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Metal Properties

Cupro-Nickel 30%

 
Application & Characteristics
Highly resistant to corrosive fluids, particularly alkalis. Frequently used for fine-wire connectors and electrical contacts.
 
Chemical Composition (%)
Cu 68.9; Ni 30; Fe 0.5; Mn 0.6
 
Physical Properties
Melting Range (°F) 2140 – 2260
Density (lbs/in³) 68F 0.323
Thermal Expansion (in/in °Fx10 to the power of -6) 9.0
Electrical Resistivity (ohms/cir mil/ft.) 68F 225
 
Mechanical Properties – Temper = A
Tensile Strength (psi x 10³) 55
Yield Strength (psi x 10³) 20
Elongation ( % ) 40
Hardness B35(Rockwell)
 
Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³) 75
Yield Strength (psi x 10³) 65
Elongation ( % ) 15
Hardness B65(Rockwell)
 
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³) 90
Yield Strength (psi x 10³) 80
Elongation ( % ) 8
Hardness B85(Rockwell)