Material specifications KF 4?

Can someone please help me regarding specifications on the aluminum tubes in the wings? I mean like you have 4130 steel for the fuselage and struts which kind / quality is the aluminum in the wings? If someone could support me with a complete list of material I would be really happy.

All dimensions in inches.

Ribs - 0.205 birch ply
Rib cap strips - 0.102 birch ply
False ribs - 0.102 birch ply

Spars 6061-T6 2.500D x 0.0650 wall
Spar inserts 6061-T6
Drag/anti-drag braces - 6061-T6 0.625D x 0.0580 wall
Stringers - 6061-T6 0.375 x 0.035 wall