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PRODUCT DATA of Osprey CE7
MaterialOsprey CE7
Product DatasheetOsprey CE alloys
General InformationBy changing the alloy composition of the aluminium-silicon system, the CTE of the material can be adjusted to a couple of technical relevant materials like steel, glass, titanium or electroless nickel.
Commercially available are alloys containing between 20 and 87 wt % silicon. By raising the silicon content, the physical properties density and thermal expansion decrease while the specific stiffness increases.
Due to a powder-metallurgical production process like spray deposition or melt spinning, the rapidly solidified aluminium alloy becomes fine grained, homogeneous and isotropic. CNC machining techniques like turning and milling can be applied.
PrecautionsFragile material
Chemical CompositionAl-70Si
Name of ManufacturerSandvik Osprey
011 44 1639 634121
support@cealloys.com
www.cealloys.com

Sandvik Osprey Ltd. Millands, Neath, SA11 1NJ, UK
44 (0) 1639 634121
cealloys.osprey@sandvik.com
EXPERIENCE IN PRACTICE
Space ExperienceLimited
PHYSICAL PROPERTIES
Specific Gravity2.4
Data Quality: Manufacturer's data
ELASTIC PROPERTIES
Tensile Modulus129 GPa
Data Quality: Manufacturer's data
Shear Modulus51 GPa
Data Quality: Manufacturer's data
Poisson Ratio0.26
Data Quality: Manufacturer's data
THERMAL PROPERTIES
Thermal Conductivity120 W/m.K
Data Quality: Manufacturer's data
Thermal Expansion Coefficient7.6 μstrain/°C
Data Quality: Manufacturer's data 
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
WeldingLaser welding of Al-Si alloys up to 50% Si is currently successful
Data Quality: Manufacturer's data
PlatingPlating with Ni/Au using standard Aluminium plating techniques