Data sheet AA5083
General properties
Aluminium-magnesium alloy, general purpose, whose main properties are high resistance to oxidation and corrosion in general; mechanical strength is not very high, cold formability is good; fusion weldable.
This alloy shows very good toughness both at room temperature and at low temperatures.
Generally used in form of sheet, plate, but also, seldom, rods and bars.
Ex stock the following tempers are available
- 0/H111 (maximum formability)
- H22 (trade off between formability and strength)
Other tempers can be delivered on demand.
Typical applications
Skins, pressure vessels, tanks and trucks, shipbuilding, plates, wheels, cryogenic applications, miscellaneous mechanical parts and tooling, applications for which moderate static strength and good fatigue strength are required.
Parts to be embodied into welded structures.
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/H111 | 0.5 | 1.5 | 275 | 125 | 12 | 1.0 x s | 75 |
| 1.5 | 3.0 | 275 | 125 | 13 | 1.0 x s | 75 | |
| 3.0 | 6.0 | 275 | 125 | 15 | 1.5 x s | 75 | |
| 6.0 | 12.5 | 275 | 125 | 16 | 2.5 x s | 75 | |
| 12.5 | 50 | 275 | 125 | 15 | 75 | ||
| 50 | 80 | 270 | 115 | 14 | 73 | ||
| 80 | 120 | 260 | 110 | 12 | 70 | ||
| 120 | 150 | 255 | 105 | 12 | 69 | ||
| H22 | 0.5 | 1.5 | 305 | 215 | 6 | 1.5 x s | 89 |
| 1.5 | 3.0 | 305 | 215 | 7 | 2.0 x s | 89 | |
| 3.0 | 6.0 | 305 | 215 | 8 | 2.5 x s | 89 | |
| 6.0 | 12.5 | 305 | 215 | 10 | 3.5 x s | 89 | |
(1) Typical values
(2) Bending 90°
Rod and bar
Temper |
Thickness (mm) |
Rm (MPa) | Rp0.2 (MPa) |
A % |
|
0/H111 |
Up to 80 (1) | Up to 60 (2) | 270 | 110 | 16 |
| Up to 200 (3) | Up to 200 (4) | 270 | 110 | 12 | |
- Round bars, drawn - diameter
- Square, rectangular, hexagonal bars, drawn - diameter
- Round bars, extruded - diameter
- Square, rectangular, hexagonal bars, extruded - diameter
Physical properties
Specific gravity 2.660 g/cm3 at 20 °C
Thermal conductivity at 20 °C: 117 W/m °C
Specific heat at 20 °C: 0.250 Cal/kg °C
Elastic modulus: 69500 Mpa
Linear thermal expansion coefficient
Temperature °C |
10-6 mm/mm °C |
-50 > 20 |
22.3 |
20 > 100 |
24.2 |
100 > 200 |
25.0 |
200 > 300 |
26.0 |
Technological properties
Ease of cold forming: very good in temper 0/H111
Ease of machining: good
Ease of welding: good (TIG - MIG)