AA Standards Grade 2024 T4

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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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T4

AA Standards, ASTM B209, ASTM B211

Mechanical

PropertyValueConditionRelated StandardsComment

Bending Fatigue Strength

140.0 MPa

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T4

AA Standards

Elastic modulus

73.0 GPa

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T4

AA Standards, ASTM B209, ASTM B211

Hardness, Brinell

120.0 [-]

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T4

AA Standards

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

472.0 MPa

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T4

AA Standards

425.0 MPa

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T4

AA Standards, ASTM B209, ASTM B211

Thermal

PropertyTemperatureValueConditionRelated StandardsComment

Coefficient of thermal expansion

100 °C, 20 °C

2.3199999999999998e-05 1/K

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T4

AA Standards, ASTM B209, ASTM B211

Melting point

505.0 - 635.0 °C

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T4

AA Standards, ASTM B209, ASTM B211

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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T4

AA Standards, ASTM B209, ASTM B211

Electrical

PropertyValueConditionRelated Standards

Electrical conductivity

17000000.0 - 29000000.0 S/m

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T4

AA Standards, ASTM B209, ASTM B211

Electrical resistivity

3.45e-08 - 5.88e-08 Ω·m

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T4

AA Standards, ASTM B209, ASTM B211

Chemical properties

PropertyValueConditionRelated Standards

Chromium

0.1 %

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T4

AA Standards, ASTM B209, ASTM B211

Copper

3.8 - 4.9 %

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T4

AA Standards, ASTM B209, ASTM B211

Iron

0.50 %

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T4

AA Standards, ASTM B209, ASTM B211

Magnesium

1.2 - 1.8 %

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T4

AA Standards, ASTM B209, ASTM B211

Manganese

0.3 - 0.9 %

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T4

AA Standards, ASTM B209, ASTM B211

Silicon

0.5 %

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T4

AA Standards, ASTM B209, ASTM B211

Titanium

0.15 %

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T4

AA Standards, ASTM B209, ASTM B211

Zinc

0.25 %

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T4

AA Standards, ASTM B209, ASTM B211

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)