ASTM B211 2024‑T4 Aluminum Alloy – High Strength for Aerospace Applications

Aluminum ASTM 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	Comment
Density	2.75 - 2.84 g/cm³	Typical for Wrought 2000 Series Aluminium

Mechanical

Property	Value	Condition	Related Standards	Shape	Comment
Elastic modulus	70.0 - 73.0 GPa				Typical for Wrought 2000 Series Aluminium
Elongation	9.0 %	T4	ASTM B211	Bar, Rod, Wire
	10.0 %	T4	ASTM B211	Bar, Rod, Wire	A50
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	425.0 MPa	T4	ASTM B211	Bar, Rod, Wire

Thermal

Property	Value	Comment
Coefficient of thermal expansion	1.6e-05 - 2.4e-05 1/K	Typical for Wrought 2000 Series Aluminium
Melting point	500.0 - 650.0 °C	Typical for Wrought 2000 Series Aluminium
Specific heat capacity	816.0 - 963.0 J/(kg·K)	Typical for Wrought 2000 Series Aluminium
Thermal conductivity	112.0 - 251.0 W/(m·K)	Typical for Wrought 2000 Series Aluminium

Electrical

Property	Value	Comment
Electrical conductivity	18000000.0 - 30000000.0 S/m	Typical for Wrought 2000 Series Aluminium
Electrical resistivity	3.4e-08 - 6e-08 Ω·m	Typical for Wrought 2000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.1	T4	ASTM B211	Bar, Rod, Wire
Copper	3.8 - 4.9 %	T4	ASTM B211	Bar, Rod, Wire
Iron	0.5	T4	ASTM B211	Bar, Rod, Wire
Magnesium	1.2 - 1.8 %	T4	ASTM B211	Bar, Rod, Wire
Manganese	0.3 - 0.9 %	T4	ASTM B211	Bar, Rod, Wire
Silicon	0.5	T4	ASTM B211	Bar, Rod, Wire
Titanium	0.15	T4	ASTM B211	Bar, Rod, Wire
Zinc	0.25	T4	ASTM B211	Bar, Rod, Wire

Technological properties

Property
Workability	Moderate Workability

Property

Workability

Moderate Workability

ASTM B211 Grade 2017 Aluminum Alloys (T4, T42, T451) – Strength, Ductility & Machinability ASTM B211 Grade 2024 T42 Aluminum Alloy – High Strength & Machinability

Metal