EN 573-3 AW-2024 H18 Aluminum Alloy – High Strength & Machinability for Aerospace Applications

Aluminum EN AW-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	Temperature	Value	Condition	Related Standards	Shape
Density		2.77 g/cm³	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	2.77 g/cm³	H18	EN 573-3	Wire

Mechanical

Property	Temperature	Value	Condition	Related Standards	Shape	Comment
Elastic modulus		73.0 GPa	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	70.0 - 74.5 GPa	H18	EN 573-3	Wire
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		27.4 GPa	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	27.0 - 28.0 GPa	H18	EN 573-3	Wire
Tensile strength		320.0 MPa	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	320.0 MPa	H18	EN 573-3	Wire

Thermal

Property	Temperature	Value	Condition	Related Standards	Shape
Coefficient of thermal expansion	-50 °C	2.11e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20 °C	2.11e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20 °C	2.2899999999999998e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20 °C	2.3199999999999998e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20 °C	2.38e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20 °C	2.4699999999999997e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	100 °C	2.2899999999999998e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	100 °C	2.3199999999999998e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	200 °C	2.38e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	300 °C	2.4699999999999997e-05 1/K	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Melting point		505.0 - 640.0 °C	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
		505.0 - 635.0 °C	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Specific heat capacity		875.0 J/(kg·K)	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	875.0 J/(kg·K)	H18	EN 573-3	Wire
Thermal conductivity		121.0 - 193.0 W/(m·K)	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	130.0 - 150.0 W/(m·K)	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar

Electrical

Property	Temperature	Value	Condition	Related Standards	Shape
Electrical conductivity		17000000.0 - 29000000.0 S/m	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
	20.0 °C	18000000.0 - 21000000.0 S/m	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Electrical resistivity		3.45e-08 - 5.88e-08 Ω·m	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
		4.76e-08 - 5.56e-08 Ω·m	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar

Chemical properties

Property	Value	Condition	Related Standards	Shape
Chromium	0.1 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Copper	3.8 - 4.9 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Iron	0.5 %	H18	EN 573-3	Wire
	0.50 %	H18	EN 573-3, EN 1301	Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Magnesium	1.2 - 1.8 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Manganese	0.3 - 0.9 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Silicon	0.5 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Titanium	0.15 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar
Zinc	0.25 %	H18	EN 573-3, EN 1301	Wire, Strip, Sheet, Plate, Forging, Tube, Welded Tube, Bar

Technological properties

Property
Anodizing	decorative: not suitable, Protective: good
Brazing	hard brazing (with flux/ without flux): not suitable / not suitable, friction soldering: acceptable, soft brazing with flux: not suitable
Corrosion properties	Seawater: poor, weathering: poor
Workability	Bending / Spinning (cold): sufficient (O) / acceptable (O), Impact extrusion (cold): acceptable (O), Deep drawing / upsetting (Condition) acceptable (O) / sufficient (O)

ABS Grade EH40 – High-Strength Hull Structural Steel EN 573-3 Grade AW-2024 O3 – High-Strength Aluminum Alloy for Aerospace

Metal