EN AW – 7022 (AlZn5Mg3Cu -3.4345)

Stand: Juni 2015 - Quelle: DIN EN 573-3 / EN 515 / DIN 17611:2011

1. Chemical composition of EN AW – 7022

in the aftermath of DIN EN 573-3 (in % of the mass, rest AL)

Si Fe Cu Mn Mg Cr Zn Ti Remark Other elements
0,5 0,5 0,5-1,0 0,1-0,4 2,6-3,7 0,1-0,3 4,3-5,2 0,15

2. mechanical properties of EN AW – 7022

in the aftermath of DIN EN 485-2 Sheets and plates (common conditions)

Condition Nominal thickness Tensile strength Plug-in limit Ultimate elongation Rigor
in mm Rm in MPa Rp0,2 in MPa in % (min.) HBS
over up to min max min max A50 A
T6 3,0 12,5 450 370 8 133
T651 12,5 25,0 450 370 8 133
25,0 50,0 450 370 7 133
50,0 100,0 430 350 5 127
100,0 200,0 410 330 3 121
Physical properties General properties
(Guide values for 20° C)
Density of g/cm3 2,78 Resistance to:
Solidification range ° C 485-640 – Sea water 5
Electrical conductivity MS/m 19-23 – Weather conditions 4
Thermal conductivity W/(mK) 130-160 Hot formability
Therm. linear expansion- – extrusion presses 4
Coeffizient 10-6/K 23,6 – Drop forging 4
Modulus of elasticity N/mm2 70.000 – Open die forging 4
Weldability Surface treatment
Fusion welding Protection anodizing 2
– Gas 6 Anodizing (decorative) 6
– WIG 6 Painting/Coating 3
– MIG 6
Resistance welding 2 Contact with food no
Machinability T651
2

3. Main application / Special features of EN AW – 7022:

Mould and tool making
Due to the lower Cu content anodisable with uniform surface.

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