EN 573-3 Grade 3.1355 T351

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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 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

PropertyValueConditionRelated Standards

Density

2.77 g/cm³

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T351

EN 573-3, EN 485, EN 754

2.78 g/cm³

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T351

EN 573-3, EN 485, EN 754

Mechanical

PropertyValueConditionRelated StandardsComment

Bending angle 180°

4.0 °/t

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EN 573-3, EN 485

5.0 °/t

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EN 573-3, EN 485

Bending angle 90°

4.0 °/t

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5.0 °/t

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EN 573-3, EN 485

8.0 °/t

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EN 573-3, EN 485

Elastic modulus

73.0 GPa

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EN 573-3, EN 485, EN 754

Hardness, Brinell

104.0 [-]

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EN 573-3, EN 485

110.0 [-]

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EN 573-3, EN 485

115.0 [-]

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EN 573-3, EN 485

120.0 [-]

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EN 573-3, EN 485

122.0 [-]

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EN 573-3, EN 485

123.0 [-]

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EN 573-3, EN 485

124.0 [-]

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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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T351

EN 573-3, EN 485, EN 754

Tensile strength

360.0 MPa

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EN 573-3, EN 485

380.0 MPa

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EN 573-3, EN 485

400.0 MPa

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EN 573-3, EN 485

420.0 MPa

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EN 573-3, EN 485

425.0 MPa

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EN 573-3, EN 754

430.0 MPa

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EN 573-3, EN 485

435.0 MPa

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EN 573-3, EN 485

440.0 MPa

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EN 573-3, EN 485

Thermal

PropertyTemperatureValueConditionRelated Standards

Coefficient of thermal expansion

-50 °C

2.11e-05 1/K

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EN 573-3, EN 485, EN 754

20 °C

2.11e-05 1/K

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T351

EN 573-3, EN 485, EN 754

20 °C

2.2899999999999998e-05 1/K

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EN 573-3, EN 485, EN 754

20 °C

2.3199999999999998e-05 1/K

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T351

EN 573-3, EN 485, EN 754

20 °C

2.38e-05 1/K

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T351

EN 573-3, EN 485, EN 754

20 °C

2.4699999999999997e-05 1/K

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EN 573-3, EN 485, EN 754

100 °C

2.2899999999999998e-05 1/K

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EN 573-3, EN 485, EN 754

100 °C

2.3199999999999998e-05 1/K

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EN 573-3, EN 485, EN 754

200 °C

2.38e-05 1/K

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EN 573-3, EN 485, EN 754

300 °C

2.4699999999999997e-05 1/K

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EN 573-3, EN 485, EN 754

Melting point

505.0 - 640.0 °C

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EN 573-3, EN 485, EN 754

505.0 - 635.0 °C

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T351

EN 573-3, EN 485, EN 754

Specific heat capacity

875.0 J/(kg·K)

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EN 573-3, EN 485, EN 754

Thermal conductivity

121.0 - 193.0 W/(m·K)

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EN 573-3, EN 485, EN 754

130.0 - 150.0 W/(m·K)

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EN 573-3, EN 485, EN 754

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

17000000.0 - 29000000.0 S/m

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EN 573-3, EN 485, EN 754

18000000.0 - 21000000.0 S/m

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EN 573-3, EN 485, EN 754

Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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EN 573-3, EN 485, EN 754

4.76e-08 - 5.56e-08 Ω·m

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EN 573-3, EN 485, EN 754

Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.1 %

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Copper

3.8 - 4.9 %

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Iron

0.50 %

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Magnesium

1.2 - 1.8 %

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Manganese

0.3 - 0.9 %

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Silicon

0.5 %

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Titanium

0.15 %

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EN 573-3, EN 485, EN 754

Zinc

0.25 %

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EN 573-3, EN 485, EN 754

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)