AA 2219 T6: Premium Strength Aluminum Alloy for High-Temperature Applications

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	T6	AA Standards, ASTM B247, ASTM B316
	3.1 g/cm³	T6

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	73.0 GPa	T6	AA Standards, ASTM B247, ASTM B316
	74.0 GPa	T6
Elongation	1.0 %	T6	AA Standards, ASTM B247	A100
	2.0 %	T6	AA Standards, ASTM B247	A50
	3.0 %	T6	AA Standards, ASTM B247	A100
	4.0 %	T6	AA Standards, ASTM B247	A50
	5.0 %	T6	AA Standards, ASTM B247, ASTM B316	A100
	5.5 %	T6
	6.0 %	T6	AA Standards, ASTM B247	A50
	7.0 %	T6	AA Standards, ASTM B247	A100
	8.0 %	T6	AA Standards, ASTM B247	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	365.0 MPa	T6	AA Standards, ASTM B247
	380.0 MPa	T6	AA Standards, ASTM B247, ASTM B316
	385.0 MPa	T6	AA Standards, ASTM B247
	400.0 MPa	T6	AA Standards, ASTM B247
	430.0 MPa	T6
Yield strength	240.0 MPa	T6	AA Standards, ASTM B247, ASTM B316	RP02
	250.0 MPa	T6	AA Standards, ASTM B247	RP02
	255.0 MPa	T6	AA Standards, ASTM B247	RP02
	260.0 MPa	T6	AA Standards, ASTM B247	RP02
	275.0 MPa	T6	AA Standards, ASTM B247	RP02
	280.0 MPa	T6

Thermal

Property	Temperature	Value	Condition	Related Standards
Coefficient of thermal expansion		2.2e-05 1/K	T6
	20 °C	2.23e-05 1/K	T6	AA Standards, ASTM B247, ASTM B316
	100 °C	2.23e-05 1/K	T6	AA Standards, ASTM B247, ASTM B316
Melting point		540.0 °C	T6
		545.0 - 645.0 °C	T6	AA Standards, ASTM B247, ASTM B316
Specific heat capacity		860.0 J/(kg·K)	T6
Thermal conductivity		113.0 - 172.0 W/(m·K)	T6	AA Standards, ASTM B247, ASTM B316
		120.0 W/(m·K)	T6

Electrical

Property	Value	Condition	Related Standards	Comment
Electrical conductivity	16000000.0 - 26000000.0 S/m	T6	AA Standards, ASTM B247, ASTM B316
	17000000 S/m	T6		Typical value
Electrical resistivity	3.85e-08 - 6.25e-08 Ω·m	T6	AA Standards, ASTM B247, ASTM B316
	5.8999999999999986e-08 Ω·m	T6		Typical value
Specific Electrical conductivity	29.0 % IACS	T6		Typical/Derived value

Chemical properties

Property	Value	Condition	Related Standards
Aluminium	91.5 - 93.8 %	T6
Copper	5.8 - 6.8 %	T6	AA Standards, ASTM B247, ASTM B316
Iron	0.30 %	T6	AA Standards, ASTM B247, ASTM B316
	0.3 %	T6
Magnesium	0.02 %	T6	AA Standards, ASTM B247, ASTM B316
Manganese	0.2 - 0.4 %	T6	AA Standards, ASTM B247, ASTM B316
Other	0.15 %	T6
Silicon	0.2 %	T6	AA Standards, ASTM B247, ASTM B316
Titanium	0.02 - 0.1 %	T6	AA Standards, ASTM B247, ASTM B316
Vanadium	0.05 - 0.15 %	T6	AA Standards, ASTM B247, ASTM B316
Zinc	0.1 %	T6	AA Standards, ASTM B247, ASTM B316
Zirconium	0.1 - 0.25 %	T6	AA Standards, ASTM B247, ASTM B316

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 2024 T6 Aluminum: Aircraft-Grade Strength, Superior Machinability, and Fine Finish UGI® 4545 AIR: High-Strength, Fatigue-Resistant Aerospace Grade Stainless Steel

Metal