How does the mechanical strength of aluminium compare to copper?

How does the mechanical strength of aluminium compare to copper?

• A. Aluminium has three times the mechanical strength of copper.
• B. Copper has one third of the mechanical strength of aluminium.
• C. Aluminium has one third of the mechanical strength of copper.
• D. They have equal mechanical strength.

Answer: (C)

Mechanical strength is how much stress a material can withstand before deforming or failing. Copper typically offers higher strength than aluminum while aluminum provides a much lighter option. In common grades and heat treatments, copper’s strength (whether you look at yield or tensile strength) is roughly two to three times greater than that of aluminum. So, stating that aluminum has about one third of copper’s mechanical strength captures this general relationship: copper is stronger, and aluminum is weaker by a factor of about three. Remember that exact numbers vary with specific alloys and tempering, but the overall idea holds.

Mechanical strength is how much stress a material can withstand before deforming or failing. Copper typically offers higher strength than aluminum while aluminum provides a much lighter option. In common grades and heat treatments, copper’s strength (whether you look at yield or tensile strength) is roughly two to three times greater than that of aluminum. So, stating that aluminum has about one third of copper’s mechanical strength captures this general relationship: copper is stronger, and aluminum is weaker by a factor of about three. Remember that exact numbers vary with specific alloys and tempering, but the overall idea holds.