As a high-quality alloy material, aluminum alloy is now widely used in various industries. In the door lock industry which I am located, the aluminum alloy material door lock price is more than half cheaper than the full zinc alloy door lock.

Advantage：

1、Aluminum alloy has good thermal conductivity, electrical conductivity and cutting performance.

2、Aluminum alloy less wire shrinks, so it has good filling performance.

3、The aluminum alloy has low density and high strength, and the ratio of tensile strength to density is 9-15. When working at high temperature or low temperature, it also maintains good mechanical properties.

4.Aluminum alloy has good corrosion resistance and oxidation resistance. it have good corrosion resistance in fresh water, sea water, gasoline and various organic substances.

Disadvantage：

1、Low hardness, wear resistance is also poor.

2、The volume shrinkage during solidification is relatively large, about 6.6%.

3、High linear expansion coefficient.

4、Easy adhesive mold, it is necessary to strictly control the iron content in the range of 0.8%-0.9%.

5、Low melting point, limited use of high temperature.