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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:

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

  1. Round bars - diameter
  2. 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)

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