AA 2024 T3 Aluminum Alloy – Aircraft-Grade Strength & ASTM Standards

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	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241

Mechanical

Property	Value	Condition	Related Standards	Comment
Bending Fatigue Strength	140.0 MPa	T3	AA Standards
Elastic modulus	73.0 GPa	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Hardness, Brinell	120.0 [-]	T3	AA Standards
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	395.0 MPa	T3	AA Standards, ASTM B241
	415.0 MPa	T3	AA Standards, ASTM B241
	435.0 MPa	T3	AA Standards, ASTM B209
	440.0 MPa	T3	AA Standards, ASTM B210
	450.0 MPa	T3	AA Standards, ASTM B241
	470.0 MPa	T3	AA Standards, ASTM B241
	485.0 MPa	T3	AA Standards

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.3199999999999998e-05 1/K	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
	100 °C	2.3199999999999998e-05 1/K	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Melting point		505.0 - 635.0 °C	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
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)	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	17000000.0 - 29000000.0 S/m	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Electrical resistivity	3.45e-08 - 5.88e-08 Ω·m	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241

Chemical properties

Property	Value	Condition	Related Standards
Chromium	0.1 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Copper	3.8 - 4.9 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Iron	0.50 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Magnesium	1.2 - 1.8 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Manganese	0.3 - 0.9 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Silicon	0.5 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Titanium	0.15 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241
Zinc	0.25 %	T3	AA Standards, ASTM B209, ASTM B210, ASTM B241

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 2017 T451 Aluminum Alloy – Heat‑Treatable Grade with Superior Strength & Machinability AA 3003 Aluminum Alloy – Premium Grade H12 for Superior Corrosion Resistance

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