At present silicon aluminum alloys (AlSi alloys) can be applied in many technical areas. Due to the outstanding technological properties, AlSi alloys are widely used in automotive, motorcycles and military industry, for example, rotors, engine pistons, cylinder liners, intake valves, valve seats, etc. 

Here are the outstanding properties of the AlSi alloy auto parts.

Low density,only 1/3 weight of cast iron and steel.
High strength and good fracture toughness.
Excellent heat dissipation and wear-resistance.
High corrosion resistance in different media.
Low CTE,adjustable via Si content.
Environmentally friendly,non-toxic materials.