6061 VS 7075 Aluminum, Which One Is Better?

DALIAN, China - Dec. 13, 2021 - PRLog -- Yield Strength
Yield strength is essentially the ability of a material to withstand pressure and impact without deformation. 7075 aluminum alloy has a higher yield strength than 6061 aluminum. Due to the higher percentage of zinc, the yield strength of the former is higher. 7075 aluminum can withstand greater pressure and greater impact without deformation.
Thermal Conductivity
Aluminum alloys are generally good conductors of heat. However, 7075 aluminum and 6061 aluminum have different thermal conductivity. This is also the result of their chemical composition and heat treatment. The thermal conductivity of 6061 aluminum is slightly higher than that of 7075 aluminum. Therefore, if heat dissipation is the main purpose, you will need to use 6061 aluminum.
Resistivity
Low resistivity means that the material has good electrical conductivity, and vice versa. Both 7075 and 6061 aluminum have low resistivity, which means they are good electrical conductors. Therefore, these alloys are suitable for electrical applications. However, the difference between 6061 and 7075 aluminum is that 6061 has the lowest resistivity. Therefore, it is a better conductor than 7075 aluminum.
Elasticity
Elasticity is a measure of the stiffness of a material. In other words, you need to check the elasticity of the material before use. Elasticity can also help you determine the material's ability to resist deformation. 6061 and 7075 aluminum alloys have similar elasticity.
Temperature Resistance
Temperature resistance is a measure of the ability of a material to withstand heat without causing deformation. We compare the melting points to analyze the temperature resistance of 7075 t6 and 6061 t6. The melting point of 7075 aluminum is 477 – 635°C, while the melting point of 6061 aluminum is 582 – 652°C. Therefore, 6061 alloy can withstand higher temperatures than 7075 alloy. However, you should note that 7075 aluminum has an excellent response to heat treatme
Material Hardness
The harder the material, the greater the chance of resisting indentation, penetration, and other deformation forces. Both of these alloys are hard enough to resist pressure and will not crack or deform. When choosing between 6061 and 7075 aluminum alloys, material hardness is an important factor. To be precise, 7075 aluminum alloy is harder than 6061 aluminum.

Corrosion Resistance

6061 aluminum alloy is more resistant to corrosion than 7075. The copper content of 7075 alloy is much higher than that of 6061. Copper usually reacts quickly with the environment and causes corrosion, so 7075 aluminum is more prone to corrosion.
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