Cast Aluminum Alloy - an overview | ScienceDirect
Aluminium–silicon–copper alloys, where the silicon content varies from 7 to 9 wt.% and that of copper from 2 to 4 wt.%, such as AlSi6Cu (319.0, 45000), AlSi7Cu0.5Mg (45500), AlSiCu3 (333.0, 46200), AlSi9Cu3(Fe) (333.0, 46000), AlSi12CuNiMg (336.0, 48000),