AA 2219 Aluminum Alloy
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Family: Aluminum Alloy
Copper Alloy (Al-Cu). AA designation 2219.
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Tensile Strength | 403.0 MPa |
| Yield Strength | 274.6 MPa |
| Elongation | 10.5% |
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| V | 0,09 |
| Al | 93,474 |
| Cr | 0,14 |
| Cu | 6,3 |
| Fe | 0,2 |
| Mg | 0,02 |
| Mn | 0,3 |
| Ni | 0,03 |
| Pb | 0,01 |
| Sc | 0,4 |
| Si | 0,2 |
| Ti | 0,06 |
| Zn | 0,04 |
| Zr | 0,175 |
Where to Buy AA 2219 Aluminum Alloy
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Description
AA 2219 is a high-purity aluminum-copper alloy (5.8–6.8% Cu) with additions of manganese, zirconium, and titanium, known for exceptional performance at both elevated temperatures and cryogenic conditions. It maintains strength and toughness from −270°C to 315°C and is weldable unlike most 2xxx alloys. Primary applications include rocket fuel tanks, aircraft skin, and structural components operating at extreme temperatures.