Grade	Content wt%	Density g/cm³	CTE 25℃ ppm/℃	Thermal Conductivity 25℃ W/mK	Tensile  Strength MPa	Yield Strength MPa	Poisson's  Ratio	Elongation %	Elastic  Modulus  GPa
AlSi50	Al-50%Si	2.5	11.5	140	220	210	0.28	<1	108

Other Designations: Silicon aluminum(Al/Si) alloy, AlSi50 alloy, Si/Al alloy, Al-50%Si controlled expansion alloy.

• AlSi50(Al-50%Si) alloy can be used as substrates for RF circuits and microwave;
• AlSi50(Al-50%Si)) alloy replacement titanium in Space and Airborne system;
• AlSi50(Al-50%Si)) alloy can be chosen as radar housing replacement Kovar alloy;
• Al-50%Si controlled expansion alloy also can be used as transmit and receive modules.

Applications

• Aerospace;
• RF/microwave packaging;
• Space system;
• Optical and optoelectronic housings.

 Advantages

• Lower weight than titanium;
• High thermal conductivity;
• High electrical conductivity(excellent EMI/RF shielding performance);
• Excellent machinability,weldability and surface plating performance.