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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

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
  1. Round bars, drawn - diameter
  2. Square, rectangular, hexagonal bars, drawn - diameter
  3. Round bars, extruded - diameter
  4. 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)

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