Data sheet AA6061
General properties
Aluminium-magnesium-silicon alloy, general purpose, whose main properties are high resistance to oxidation and corrosion in general, very good toughness both at room temperature and at low temperatures; mechanical strength is not very high, cold formability is good; fusion weldable.
Generally used in form of sheet, plate, rod and bar.
Ex stock 0, T6, T651 tempers are available; other tempers can be delivered on demand.
Typical applications
Structural components for which moderate strength and high corrosion resistance are required, welded parts and structures, trucks, shipbuilding, railway coaches, cryogenic components.
Minimum mechanical properties at room temperature
Sheet and plate
Temper |
Thickness (mm) |
Rm (MPa) |
Rp0.2 (MPa) |
A % |
Bending radius (1)(2) |
BHN (1) |
|
| 0 | 0.5 | 1.5 | 150 (3) | 85 (3) | 14 | 0.5 x s | 40 |
| 1.5 | 3.0 | 150 (3) | 85 (3) | 16 | 1.0 x s | 40 | |
| 3.0 | 6.0 | 150 (3) | 85 (3) | 19 | 1.0 x s | 40 | |
T6 T651 |
0.5 | 1.5 | 290 | 240 | 6 | 2.5 x s | 88 |
| 1.5 | 3.0 | 290 | 240 | 7 | 3.5 x s | 88 | |
| 3.0 | 6.0 | 290 | 240 | 10 | 4.0 x s | 88 | |
| 6.0 | 12.5 | 290 | 240 | 9 | 5.0 x s | 88 | |
| 12.5 | 40 | 290 | 240 | 8 | 88 | ||
| 40 | 80 | 290 | 240 | 6 | 88 | ||
| 80 | 100 | 290 | 240 | 5 | 88 | ||
| 100 | 150 | 275 | 240 | 5 | 84 | ||
| 150 | 175 | 265 | 230 | 4 | 81 | ||
(1) Typical values
(2) Bending 90°
(3) Maximum
Rod and bar
Temper |
Spessore (mm) |
Rm (MPa) | Rp0.2 (MPa) |
A % |
T6 |
Fino a 200 | 260 | 240 | 8 |
Physical properties
Specific gravity 2.70 g/cm3 at 20 °C
Thermal conductivity at 20 °C: 155 W/m °C
Elastic modulus: 69500 Mpa
Linear thermal expansion coefficient
Temperature °C |
10-6 mm/mm °C |
-50 > 20 |
|
20 > 100 |
23.4 |
100 > 200 |
24.3 |
200 > 300 |
25.4 |
Technological properties
Ease of cold forming: poor in T6 temper; good in 0 temper
Ease of machining: good
Ease of welding: good (TIG - MIG)