SPACE 2009
Quality Policy
AS 9120
Dalle
Tôle
Barre ronde
Tube/ Extrusion/ Profil
2219
AMS 4066 / AlCu6Mn / 2219 / T851
| Chemical Properties | % Value |
| Silicon (Si) | 0,00 - 0,20 |
| Manganese (Mn) | 0,20 - 0,40 |
| Magnesium (Mg) | 0,00 - 0,02 |
| Copper (Cu) | 5,80 - 6,80 |
| Titanium (Ti) | 0,02 - 0,10 |
| Iron (Fe) | 0,00 - 0,30 |
| Zinc (Zn) | 0,00 - 0,10 |
| Aluminium (Al) | Balance |
| Physical Properties | Value |
| Density | 2.85 g/cm³ |
| Melting Point | 543 °C |
| Thermal Expansion | 22.5 µm/m.°C |
| Modulus of Elasticity | 74 GPa |
| Thermal Conductivity | 120 W/m.K |
| Electrical Resistivity | %30 IACS |
| Mechanical Properties | Value |
| Proof Strength | 350 MPa |
| Yield Strength | 455 MPa |
| Shear Strength | 285 MPa |
| Elongation A50 mm | 8% |
| Hardness | 130 HB |
The 2219 T851 aluminum alloy is known for its high strength and excellent durability. Belonging to the aluminum-copper alloy class, it is particularly used in high-performance industries such as aerospace, space, and military applications. The T851 temper, which involves a specific heat treatment process, enhances the alloy’s strength and stress resistance. This allows it to perform reliably under demanding conditions, offering a high strength-to-weight ratio along with lightweight properties.
The 2219 T851 alloy has limited suitability for anodizing. Its high copper content prevents the formation of a strong oxide layer during anodizing. Therefore, it is generally protected with alternative coating methods instead of anodizing. In terms of weldability, the 2219 T851 alloy requires careful attention due to its high copper content. This increases the risk of cracking during welding, so special welding techniques and appropriate filler materials must be used to minimize this risk.
Regarding bending and forming, the 2219 T851 aluminum alloy requires careful processing due to its high strength. However, with the proper techniques, successful bending and shaping can be achieved. The alloy is also suitable for use in high-vibration environments. Its high durability and elastic modulus make it ideal for components such as engine parts, structural components in aircraft, and other components exposed to vibrations.
In terms of corrosion resistance, the 2219 T851 aluminum alloy has lower resistance compared to other aluminum alloys due to its high copper content. This can limit its use in harsh environments, such as marine and humid conditions. However, these limitations can be overcome with appropriate coating methods and surface treatments to improve the alloy’s corrosion resistance. The advantages of the 2219 T851 alloy include high strength, lightweight, and durability, while its drawbacks include lower corrosion resistance and welding challenges.
As Cold Drawn Round/Flat Bar and Tube; 2219 T3511, AMS 4163, UNS A92219, ISO AlCu6Mn, ASTM B221
As Seamless Cold Drawn Tube; 2219 T851, AMS 4066 (Superseded the AMS 4065), UNS A92219, ISO AlCu6Mn, ASTM B241
As Sheet/Plate; 2219 T851, AMS 4295D, UNS A92219, ISO AlCu6Mn, ASTM B209
Choosing Factors for 2219 T851
- Strength: Excellent
- Machining: Poor
- Weldability: Great
- Formability: Okay
- Corrosion Resistance: Satisfactory
- Heat Treating: Yes
Some Well-Known Applications for 2219 T851
In aircraft landing gears,
In bicycle frames and fuel tanks,
It is used in booster engines and engine frames.
- Rod / Round Bar / Flat Bar
- Plate/Sheet
- Tube/Profile
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