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Wrought copper alloy C75700 (Nickel Silver 65-12)

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Wrought copper alloy C75700 (Nickel Silver 65-12)
Chemical composition: Ni=12%, Zn=23%, Cu=65%
Property Value in metric unit Value in US unit
Density 8.69*10³ kg/m³ 542 lb/ft³
Modulus of elasticity 124 GPa 18000 ksi
Thermal expansion (20 ºC) 16.2*10-6 ºCˉ¹ 9.0*10-6 in/(in* ºF)
Specific heat capacity 377 J/(kg*K) 0.090 BTU/(lb*ºF)
Thermal conductivity 39.8 W/(m*K) 276 BTU*in/(hr*ft²*ºF)
Electric resistivity 21.6*10-8 Ohm*m 21.6*10-6 Ohm*cm
Tensile strength (annealed) 359 MPa 52000 psi
Yield strength (annealed) 124 MPa 18000 psi
Elongation (annealed) 48 % 48 %
Hardness (annealed) 22 RB 22 RB
Tensile strength (cold work) 641 MPa 93000 psi
Yield strength (cold work) 545 MPa 79000 psi
Elongation (cold work) 2 % 2 %
Shear strength (cold work) 386 MPa 56000 psi
Hardness (cold work) 92 RB 92 RB
Annealing temperature 600-850 ºC 1100-1500 ºF
Liquidus temperature 1038 ºC 1900 ºF
Solidus temperature 1000 ºC 1830 ºF

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