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(submitted by the website administration)
| Wrought copper alloy C17000 (Beryllium Copper) | ||||
| Chemical composition: Be=1.7%, Cu = 98.3% min | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 8.41 *10³ | kg/m³ | 525 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 128 | GPa | 18500 | ksi |
| Thermal expansion (20 ºC) | 17.8*10-6 | ºCˉ¹ | 9.9*10-6 | in/(in* ºF) |
| Specific heat capacity | 419 | J/(kg*K) | 0.100 | BTU/(lb*ºF) |
| Thermal conductivity | 107 | W/(m*K) | 744 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 7.68*10-8 | Ohm*m | 7.68*10-6 | Ohm*cm |
| Tensile strength (solut. treat.) | 483 | MPa | 70000 | psi |
| Yield strength (solut. treat.) | 221 | MPa | 32000 | psi |
| Elongation (solut. treat.) | 45 | % | 45 | % |
| Hardness (solut. treat.) | 60 | RB | 60 | RB |
| Tensile strength (aged) | 1138 | MPa | 165000 | psi |
| Yield strength (aged) | 1000 | MPa | 145000 | psi |
| Elongation (aged) | 7 | % | 7 | % |
| Fatigue strength (aged) | 248 | MPa | 36000 | psi |
| Hardness (aged) | 35 | RC | 35 | RC |
| Annealing temperature | 425-650 | ºC | 800-1200 | ºF |
| Solution temperature | 790 | ºC | 1454 | ºF |
| Aging temperature | 325 | ºC | 617 | ºF |
| Aging time | 1-2 | hrs. | 1-2 | hrs. |
| Liquidus temperature | 982 | ºC | 1800 | ºF |
| Solidus temperature | 866 | ºC | 1590 | ºF |
