AA 2219 T81 Aluminum Alloy: Superior Strength 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 | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Mechanical
| Property | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|
Bending Fatigue Strength | 105.0 MPa | T81 | AA Standards | |
Elastic modulus | 73.0 GPa | T81 | 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 | 400.0 MPa | T81 | AA Standards, ASTM B221, ASTM B241 | |
425.0 MPa | T81 | AA Standards, ASTM B209 | ||
455.0 MPa | T81 | AA Standards |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Comment |
|---|---|---|---|---|---|
Coefficient of thermal expansion | 20 °C | 2.23e-05 1/K | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 | |
100 °C | 2.23e-05 1/K | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 | ||
Melting point | 545.0 - 645.0 °C | T81 | 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) | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Electrical
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Electrical conductivity | 16000000.0 - 26000000.0 S/m | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Electrical resistivity | 3.85e-08 - 6.25e-08 Ω·m | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Chemical properties
| Property | Value | Condition | Related Standards |
|---|---|---|---|
Copper | 5.8 - 6.8 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Iron | 0.30 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Magnesium | 0.02 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Manganese | 0.2 - 0.4 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Silicon | 0.2 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Titanium | 0.02 - 0.1 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Vanadium | 0.05 - 0.15 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Zinc | 0.1 % | T81 | AA Standards, ASTM B209, ASTM B221, ASTM B241 |
Zirconium | 0.1 - 0.25 % | T81 | 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
- AA 2219 H13 Aluminum Alloy: Premium Grade for High-Performance Applications
- AA Grade 5456 O Aluminum Standard – Key Mechanical Properties
- AA 5083-O Aluminum Alloy Standard – High Strength & Corrosion Resistance
- AA 2219 T3510 – Aluminum Alloy Standard & Properties
- AA 2219 T8510: Premium Aluminum Alloy for High-Performance Applications
- AA 2219 T8511: Premium Copper-Enhanced Aluminum Alloy for High-Strength Applications
- AA 2219 T31 Aluminum Alloy – High Strength, Age‑Hardenable for High‑Temperature Applications
- AA 2219 Aluminum Alloy – Grade O – High Strength, Heat‑Resistant Structural Grade
- AA 2219 T62 Aluminum Alloy: High Strength & Versatility for Advanced Applications
- AA 2219 T6: Premium Strength Aluminum Alloy for High-Temperature Applications