All materials
Controlled expansion alloys
Osprey® CE13F
Controlled expansion aluminium-silicon alloy, Al-42%Si, with a room-temperature expansion of 12.2 ppm/°C and a density of 2.55 g/cc. Machined components for electronics packaging, photonics and space hardware.
Physical, mechanical and thermal properties
| Composition | Al-42%Si |
|---|---|
| Tensile strength, MPa | 205 |
| Yield strength, MPa | 147 |
| Young's modulus, GPa | 101.9 |
| Density, g/cc | 2.55 |
| Hardness, HV | 90 |
| Thermal conductivity at 25°C, W/m·K | 145 |
| CTE at room temp., ppm/°C | 12.2 |
| CTE 25–200°C, ppm/°C | 13.7 |
| CTE 25–500°C, ppm/°C | 15.5 |
Supplied as
Machined components to drawing, from billet. Controlled expansion alloys are not supplied as powder.