Automotive Casting Material

Highest Usage: About 85% of automotive die-cast parts use aluminum alloy.

Advantages: Low density (1/3 of steel), high specific strength, corrosion resistance, good thermal conductivity, mature die-casting process.

For Integrated Die Casting: Uses heat-treatment-free aluminum alloy to avoid deformation during heat treatment of large castings.

Magnesium Alloy
Advantages: Even lower density (30% lighter than aluminum), high specific strength, good vibration damping and noise reduction performance.

Applications: Instrument panel frames, center console brackets, headlight brackets, and other non-load-bearing or light-load components.

Zinc Alloy
Advantages: Low melting point, good fluidity, easy to die-cast thin-walled complex parts, high surface finish.

Applications: Door handles, locks, small precision components, etc.

Copper Alloy
Less commonly used, mainly for radiators, bearings, and other parts requiring high thermal conductivity or wear resistance.

New Energy Vehicle Trends
Rapid increase in aluminum alloy usage: From about 10% in the early stages to over 25%, with some high-end models exceeding 80% (combined with high-strength steel).