EN 573-3 Grade 3.4365 T81

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Description

DIN 3.4365 is a high-strength alloy that offers good stress-corrosion cracking resistance. Known as a mainstay in the aerospace industry since it was introduced, Aluminum 7075 brings moderate toughness as well as an excellent strength-to-weight ratio. It is also important to note that at sub-zero temperatures Aluminum 7075 increases in strength.

Related Standards

Equivalent Materials

This material data has been provided by AluKey.

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

2.8 g/cm³

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EN 573-3, EN 1592

Mechanical

PropertyValueConditionRelated StandardsComment

Elastic modulus

72.0 GPa

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EN 573-3, EN 1592

Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 7000 Series Aluminium

Poisson's ratio

0.33 [-]

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Typical for Wrought 7000 Series Aluminium

Shear modulus

27.1 GPa

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EN 573-3, EN 1592

Tensile strength

550.0 MPa

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EN 573-3, EN 1592

Thermal

PropertyTemperatureValueConditionRelated Standards

Coefficient of thermal expansion

300 °C, 20 °C

2.52e-05 1/K

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EN 573-3, EN 1592

200 °C, 20 °C

2.43e-05 1/K

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EN 573-3, EN 1592

100 °C, 20 °C

2.3399999999999996e-05 1/K

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EN 573-3, EN 1592

20 °C, -50 °C

2.16e-05 1/K

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EN 573-3, EN 1592

Melting point

480.0 - 640.0 °C

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EN 573-3, EN 1592

Specific heat capacity

862.0 J/(kg·K)

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EN 573-3, EN 1592

Thermal conductivity

130.0 - 160.0 W/(m·K)

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EN 573-3, EN 1592

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

19000000.0 - 23000000.0 S/m

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EN 573-3, EN 1592

Electrical resistivity

4.35e-08 - 5.26e-08 Ω·m

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EN 573-3, EN 1592

Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.18 - 0.28 %

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EN 573-3, EN 1592

Copper

1.2 - 2.0 %

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EN 573-3, EN 1592

Iron

0.50 %

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EN 573-3, EN 1592

Magnesium

2.1 - 2.9 %

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EN 573-3, EN 1592

Manganese

0.3 %

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EN 573-3, EN 1592

Silicon

0.4 %

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EN 573-3, EN 1592

Titanium

0.2 %

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EN 573-3, EN 1592

Zinc

5.1 - 6.1 %

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EN 573-3, EN 1592

Technological properties

Property
Anodizing

decorative: not suitable, Protective: acceptable

Brazing

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

Corrosion properties

Seawater: sufficient to poor, weathering: sufficient to poor

Workability

Bending / Spinning (cold): sufficient (O) / not suitable, Impact extrusion (cold): not suitable, Deep drawing / upsetting (Condition) not suitable / not suitable