J'ai trouvé des comparaisons.

I found comparisons.

He encontrado algunas comparativas.

7075-T6 has a much higher tensile strength and is harder than 6061-T6.
7075-T6 aluminum has a higher tensile strength and is harder than 660 bronze bearing

7075-T6 principal alloying ingredients are Zinc and copper, which make it one of the highest-strength aluminum alloys that are available.
In fact, its typical strength in the T6 temper is higher than most mild steels.

7075-T6 Aluminum
Physical and Mechanical Properties   Ultimate Tensile Strength, psi   83,000
Yield Strength, psi   73,000
Brinell Hardness   150
Rockwell Hardness   B87

6061-T6 Aluminum
Physical and Mechanical Properties   Ultimate Tensile Strength, psi   45,000
Yield Strength, psi   40,000
Brinell Hardness   95
Rockwell Hardness   B60

Bronze Bearing


Bearing Bronze (C932), a/k/a SAE 660
Minimum Properties   Ultimate Tensile Strength, psi   35,000
Yield Strength, psi   20,000
Brinell Hardness   65



Aluminum Bronze, C954
Minimum Properties    Ultimate Tensile Strength, psi    85,000
Yield Strength, psi    32,000
Elongation in 2"    12%
Brinell Hardness    170

On voit que l'aluminium bronze C954 est bien placé ,ce qui me conforte dans mon choix.

We see that bronze aluminum C954 is well placed, which confirms my choice.

Vemos que el bronce-aluminio C954 está bien posicionado, lo cual me reafirma en mi elección.