How to Choose Between Aluminum 6061 and 7075

When aluminum 6061 is the practical choice

6061 provides a useful balance of machinability, corrosion resistance, strength and availability. It is widely used for fixtures, housings, brackets and general mechanical components.

Where aluminum 7075 adds value

7075 offers substantially higher strength and is often selected for highly loaded aerospace, robotics and performance applications. Its higher material cost is best justified when strength-to-weight performance is critical.

Choose from the part requirements

The right choice depends on load, environment, finishing requirements, budget and availability. Supplying these priorities with the drawing helps an engineer recommend the most appropriate grade.