Hypochlorite Not Recommended
Soduim Nitrate Excellent Resistance
Soap Solutions Excellent Resistance
Glycerine Excellent Resistance
Freon Excellent Resistance
Fuel Oil Excellent Resistance
Furfural Excellent Resistance
Gasoline Excellent Resistance
Gelatin Excellent Resistance
Toluene Acceptable
Glue Excellent Resistance
Ferrous Chloride, Sullate Not Recommended
Hydrochloric or Muriatic Acid Not Recommended
Hydrofluoric Acid Acceptable
Hydrofluosilicic Acid Acceptable
Hydrogen Excellent Resistance
Hydrogen Peroxide Not Recommended
Copper Sulfate Excellent Resistance
Glucose Excellent Resistance
Zinc Chloride Acceptable
Hydrogen Sulfide, Moist Not Recommended
Turpentine Excellent Resistance
Varnish Excellent Resistance
Vinegar Excellent Resistance
Water, Acid Mine Not Recommended
Water, Condensate Excellent Resistance
Formic Acid Acceptable
Whiskey Excellent Resistance
Formaldehyde Excellent Resistance
Zinc Sulfate Excellent Resistance
Creosote Acceptable
Ethers Excellent Resistance
Ethylene Glycol Excellent Resistance
Ferric Chloride,Sulfate Not Recommended
Trichlorethylene, Dry Excellent Resistance
Water, Potable Excellent Resistance
Applications
Actuating Link
Antique Hub Cap
Arm
Base
Base Plate
Base Side
Bearings
Bell Clapper
Bells
Blower
Boat Propellers - Small
Body - Volute
Bracket
Bridge Plate
Bushing
Car Base
Compass Points
Contact Arm
Cross
Dedication Plaque
Desk Plaque
Dial Torque Switch
Double Impellor
Elevation Adjustment Nut
Finial Tail
Fitter
Fleur De Lis
Globe Fairing
Grate Cover
Grate Frame Half
Handle
Heartbear Cutout
Hot Rod
Impeller
Impellers
Impellor
In Memory Plaque
Long Base
Long Spearhead's
Loon
Lower Arm Band
Lower Wall Base
Marine Fittings
Medallion
Memorial Marker
Memorial Plaque
Meteor
Middle Stem
Minnesota+note Desig
Mounting Plate
Name Plate
Name Plates
Plaque
Plaque Roschen
Plaques
Pole Cap
Post
Post Cap
Pulley
Pump Parts
Purple Heart Set
Railroad Plaque
Rocker Arms
Satake Plaque
Scale Side
Sculpture
Sheave
Side Shackle
Spanner Index Nuts
Square Floor Til
Star
Statuary
Tail Stem
Time Capsule Cover R
Torque Switch
Torque Switch Trippe
Turtle And Heart
Two Gto's
Two Porsche
Upper Arm Band
Upper Wall Base
Urn
Valve Stems
Volute Cover
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.