What is the Difference Between Cast and Wrought Aluminium Alloys?

The main difference between cast and wrought aluminum alloys lies in their production processes and properties. Here are the key differences between the two:

1. Production Process: Cast aluminum is produced by melting aluminum in a furnace and pouring it into a mold, while wrought aluminum is made by mechanically working aluminum in its solid state, such as through rolling, extrusion, or forging.
2. Percentage of Alloying Elements: Cast aluminum alloys typically have a larger percentage of alloying elements in their composition, while wrought aluminum alloys have a higher aluminum content, with about 85% of their makeup being aluminum.
3. Tensile Strength: Wrought aluminum alloys have a higher tensile strength compared to cast aluminum alloys.
4. Thickness: Cast aluminum alloys are generally thicker and heavier, while wrought aluminum alloys can be obtained down to a foil thickness.
5. Precision: Due to its low tensile strength, cast aluminum alloys achieve higher precision levels. Wrought aluminum alloys, on the other hand, are better for processing and shaping after heat treatment.
6. Cost-Effectiveness: Cast aluminum alloys tend to have a lower price per pound, while wrought aluminum alloys have higher cost-effectiveness due to their better mechanical properties and lower melting point.

In summary, cast aluminum alloys are characterized by their casting properties and higher alloying element content, while wrought aluminum alloys are known for their mechanical working, higher aluminum content, and better tensile strength.

Comparative Table: Cast vs Wrought Aluminium Alloys

Here is a table comparing the differences between cast and wrought aluminum alloys:

Cast aluminum alloys are characterized by their ability to be cast and have properties that can be altered through strain hardening or cold working. In contrast, wrought aluminum alloys are better suited for processing through mechanical working and have better tensile strength.