AA Standards Grade 2024 T42

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Description

Aluminum AA 2024, 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.

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

2.78 g/cm³

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Mechanical

PropertyValueConditionRelated StandardsComment

Elastic modulus

73.0 GPa

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

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

26.0 - 27.5 GPa

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Typical for Wrought 2000 Series Aluminium

Tensile strength

400.0 MPa

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T42

AA Standards, ASTM B209, ASTM B211

425.0 MPa

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T42

AA Standards, ASTM B209, ASTM B211, ASTM B316

415.0 MPa

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T42

AA Standards, ASTM B209

420.0 MPa

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T42

AA Standards, ASTM B209

440.0 MPa

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T42

AA Standards, ASTM B210

395.0 MPa

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T42

AA Standards, ASTM B241

Thermal

PropertyTemperatureValueConditionRelated StandardsComment

Coefficient of thermal expansion

100 °C, 20 °C

2.3199999999999998e-05 1/K

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Melting point

505.0 - 635.0 °C

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Specific heat capacity

816.0 - 963.0 J/(kg·K)

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Typical for Wrought 2000 Series Aluminium

Thermal conductivity

121.0 - 193.0 W/(m·K)

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

17000000.0 - 29000000.0 S/m

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.1 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Copper

3.8 - 4.9 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Iron

0.50 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Magnesium

1.2 - 1.8 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Manganese

0.3 - 0.9 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Silicon

0.5 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Titanium

0.15 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Zinc

0.25 %

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T42

AA Standards, ASTM B209, ASTM B210, ASTM B211, ASTM B241, ASTM B316

Technological properties

Property
Brazing

general: no brazing is known or developed

Corrosion properties

Stress corrosion cracking: Betriebsschäden in Gebieten mit Zugspannungen quer zur Kornstruktur, Eingeschränkte Schäden an Laborproben (T4,T3, T351, T3510, T3511), d (T6, T861, T81, T851, T8510, T8511), general: sufficient, in principle it should be protected

General machinability

General: poor (O), good to acceptable

Workability

general (condition): poor(T4, T3, T351, T3510, T3511, T6), not suitable (T361, T861, T81, T851, T8510, T8511)