AA 2024 T62 Alloy: High-Strength, Machinable Aluminum for Aerospace

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.

Properties

General

Property	Value	Condition	Related Standards
Density	2.78 g/cm³	T62	AA Standards, ASTM B209, ASTM B211

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	73.0 GPa	T62	AA Standards, ASTM B209, ASTM B211
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 2000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 2000 Series Aluminium
Shear modulus	26.0 - 27.5 GPa			Typical for Wrought 2000 Series Aluminium
Tensile strength	415.0 MPa	T62	AA Standards, ASTM B211
	435.0 MPa	T62	AA Standards, ASTM B209
	440.0 MPa	T62	AA Standards, ASTM B209

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.3199999999999998e-05 1/K	T62	AA Standards, ASTM B209, ASTM B211
	100 °C	2.3199999999999998e-05 1/K	T62	AA Standards, ASTM B209, ASTM B211
Melting point		505.0 - 635.0 °C	T62	AA Standards, ASTM B209, ASTM B211
Specific heat capacity		816.0 - 963.0 J/(kg·K)			Typical for Wrought 2000 Series Aluminium
Thermal conductivity		121.0 - 193.0 W/(m·K)	T62	AA Standards, ASTM B209, ASTM B211

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	17000000.0 - 29000000.0 S/m	T62	AA Standards, ASTM B209, ASTM B211
Electrical resistivity	3.45e-08 - 5.88e-08 Ω·m	T62	AA Standards, ASTM B209, ASTM B211

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.1 %	T62	AA Standards, ASTM B209, ASTM B211
Copper	3.8 - 4.9 %	T62	AA Standards, ASTM B209, ASTM B211
Iron	0.50 %	T62	AA Standards, ASTM B209, ASTM B211
Magnesium	1.2 - 1.8 %	T62	AA Standards, ASTM B209, ASTM B211
Manganese	0.3 - 0.9 %	T62	AA Standards, ASTM B209, ASTM B211
Silicon	0.5 %	T62	AA Standards, ASTM B209, ASTM B211
Titanium	0.15 %	T62	AA Standards, ASTM B209, ASTM B211
Zinc	0.25 %	T62	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)

AA 2024 Grade T361 Aluminum Alloy: Standards, Properties & Applications AA 2024 T8510: High‑Strength Aluminum Alloy for Aerospace

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