AA 2219 Aluminum Alloy – Grade O – High Strength, Heat‑Resistant Structural Grade
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 | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Mechanical
| Property | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|
Elastic modulus | 73.0 GPa | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 | |
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 | 170.0 MPa | O | AA Standards | |
220.0 MPa | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|---|
Coefficient of thermal expansion | 20 °C | 2.23e-05 1/K | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 | |
100 °C | 2.23e-05 1/K | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 | ||
Melting point | 545.0 - 645.0 °C | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 | ||
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) | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Electrical
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Electrical conductivity | 16000000.0 - 26000000.0 S/m | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Electrical resistivity | 3.85e-08 - 6.25e-08 Ω·m | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Copper | 5.8 - 6.8 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Iron | 0.30 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Magnesium | 0.02 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Manganese | 0.2 - 0.4 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Silicon | 0.2 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Titanium | 0.02 - 0.1 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Vanadium | 0.05 - 0.15 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Zinc | 0.1 % | O | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Zirconium | 0.1 - 0.25 % | O | AA Standards, ASTM B209, ASTM B221, 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 (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) | |
Metal
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