DIN 1725-1 Grade 3.1355 T3

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Description

Aluminum DIN 3.1355, known for its use in aircraft industry, is an alloy that offers excellent strength. When in the annealed condition it is readily formed and has good machinability. Though it has a relatively low level of corrosion resistance, it can be machined to a high finish.

Related Standards

Equivalent Materials

This material data has been provided by WIAM,AluKey.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValueConditionRelated StandardsShape

Density

2.77 g/cm³

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T3

EN 573-3, EN 485, EN 754, EN 755

2.78 g/cm³

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

2.77 g/cm³

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T3

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Sheet, Strip, Tube, Wire

Mechanical

PropertyTemperatureValueConditionRelated StandardsShapeComment

Bending Fatigue Strength

140.0 MPa

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T3

EN 573-3, EN 485, EN 754, EN 755

Bending angle 180°

4.0 °/t

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T3

EN 573-3, EN 485

5.0 °/t

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T3

EN 573-3, EN 485

Bending angle 90°

4.0 °/t

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T3

EN 573-3, EN 485

5.0 °/t

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T3

EN 573-3, EN 485

8.0 °/t

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T3

EN 573-3, EN 485

Elastic modulus

73.0 GPa

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

70.0 - 74.5 GPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

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Elongation

6.0 %

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T3

EN 573-3, EN 755

A50

7.0 %

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T3

EN 573-3, EN 754

A50

8.0 %

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T3

EN 573-3, EN 755

A100

8.0 %

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T3

EN 573-3, EN 754

A50

9.0 %

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T3

EN 573-3, EN 754

A100

10.0 %

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T3

EN 573-3, EN 754

A100

12.0 %

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T3

EN 573-3, EN 485

A50

13.0 %

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T3

EN 573-3, EN 485

A50

14.0 %

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T3

EN 573-3, EN 485

A50

20.0 °C

2.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Wire

A100

20.0 °C

6.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod, Wire

A10

20.0 °C

6.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

8.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

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A10

20.0 °C

8.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

9.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Tube

A10

20.0 °C

10.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Profile, Rod, Tube

20.0 °C

11.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Sheet, Strip

A10

20.0 °C

11.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Tube

20.0 °C

13.0 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

Sheet, Strip

Hardness, Brinell

123.0 [-]

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T3

EN 573-3, EN 485

124.0 [-]

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T3

EN 573-3, EN 485

20.0 °C

105.0 [-]

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

110.0 [-]

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T3

DIN 1725-1, EN 573-3, EN 573-4

Sheet, Strip

20.0 °C

115.0 [-]

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

120.0 [-]

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T3

DIN 1725-1, EN 573-3, EN 573-4

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20.0 °C

125.0 [-]

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T3

DIN 1725-1, EN 573-3, EN 573-4

Wire

Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 2000 Series Aluminium

Poisson's ratio

0.33 [-]

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Typical for Wrought 2000 Series Aluminium

Shear modulus

27.4 GPa

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

27.0 - 28.0 GPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

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Tensile strength

395.0 MPa

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T3

EN 573-3, EN 755

400.0 MPa

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T3

EN 573-3, EN 755

420.0 MPa

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T3

EN 573-3, EN 754, EN 755

425.0 MPa

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T3

EN 573-3, EN 754

435.0 MPa

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T3

EN 573-3, EN 485

440.0 MPa

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T3

EN 573-3, EN 485, EN 754, EN 755

450.0 MPa

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T3

EN 573-3, EN 755

20.0 °C

400.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

410.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Tube

20.0 °C

420.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Tube

20.0 °C

430.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Tube

20.0 °C

440.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

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20.0 °C

470.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Rod

20.0 °C

480.0 MPa

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T3

DIN 1725-1, EN 573-3, EN 573-4

Wire

Thermal

PropertyTemperatureValueConditionRelated StandardsShape

Coefficient of thermal expansion

-50 °C

2.11e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

20 °C

2.11e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

20 °C

2.2899999999999998e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

20 °C

2.3199999999999998e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

20 °C

2.38e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

20 °C

2.4699999999999997e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

100 °C

2.2899999999999998e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

100 °C

2.3199999999999998e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

200 °C

2.38e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

300 °C

2.4699999999999997e-05 1/K

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T3

EN 573-3, EN 485, EN 754, EN 755

Melting point

505.0 - 640.0 °C

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T3

EN 573-3, EN 485, EN 754, EN 755

505.0 - 635.0 °C

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T3

EN 573-3, EN 485, EN 754, EN 755

Specific heat capacity

875.0 J/(kg·K)

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

875.0 J/(kg·K)

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T3

DIN 1725-1, EN 573-3, EN 573-4

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Thermal conductivity

121.0 - 193.0 W/(m·K)

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

130.0 - 150.0 W/(m·K)

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Electrical

PropertyTemperatureValueConditionRelated StandardsShape

Electrical conductivity

17000000.0 - 29000000.0 S/m

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T3

EN 573-3, EN 485, EN 754, EN 755

20.0 °C

18000000.0 - 21000000.0 S/m

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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T3

EN 573-3, EN 485, EN 754, EN 755

4.76e-08 - 5.56e-08 Ω·m

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T3

EN 573-3, EN 485, EN 754, EN 755

Chemical properties

PropertyValueConditionRelated StandardsShape

Chromium

0.1 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Copper

3.8 - 4.9 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Iron

0.5 %

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T3

DIN 1725-1, EN 573-3, EN 573-4

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0.50 %

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T3

EN 573-3, EN 485, EN 754, EN 755

Magnesium

1.2 - 1.8 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Manganese

0.3 - 0.9 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Silicon

0.5 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Titanium

0.15 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

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Zinc

0.25 %

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T3

DIN 1725-1, EN 573-3, EN 573-4, EN 485, EN 754, EN 755

Profile, Rod, Sheet, Strip, Tube, Wire

Technological properties

Property
Anodizing

decorative: not suitable, Protective: good

Brazing

hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable

Corrosion properties

Seawater: poor, weathering: poor

Workability

Bending / Spinning (cold): sufficient (O) / acceptable (O), Impact extrusion (cold): acceptable (O), Deep drawing / upsetting (Condition) acceptable (O) / sufficient (O)