AA 2219 T42 Aluminum Alloy – High Strength, Versatile & Heat‑Resistant

Aluminum Alloy AA 2219, an age-hardenable alloy is produced with a copper additive. It is well-known for its excellent structural strength and it’s used for numerous high temperature applications. It is a suitable alloy for many metalworking processes including machining, forming, heat treatment, cold working, and more.

Properties

General

Property	Value	Condition	Related Standards
Density	2.84 g/cm³	T42	AA Standards

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	73.0 GPa	T42	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	360.0 MPa	T42	AA Standards

Thermal

Property	Temperature	Value	Condition	Related Standards	Comment
Coefficient of thermal expansion	20 °C	2.23e-05 1/K	T42	AA Standards
	100 °C	2.23e-05 1/K	T42	AA Standards
Melting point		545.0 - 645.0 °C	T42	AA Standards
Specific heat capacity		816.0 - 963.0 J/(kg·K)			Typical for Wrought 2000 Series Aluminium
Thermal conductivity		113.0 - 172.0 W/(m·K)	T42	AA Standards

Electrical

Property	Value	Condition	Related Standards
Electrical conductivity	16000000.0 - 26000000.0 S/m	T42	AA Standards
Electrical resistivity	3.85e-08 - 6.25e-08 Ω·m	T42	AA Standards

Chemical properties

Property	Value	Condition	Related Standards
Copper	5.8 - 6.8 %	T42	AA Standards
Iron	0.30 %	T42	AA Standards
Magnesium	0.02 %	T42	AA Standards
Manganese	0.2 - 0.4 %	T42	AA Standards
Silicon	0.2 %	T42	AA Standards
Titanium	0.02 - 0.1 %	T42	AA Standards
Vanadium	0.05 - 0.15 %	T42	AA Standards
Zinc	0.1 %	T42	AA Standards
Zirconium	0.1 - 0.25 %	T42	AA Standards

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 (T31, T351, T3510, T3511, T37), kein Schadensfall im Betrieb, eingeschränkte Schäden bei den Labortests (T81, T851, T8510, T8511), general: sufficient, in principle it should be protected
General machinability	General: good to acceptable
Workability	general (condition): poor(T31, T351, T3510, T3511), not suitable (T37, T81, T851, T8510, T8511, T87)

AA 2219 T36 Aluminum Alloy – Premium Strength & Heat Resistance AA 2219 T852 Aluminum Alloy – High-Strength, Heat‑Tolerant Grade

Metal