The aluminum alloy K80 Valve body with automotive power steering parts is a casting aluminum alloy with excellent comprehensive properties. It not only has good airtightness, weldability and cutting processing, but also can cast casting with thicker wall thickness. Moreover, the ideal combination of high strength, good plasticity and high impact toughness can be achieved through heat treatment, so it has become the preferred material for casting aluminum alloy shells in automotive power steering machines. The aluminum castings produced by Tongying Company have good strength and can be used for heat treatment to obtain good mechanical properties, physical properties and corrosion resistance. Therefore, they are widely used in automotive power steering machines.