3105 has good anti-rust properties, good electrical conductivity, and the electrical conductivity can reach 41%. The 3105 aluminum plate has 

high plasticity in the annealed state, good plasticity during semi-cold work hardening, low plasticity during cold work hardening, and good corrosion resistance. 

Good performance but poor machinability.

3105 aluminum plate uses:

3105 aluminum plate is an aluminum-manganese alloy and is often used as decorative aluminum plate and building material aluminum plate. For example, 

roofing aluminum panels, corrugated aluminum panels, color-coated aluminum panels, etc.