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2618A
ASTM B211 / AlCu2Mg1.5Ni / 2618A / T6511
Chemical Properties | % Value |
Silicon (Si) | 0,00 - 0,25 |
Tin (Sn) | 0,00 - 0,05 |
Manganese (Mn) | 0,00 - 0,20 |
Magnesium (Mg) | 1,20 - 1,80 |
Copper (Cu) | 1,80 - 2,70 |
Lead (Pb) | 0,00 - 0,05 |
Titanium (Ti) | 0,00 - 0,20 |
Iron (Fe) | 0,90 - 1,40 |
Zinc (Zn) | 0,00 - 0,15 |
Nickel (Ni) | 0,80 - 1,40 |
Aluminium (Al) | Balance |
Physical Properties | Value |
Density | 2.76 g/cm³ |
Melting Point | 535 °C |
Thermal Expansion | 21.6 µm/m°C |
Modulus of Elasticity | 70 GPa |
Thermal Conductivity | 147 W/m.K |
Electrical Resistivity | 36 % IACS |
Mechanical Properties | Value |
Proof Strength | 372 MPa |
Yield Strength | 441 MPa |
Shear Strength | 262 MPa |
Elongation A50 mm | 10% |
Hardness | 115 HB |
2618A T6511 aluminum alloy is known for its exceptional thermal stability, high strength, and excellent fatigue resistance. Composed of copper, magnesium, and silicon, this alloy is ideal for applications requiring high-temperature resistance and mechanical load capacity. The T6511 temper signifies that the alloy has undergone solution heat treatment, stress relief, and natural aging, providing outstanding durability and dimensional stability.
This alloy is widely used in critical components in aerospace, automotive, and defense industries. Common applications include jet engine parts, aircraft structures, engine pistons, and high-temperature-resistant components. 2618A T6511 is compatible with anodizing, which forms a protective oxide layer to enhance corrosion resistance. However, its high copper content requires careful handling during the anodizing process. In terms of weldability, the alloy has limitations, with mechanical fasteners or specialized welding techniques typically preferred.
Regarding forming and bending, 2618A T6511 aluminum alloy offers limited formability due to its high strength. Complex shaping processes can be challenging, but proper techniques and careful handling can yield successful results. Its fatigue resistance and mechanical stability make it highly reliable in high-vibration and dynamic load environments. These attributes ensure its suitability for long-lasting and durable applications.
Corrosion resistance is moderate, and additional surface protection treatments are recommended for use in humid or corrosive environments. Advantages of this alloy include high-temperature resistance, fatigue resistance, and mechanical stability, while disadvantages include low weldability, reduced formability, and moderate corrosion resistance. These characteristics make 2618A T6511 aluminum alloy an excellent choice for projects requiring lightweight materials and superior durability.
As Extruded Round/Flat Bar and Tube; 2618A T6511, ASTM B221, UNS A92618, AIR 9048.150, ISO AlCu2Mg1.5Ni, WNR 3.1924, DTD 5014A
As Cold Drawn Round/Flat Bar and Tube; 2618A T6511, ASTM B211, UNS A92618, ISO AlCu2Mg1.5Ni, WNR 3.1924, EN 3553
Choosing Factors for 2618A T6511
- Strength: High
- Machining: Okay
- Weldability: Bad
- Formability: Good
- Corrosion Resistance: Fair
- Heat Treating: Yes
Some Well-Known Applications for 2618A T6511
In the engines and fuselages of aircraft,
In response to the needs of the high-tech industry,
It has a wide range of applications, including car pistons and gears.
- Round/Flat Bar
- Tube/Profile
Mechanical Properties | |||
Thickness (mm) | Proof Strength (Min.) | Yield Strength (Min.) | Elongation A50 mm % |
Up to & incl. 10 | Min 320 MPa | Min 400 MPa | %5 |
Over 10 mm up to & incl. 100 mm | Min 340 MPa | Min 420 MPa | 5% |