6061 aluminum vs 7075

6061 aluminum sheet is a popular material due to its strength, low weight, formability and resistance to moisture, heat and corrosion. 6061 aluminum sheet has an ultimate tensile strength of at least 42,000 psi and yield strength of at least 35,000 psi making it ideal for a wide range of applications. 6061 aluminum is the most widely used aluminum grade.

6061 aluminum sheet and 6063 aluminum sheet are both belong to the 6000 series aluminum alloy, they are similar but still have difference. The main alloying elements of 6061 and 6063 aluminum alloy are magnesium and silicon. 6061 aluminum has more alloy elements content than 6063 aluminum. With excellent processing performance, excellent weldability, extrusion and electroplating, good corrosion resistance, toughness. Easy to polish, coated, and anodized, is a typical extruded alloy.

7075 aluminum sheet is one of the highest strength aluminum alloys available Its strength-to weight ratio is excellent and it is ideally used for highly stressed parts. It may be formed in the annealed condition and subsequently heat treated. Spot or flash welding can be used, although arc and gas welding are not recommended. It is available in the clad form to improve the corrosion resistance with the over-all high strength being only moderately affected. Applications: Used where highest strength