AlZn5Mg3Cu

Material No.

EN AW-7022

DIN material No.

3.4345

Abbreviation

AlZn5Mg3Cu

Description

Aluminium alloy, can be hardened

Composition
Alloy constituents [%]

Zn: 4.3 – 5.2
Mg: 2.6 – 3.7
Cu: 0.5 – 1.0

Density [g/cm³]

2.78

Yield point
Rp0.2 [N/mm²] min. – max.

330 – 380

Tensile strength
Rm [N/mm²]  min. – max.

420 – 460

Elongation after fracture
A [%]  min. – max.

7

Brinell hardness
HB reference value

140

Corrosion resistance
in normal atmosphere

Moderate

Corrosion resistance
in coastal atmosphere

Poor

Machinability

Very good

Weldability

Good – moderate

Anodising capability

Good (corrosion protection)
Moderate (decorative)

High-gloss polishing,
mechanical

 -

Main uses

Components subject to extremely high levels of stress in machine construction and aeronautical engineering