2219 Aluminium is a high strength alloy used in high temperature structural applications including space boosters and fuel tanks. The alloy benefits from good mechanical properties combined with good machinability. With good fracture toughness, the alloy is useful over a temperature range of -452º to 600 ºF. The T8 temper of 2219 aluminium is resistant to stress corrosion cracking.
Alloy 2219 is typically used for:
Alloy 2219
Spec: weight %
| Chemical Element | % Present |
|---|---|
| Silicon (Si) | 0.0 - 0.20 |
| Iron (Fe) | 0.0 - 0.30 |
| Copper (Cu) | 5.80 - 6.80 |
| Manganese (Mn) | 0.20 - 0.40 |
| Magnesium (Mg) | 0.0 - 0.02 |
| Zinc (Zn) | 0.0 - 0.10 |
| Titanium (Ti) | 0.02 - 0.10 |
| Vanadium (V) | 0.05 - 0.15 |
| Zinc (Zn) | 0.10 - 0.25 |
| Others | 0.05 - 0.15 |
| Aluminium (Al) | Balance |
Alloy 2219
| Property | Value |
|---|---|
| Density | 2.72 g/cm³ |
| Thermal Expansion | 23.4 x 10⁻⁶ / K |
| Modulus of Elasticity | 69 GPa |
| Thermal Conductivity | 138 W/m·K |
Imperial ksi values are converted to Metric MPa (in parentheses) for consistent rendering.
| Material / Spec | Temper | Direction / Thickness | Tensile Strength | Yield Strength | Elongation in 2" |
|---|---|---|---|---|---|
| Bar & Extrusions (AMS4162) | |||||
| 2219(AMS4162) | T8511 | L | 58 ksi (400 MPa) | 42 ksi (290 MPa) | 6 % |
| 2219(AMS4162) | T8511 | LT | 56 ksi (386 MPa) | 39 ksi (269 MPa) | 4 % |
| Sheet & Plate (bare) (QQ-A-250/30) | |||||
| 2219(QQ-A-250/30) | O | 0.020" - 2.00" | 32 max ksi (221 max MPa) | 16 max ksi (110 max MPa) | 12 % |
| 2219(QQ-A-250/30) | T351 | 0.250" - 2.00" | 46 ksi (317 MPa) | 28 ksi (193 MPa) | 10 % |
| 2219(QQ-A-250/30) | T351 | 0.250" - 2.00" | 62 ksi (427 MPa) | 46 ksi (317 MPa) | 7 - 8 % |
| Sheet & Plate (Clad) (AMS4094) | |||||
| 2219(AMS4094) | T81/T851 | 0.020" - 0.039" | 49 ksi (338 MPa) | 37 ksi (255 MPa) | 6 % |
| 2219(AMS4094) | T81/T851 | 0.039" - 0.099" | 55 ksi (379 MPa) | 41 ksi (283 MPa) | 7 % |
| 2219(AMS4094) | T81/T851 | 0.099" - 0.249" | 58 ksi (400 MPa) | 43 ksi (296 MPa) | 7 % |
| 2219(AMS4094) | T81/T851 | 0.249" - 0.499" | 58 ksi (400 MPa) | 42 ksi (290 MPa) | 8 % |
Alloy 2219 corresponds to the following related specifications:
Alloy 2219 is readily weldable.
