6061 Vs 7075 Fatigue. If you need an alloy that is weldable machinable and offers great versatility go for the 6061. Both are better suited for certain types of application than the other. Fatigue Strength 14000 psi. Both are furnished in the T6 temper.
When we compare the resistance of 6061 and 7075 we discovered that the aluminum alloy grade 6061 has more resistance to corrosion than 7075. Have been trying to do some 7075 at the same voltage 1100 volts temp 70-72 deg and time 15 min as the 6061 exact same part just different material. For each property being compared the top bar is 6061-T6 aluminum and the bottom bar is 7075-T6 aluminum. If you need an alloy that is weldable machinable and offers great versatility go for the 6061. When we do the 7075 it comes out with a burnt finish. This is a result of the chemical composition of both alloys.
Tensile Yield Strength 40000 psi.
Tensile Yield Strength 40000 psi. There are 30 material properties with values for both materials. 7075 is by far the strongest but it cant be welded and there are very minimal differences from a riders standpoint between 6061 and 7005. We are a small shop that does some anodizing on the side. For each property being compared the top bar is 6061-T6 aluminum and the bottom bar is 7075-T6 aluminum. They have a moderately high 91 of their average alloy composition in common.