EN 573-3 Grade 3.1655 T6

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Description

Aluminum DIN 3.1655 is a popular age-hardenable alloy known for its free-machining characteristics and mechanical properties. It can be machined to very close tolerances while still maintaining a smooth and bright finish. Unlike other aluminum alloys, DIN 3.1655 does not offer good corrosion resistance or weldability.

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

2.82 g/cm³

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EN 573-3, EN 755

2.83 g/cm³

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EN 573-3, EN 755

Mechanical

PropertyValueConditionRelated StandardsComment

Bending Fatigue Strength

125.0 MPa

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EN 573-3, EN 755

Elastic modulus

70.0 GPa

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EN 573-3, EN 755

72.5 GPa

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EN 573-3, EN 755

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

27.3 GPa

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EN 573-3, EN 755

Tensile strength

295.0 MPa

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EN 573-3, EN 755

310.0 MPa

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EN 573-3, EN 755

Thermal

PropertyTemperatureValueConditionRelated Standards

Coefficient of thermal expansion

-50 °C

2.14e-05 1/K

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EN 573-3, EN 755

20 °C

2.14e-05 1/K

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EN 573-3, EN 755

20 °C

2.2899999999999998e-05 1/K

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EN 573-3, EN 755

20 °C

2.3399999999999996e-05 1/K

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EN 573-3, EN 755

20 °C

2.4e-05 1/K

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EN 573-3, EN 755

20 °C

2.4999999999999998e-05 1/K

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EN 573-3, EN 755

100 °C

2.2899999999999998e-05 1/K

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EN 573-3, EN 755

100 °C

2.3399999999999996e-05 1/K

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EN 573-3, EN 755

200 °C

2.4e-05 1/K

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EN 573-3, EN 755

300 °C

2.4999999999999998e-05 1/K

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EN 573-3, EN 755

Melting point

540.0 - 645.0 °C

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EN 573-3, EN 755

585.0 - 650.0 °C

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EN 573-3, EN 755

Specific heat capacity

864.0 J/(kg·K)

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EN 573-3, EN 755

Thermal conductivity

151.0 - 172.0 W/(m·K)

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EN 573-3, EN 755

170.0 - 220.0 W/(m·K)

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EN 573-3, EN 755

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

23000000.0 - 26000000.0 S/m

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EN 573-3, EN 755

24000000.0 - 32000000.0 S/m

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EN 573-3, EN 755

Electrical resistivity

3.13e-08 - 4.17e-08 Ω·m

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EN 573-3, EN 755

3.85e-08 - 4.35e-08 Ω·m

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EN 573-3, EN 755

Chemical properties

PropertyValueConditionRelated Standards

Bismuth

0.2 - 0.8 %

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EN 573-3, EN 755

Copper

5.0 - 6.0 %

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EN 573-3, EN 755

Iron

0.70 %

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EN 573-3, EN 755

Lead

0.2 - 0.6 %

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EN 573-3, EN 755

Silicon

0.4 %

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EN 573-3, EN 755

Zinc

0.3 %

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EN 573-3, EN 755

Technological properties

Property
Anodizing

decorative: not suitable, Protective: poor

Brazing

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

Corrosion properties

Seawater: poor, weathering: sufficient

Workability

Deep drawing / upsetting (Condition) - / acceptable