to Wrought copper-nickel alloys and Nickel Silvers
to Properties of copper alloys
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| Wrought copper alloy C70400 (Copper-Nickel 5%) | ||||
| Chemical composition: Ni=5.5%, Mn=0.6%, Fe=1.5%, Cu=balance | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 8.94 *10³ | kg/m³ | 558 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 117 | GPa | 17000 | ksi |
| Thermal expansion (20 ºC) | 17.5*10-6 | ºCˉ¹ | 9.7*10-6 | in/(in* ºF) |
| Specific heat capacity | 377 | J/(kg*K) | 0.090 | BTU/(lb*ºF) |
| Thermal conductivity | 64.0 | W/(m*K) | 444 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 12.8*10-8 | Ohm*m | 12.8*10-6 | Ohm*cm |
| Tensile strength (annealed) | 262 | MPa | 38000 | psi |
| Yield strength (annealed) | 83 | MPa | 12000 | psi |
| Elongation (annealed) | 41 | % | 41 | % |
| Hardness (annealed) | 8 | RB | 8 | RB |
| Tensile strength (cold work) | 441 | MPa | 64000 | psi |
| Yield strength (cold work) | 434 | MPa | 63000 | psi |
| Elongation (cold work) | 5 | % | 5 | % |
| Hardness (cold work) | 72 | RB | 72 | RB |
| Annealing temperature | 600-850 | ºC | 1100-1500 | ºF |
| Liquidus temperature | 1121 | ºC | 2050 | ºF |
| Solidus temperature | 1095 | ºC | 2000 | ºF |