7075 aluminum vs 6061

2019-02-21

The 7075 aluminum sheet is a product that is frequently used because of its strength, toughness and corrosion resistance. It is in fact one of the strongest aluminum alloys out there. Its weight-to-strength allows it to be used for high stressed parts. In the annealed condition, the 7075 aluminum can be formed using heat methods. It’s not good with cold working. Once formed, it’s recommended that heat treatment be used. The springback of this metal is greater when being formed. To help make this metal more easily formed while in the annealed condition, it can be placed in temperatures between 200 and 250 degrees F. Heat treatments can be used to improve the hardness of this alloy. The properties of this alloy are excellent in low temperatures as well.

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

7075 is an aluminum alloy with zinc as the primary alloying element. It is strong, with a strength comparable to many steels, and has good fatigue strength and average machinability, but has less resistance to corrosion than many other Al alloys. Due to its high strength, low density, thermal properties and its ability to be highly polished, 7075 is widely used in mold tool manufacture.

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.


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