Contact us How to reach us Partnership Weight Calculator
English
Version
Go to English version
Versione
Italiana
Passa alla versione Italiana

Data sheet AA2024

General properties

Aluminium-copper alloy, typical of aerospace, used also for other demanding applications,  whose main properties are high strength, high toughness, good resistance to atmospheric corrosion, good strength at elevated temperatures and good machinability. Tempers are available that cover a wide range of properties

Generally used in form of sheets, plates, rods, bars, tubes.

Ex stock the following tempers are available:

Other tempers are delivered upon request; sheets are manufactured also with cladding.

Typical applications

Structural components with demanding requirements in terms of strength and damage tolerance; parts for service temperature up to 180 °C.

Minimum mechanical properties at room temperature

Sheets and plates

Temper

Thickness (mm)

Rm (MPa)

Rp0.2 (MPa)

A %

Bending radius (1)(2)

BHN (1)

T4

0.4 1.5 425 290 12 4.0 x s 120
1.5 6.0 425 290 14 5.0 x s 120

T3

T351

0.4 1.5 435 290 12 4.0 x s 123
1.5 3.0 435 290 14 4.0 x s 123
3.0 6.0 440 290 14 5.0 x s 124
6.0 12.5 440 290 13 8.0 x s 124
12.5 40 430 290 11   122
40 80 420 290 8   120
80 100 400 2850 7   115
100 120 380 270 5   110
120 150 360 250 5   104

(1) Reference values

(2) Bending at 90°

Bars

Temper

Thickness (mm)

Rm (MPa)

Rp0.2 (MPa)

A %

T3

Up to 50 450 310 8
From 50 to 100 440 300 8
Da 100 a 200 420 280 8
Da 200 a 250 400 270 8

Tubi

Temper

Thickness (mm)

Rm (MPa)

Rp0.2 (MPa)

A %

T3

Up to 30 420 290 8

Mechanical properties at elevated and low temperature

The following graph shows ultimate strength at temperature as % of ultimate strength at room temperature, after holding at temperature for different times.

resistenza alla rottura in temperatura

Ultimate strength at temperature

The following graph shows yield strength at temperature as % of yield strength at room temperature, after holding at temperature for different times.

limite di snervamento

Physical properties

Specific gravity 2.780 g/cm3 at 20 °C

Thermal conductivity at 20 °C: 126 W/m °C

Elastic modulus: 72600 Mpa

Linear thermal expansion coefficient

Temperature °C

10-6 mm/mm °C

-50 > 20

21.1

20 > 100

22.9

100 > 200

23.8

200 > 300

24.7

Technological properties

Ease of machining: good

Ease of cold forming; poor in T3 and T4 temper; good in 0 temper

Ease of welding: poor (TIG - MIG)

Fatigue strength

The following graphs show fatigue strength in tension for various notch factors and various stress ratios, following the US data presentation tradition.

For info on symbols see section INFO Per chiarimenti sulla simbologia vedere la sezione Info.

Fatigue strength in tension

Fatigue strength in tension

Fatigue strength in tension

Powered by Antelma  -  Designed by Paolo Mandirola