Data sheet AA2011
General properties
Aluminium-copper alloy, general purpose, whose main properties are high strength and very good machinability (free-cutting-alloy).
In general is used in form of rods and bars.
Ex stock the following tempers are available:
- T3 (drawn bars)
- T6 (extruded bars).
Other tempers are delivered upon request.
Typical applications
Machined parts (very high cutting speed), bolts, turned parts.
Minimum mechanical properties at room temperature
Bars
Temper |
Thickness (mm) |
Rm (MPa) | Rp0.2 (MPa) |
A % |
|
T3 |
Up to 40 |
320 | 270 |
10 |
|
From 40 to 50 |
300 | 250 |
10 |
||
From 50 To 80 |
280 | 210 |
10 |
||
T6 |
Up to 75 (1) | Up to 60 (2) |
310 | 230 |
8 |
| From 75 to 200 (1) |
|
295 | 195 |
6 |
|
- Round bars - diameter
- Square, hexagons, rectangular bars - thickness
Physical properties
Specific gravity 2.820 g/cm3 at 20 °C
Thermal conductivity at 20 °C
Temper |
W/m °C |
T3 |
151 |
T6 |
172 |
Elastic modulus: 70000 Mpa
Linear thermal expansion coefficient
Temperature °C |
10-6 mm/mm °C |
-50 > 20 |
21.4 |
20 > 100 |
23.1 |
100 > 200 |
24.0 |
200 > 300 |
25.0 |
Technological properties:
Ease of machining: very good
Ease of welding: poor (TIG - MIG)