Copper Alloys

18% Nickel Silver

Application & Characteristics 
Good resistance to oxidizing acids and humid, salty atmospheres. Tubular parts for musical instruments, cameras and marine hardware.
Chemical Composition (%)
Cu 65; Zn 17; Ni 18
Physical Properties
Melting Range (°F)1960 – 2030
Density (lbs/in³) 68F0.316
Thermal Expansion (in/in °Fx10 to the power of -6)9
Electrical Resistivity (ohms/cir mil/ft.) 68F173
Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)58
Yield Strength (psi x 10³)25
Elongation ( % )40
HardnessB40(Rockwell)
Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³)78
Yield Strength (psi x 10³)60
Elongation ( % )14
HardnessB78(Rockwell)
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)94
Yield Strength (psi x 10³)74
Elongation ( % )3
HardnessB87(Rockwell)

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