Find suppliers for this alloyC19140
Chemical Composition
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag.
Min (%)0.400.150.8
Max (%)Rem0.80.050.500.050.351.2
Mechanical Properties*
Temper Code
Tensile Strength
YS-0.5% Ext
Section Size
RodPrecipitation Heat Treated or Spinodal Heat Treated and HardTL0485   Typ
75   Typ
5   Typ
WirePrecipitation HardenedTF0065   Typ
40   Typ
25   Typ
Precipitation Heat Treated or Spinodal Heat Treated and 1/2 HardTL0286   Typ
70   Typ
7   Typ
Precipitation Heat Treated or Spinodal Heat Treated and 1/4 HardTL0178.5   Typ
68   Typ
12   Typ
Precipitation Heat Treated or Spinodal Heat Treated and SpringTL08107   Typ
98   Typ
3   Typ
* Measured at room temperature, 68°F (20°C).
Physical Properties
(1) Volume basis, after aging treatment
(2) After aging treatment
Melting Point - Liquidus°F1980
Melting Point - Solidus°F1900
Densitylb/cu in. at 68°F0.32
Specific Gravity8.88
Electrical Conductivity% IACS at 68°F55(1)
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F146(2)
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)9.8
Specific Heat CapacityBtu/ lb /°F at 68°F0.092
Modulus of Elasticity in Tensionksi18000
Modulus of Rigidityksi6000
Fabrication Properties
Technique Suitability
Oxyacetylene WeldingNot Recommended
Gas Shielded Arc WeldingNot Recommended
Coated Metal Arc WeldingNot Recommended
Spot WeldNot Recommended
Seam WeldNot Recommended
Butt WeldFair
Capacity for Being Cold WorkedGood
Capacity for Being Hot FormedPoor
Machinability Rating75
Common Fabrication Processes
  • Cold Heading
  • Machining
Thermal Properties
Treatment Minimum* Maximum* Value*
* Temperature is measured in Fahrenheit.
Solution Treatment13001450
Precipitation Treatment800
Hot Treatment14001600
Typical uses
Product Category Product Reason Category Reason
ElectricalConnector PinsConductivity (Electrical)Electrical Conductivity
ContactsConductivity (Electrical)Electrical Conductivity
ContactsConductivity (Thermal)Thermal Conductivity
ContactsCorrosion ResistanceCorrosion Resistance
ContactsMechanical PropertiesModerate Strength
SocketsConductivity (Electrical)Electrical Conductivity
SocketsConductivity (Thermal)Thermal Conductivity
SocketsCorrosion ResistanceCorrosion Resistance
SocketsMechanical PropertiesHigh Strength
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No information available.