to Wrought copper-nickel alloys and Nickel Silvers
to Properties of copper alloys
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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 |