AA Standards Grade 2024 T861

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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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T861

AA Standards, ASTM B209

Mechanical

PropertyTemperatureValueConditionRelated StandardsComment

Elastic modulus

73.0 GPa

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T861

AA Standards, ASTM B209

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Elongation A100

23.0 °C

3 %

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Elongation A50

23.0 °C

3 - 4 %

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Plane-Strain Fracture Toughnes

22.0 - 35.0 MPa·√m

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Typical for Wrought 2000 Series Aluminium

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Poisson's ratio

0.33 [-]

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Typical for Wrought 2000 Series Aluminium

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Shear modulus

26.0 - 27.5 GPa

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Typical for Wrought 2000 Series Aluminium

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Tensile strength

490.0 MPa

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T861

AA Standards, ASTM B209

480.0 MPa

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T861

AA Standards, ASTM B209

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Yield strength Rp0.2

23.0 °C

425 - 440 MPa

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Thermal

PropertyTemperatureValueConditionRelated StandardsComment

Coefficient of thermal expansion

100 °C, 20 °C

2.3199999999999998e-05 1/K

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T861

AA Standards, ASTM B209

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Melting point

505.0 - 635.0 °C

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T861

AA Standards, ASTM B209

Specific heat capacity

816.0 - 963.0 J/(kg·K)

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Typical for Wrought 2000 Series Aluminium

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Thermal conductivity

121.0 - 193.0 W/(m·K)

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T861

AA Standards, ASTM B209

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Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

17000000.0 - 29000000.0 S/m

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T861

AA Standards, ASTM B209

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Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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T861

AA Standards, ASTM B209

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Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.1 %

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T861

AA Standards, ASTM B209

Copper

3.8 - 4.9 %

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T861

AA Standards, ASTM B209

Iron

0.50 %

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T861

AA Standards, ASTM B209

Magnesium

1.2 - 1.8 %

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T861

AA Standards, ASTM B209

Manganese

0.3 - 0.9 %

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T861

AA Standards, ASTM B209

Other

each 0.05, total 0.15, Rest Al

Silicon

0.5 %

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T861

AA Standards, ASTM B209

Titanium

0.15 %

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T861

AA Standards, ASTM B209

Zinc

0.25 %

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T861

AA Standards, ASTM B209

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)