1. Chemical composition of EN AW-7075
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 |
0,4 |
0,5 |
1,2-2,0 |
0,3 |
2,1-2,9 |
0,18-0,28 |
5,1-6,1 |
0,2 |
0,25Zr+Ti |
0,15 |
2. mechanical properties of EN AW-7075
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 |
|
T651 |
6,0 |
12,5 |
540 |
– |
460 |
– |
8 |
– |
160 |
|
12,5 |
25,0 |
540 |
– |
470 |
– |
– |
6 |
161 |
|
25,0 |
50,0 |
530 |
– |
460 |
– |
– |
5 |
158 |
|
50,0 |
60,0 |
525 |
– |
440 |
– |
– |
4 |
155 |
|
60,0 |
80,0 |
495 |
– |
420 |
– |
– |
4 |
147 |
|
80,0 |
90,0 |
490 |
– |
390 |
– |
– |
4 |
144 |
|
90,0 |
– |
460 |
– |
360 |
– |
– |
3 |
135 |
|
100,0 |
– |
410 |
– |
300 |
– |
– |
2 |
119 |
|
120,0 |
– |
360 |
– |
260 |
– |
– |
2 |
104 |
Press |
|
|
|
|
|
|
|
|
|
T6 |
|
150 |
530 |
– |
470 |
– |
– |
6 |
– |
Physical Properties |
General properties |
(Guide values for 20° C) |
|
Density of g/cm3 |
2,80 |
Resistance to: |
|
Solidification range ° C |
480-640 |
– Sea water |
4-5 |
Electrical conductivity MS/m |
19-23 |
– Weather conditions |
4-5 |
Thermal conductivity W/(mK) |
130-160 |
Hot formability |
|
Therm. linear expansion- |
|
– extrusion presses |
5 |
Coeffizient 10-6/K |
23,4 |
– Drop forging |
4 |
Modulus of elasticity N/mm2 |
70.000 |
– Open die forging |
4 |
Weldability |
|
Surface treatment |
|
Fusion welding |
|
Protection anodizing |
3 |
– Gas |
6 |
Anodizing (decorative) |
6 |
– WIG |
6 |
Painting/Coating |
3 |
– MIG |
6 |
|
|
Resistance welding |
2 |
Kontakt mit Lebensmittel |
no |
Machinability T651 |
2 |
|
|
3. Main application / Special features of EN AW-7075:
Mould and tool making, cutting and punching tools with long service lives. Due to production, the core strength decreases continuously from 80 mm.