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
AlSi70	Si-30%Al	2.43	7.5	120	138	138	0.25	<1	131

Other Designations: Silicon aluminum alloy, Al/Si, Si-30%Al controlled expansion alloy.

Product Description

• AlSi70 alloy used as carriers for sensoring,substituting Cu-W for military applications;
• AlSi70 microwave carrier for telecommunications;
• AlSi70 transmit modules carrier;
• AlSi70 alloy used as substrate for high-power LED;
• AlSi70 replacement stainless steel,used as optical housings for aerospace applications.

Applications

• Telecommunication;
• Military Industry;
• Aerospace .

Advantages

• Low cost;
• High thermal conductivity;
• Easy to be machined, welded and plated;
• CTE matched to LTCC;