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Aluminium alloy, can be hardened

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Aluminium alloy, can be hardened

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
This information is for reference only; we do not assume any liability for its accuracy. The properties of metal materials are highly dependent on their thermal and/or mechanical treatment.

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