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C99500 Special Alloys Cast SPECIAL ALLOYS Special Alloys true true https://api.copper.org/alloys.xhtml/C99500
Chemical Composition
Elements
Cu(1) Pb Zn Fe Ni Al Mn Si
(1) Cu + Sum of Named Elements 99.7% min.
Min (%) 0.50 3.0 3.5 0.50 0.50
Max (%) Rem 0.09 2.0 5.0 5.50 2.0 0.50 2.0
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Brinell Hardness, 500 kg load Brinell Hardness, 3000 kg load Proportional Limit
(ksi)
* Measured at room temperature, 68°F (20°C).
As Sand Cast As Sand Cast M01 70 Min for Standard
 40 Min for Standard
 12 Min for Standard
 145 Typ
 50 Typ
 21 Typ
Precipitation Hardened TF00 86 Typ
 62 Typ
 8 Typ
 196 Typ
Physical Properties
Densitylb/cu in. at 68°F 0.3
Specific Gravity 8.3
Electrical Conductivity% IACS at 68°F 10
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 8.3
Modulus of Elasticity in Tensionksi 19000
Casting Characteristics
Casting Attribute Level
Casting Yield Low
Drossing Medium
Effect of Section Size Low
Fluidity Medium
Gassing Low
Patternmakers Shrinkage inches per inch 3/16
Shrinkage in Solidification High
Fabrication Properties
Technique Suitability
Gas Shielded Arc Welding Good
Machinability Rating 50
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties
Treatment Minimum* Value* Time** Medium
* Temperature is measured in Fahrenheit. ** Time is measured in minutes.
Stress Relief 600
Solution Treatment 1625 60 Water
Precipitation Treatment 900 60
Typical uses
Product Category Product Reason Category Reason
Electrical Electrical Parts Conductivity (Electrical) Electrical Conductivity
Electrical Parts Conductivity (Thermal) Thermal Conductivity
Electrical Parts Corrosion Resistance Corrosion Resistance
Electrical Parts Corrosion Resistance Corrosion Resistance to Numerous Environments
Electrical Parts Mechanical Properties Moderate Strength
Electrical Parts Mechanical Properties Retains Strength at Elevated Temperatures
Industrial Gears for Mining Equipment Corrosion Resistance Corrosion Resistance
Gears for Mining Equipment Corrosion Resistance Corrosion Resistance to Numerous Environments
Gears for Mining Equipment Mechanical Properties Moderate Strength
Gears for Mining Equipment Mechanical Properties Retains Strength at Elevated Temperatures
Propeller Wheels Corrosion Resistance Corrosion Resistance
Propeller Wheels Corrosion Resistance Corrosion Resistance to Numerous Environments
Propeller Wheels Mechanical Properties Moderate Strength
Propeller Wheels Mechanical Properties Retains Strength at Elevated Temperatures
Valve Stems Corrosion Resistance Corrosion Resistance
Valve Stems Corrosion Resistance Corrosion Resistance to Numerous Environments
Valve Stems Mechanical Properties Moderate Strength
Valve Stems Mechanical Properties Retains Strength at Elevated Temperatures
Marine Outboard Marine Components Corrosion Resistance Corrosion Resistance
Outboard Marine Components Corrosion Resistance Corrosion Resistance to Numerous Environments
Outboard Marine Components Corrosion Resistance Corrosion Resistance to Salt Water
Outboard Marine Components Mechanical Properties Moderate Strength
Outboard Marine Components Mechanical Properties Retains Strength at Elevated Temperatures
Applicable Specifications
Form Specific Sub-Form Application System Standard Description
As Continuous Cast ASTM B505/B505M COPPER BASE ALLOY CONTINUOUS CASTINGS
As Sand Cast Castings ASTM B763/B763M COPPER ALLOY SAND CASTINGS FOR VALVE APPLICATIONS
Ingot ASTM B30 COPPER BASE ALLOYS IN INGOT FORM
Corrosion Properties

No Corrosion Properties Available.