1. Chemical composition of EN AW-2024
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 |
3,8-4,9 |
0,3-0,9 |
1,2-1,8 |
0,10 |
0,25 |
0,15 |
0,20 Ti+Zr |
0,15 |
2. mechanical properties of EN AW-2024
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 |
|
über |
bis |
min |
max |
min |
max |
A50 |
A |
|
T451 |
1,5 |
6,0 |
435 |
- |
290 |
- |
14 |
- |
123 |
|
6,0 |
12,5 |
440 |
- |
290 |
- |
15 |
- |
124 |
|
12,5 |
40,0 |
430 |
- |
290 |
- |
- |
11 |
122 |
|
40,0 |
80,0 |
420 |
- |
290 |
- |
- |
8 |
120 |
|
80,0 |
100,0 |
400 |
- |
285 |
- |
- |
7 |
115 |
|
100,0 |
120,0 |
380 |
- |
270 |
- |
- |
5 |
110 |
Physical properties |
General properties |
(Guide values for 20° C) |
|
Density of g/cm3 |
2,77 |
Resistance to: |
|
Solidification range ° C |
505-640 |
- Sea water |
5 |
Electrical conductivity MS/m |
18-21 |
- Weather conditions |
5 |
Thermal conductivity W/(mK) |
130-150 |
Hot formability |
|
Therm. linear expansion- |
|
- extrusion presses |
5 |
Coeffizient 10-6/K |
22,9 |
- Drop forging |
4 |
Modulus of elasticity N/mm2 |
70.000 |
- Open die forging |
3 |
Weldability |
|
Surface treatment |
|
Fusion welding |
|
Protection anodizing |
2 |
- Gas |
6 |
Anodizing (decorative) |
6 |
- WIG |
6 |
Painting/Coating |
3 |
- MIG |
6 |
|
|
Resistance welding |
1 |
Contact with food |
no |
|
|
|
|
Machinability T351
|
2 |
|
|
3. Main application / Special features of EN AW-2024:
A resilient material with increased strength values, which is mainly used in the aerospace industry. Use at elevated operating temperatures above 120 ° b is 180 ° C. Since normally only cold cured (T351) is used, problems can arise with larger thicknesses due to residual stress. Especially with asymmetrical machining.