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7049
AMS 4159 / AlZn8MgCu / 7049 / T76511
| Chemical Properties | % Value |
| Silicon (Si) | 0,00 - 0,25 |
| Chromium (Cr) | 0,10 - 0,22 |
| Manganese (Mn) | 0,00 - 0,20 |
| Magnesium (Mg) | 2,00 - 2,90 |
| Copper (Cu) | 1,20 - 1,90 |
| Titanium (Ti) | 0,00 - 0,10 / - |
| Iron (Fe) | 0,00 - 0,35 |
| Zinc (Zn) | 7,20 - 8,20 |
| Aluminium (Al) | Balance |
| Physical Properties | Value |
| Density | 2.84 g/cm³ |
| Melting Point | 477 °C |
| Thermal Expansion | 23,4 x 10^-6 /K |
| Modulus of Elasticity | 71,7 GPa |
| Thermal Conductivity | 154 W/m.K |
| Mechanical Properties | Value |
| Proof Strength | 520 MPa |
| Yield Strength | 460 MPa |
| Shear Strength | 410 MPa |
| Elongation A50 mm | %8 |
| Hardness | 150 HB |
The 7049 T76511 aluminum alloy is known for its high mechanical strength, excellent corrosion resistance, and good machinability. The T76511 temper, achieved through advanced heat treatment, provides the alloy with high hardness and durability. This makes it ideal for high-performance structural applications, particularly in industries like aerospace, automotive, and defense. Additionally, 7049 T76511 is suitable for anodizing, which enhances its surface appearance while increasing corrosion resistance, making it perfect for long-lasting outdoor applications.
In terms of weldability, 7049 T76511 can be successfully welded with the correct welding techniques. However, due to its high strength and hardness, careful attention is needed during the welding process. The high hardness of the alloy requires precise control of thermal effects during welding. Furthermore, while 7049 T76511 is suitable for bending, its higher hardness compared to T6 and T4 tempers means that bending must be done with extra care.
The corrosion resistance of 7049 T76511 is exceptional, especially in harsh environments like seawater, making it ideal for maritime and outdoor structures that are exposed to corrosive conditions. Additionally, the alloy can be used in high-vibration environments, making it advantageous for dynamic industries such as aerospace, automotive, and defense. Its high durability and long-lasting performance enhance the reliability of 7049 T76511 in these demanding applications.
The advantages of 7049 T76511 aluminum alloy include high mechanical strength, corrosion resistance, anodizing compatibility, weldability, and suitability for high-vibration environments. However, its high hardness and strength can present challenges during welding and bending processes. Additionally, this alloy may not be as easily machinable as more flexible alloys. Despite these drawbacks, 7049 T76511 is an excellent choice for industrial applications that require high performance and durability.
Choosing Factors for 7049 T76511
- Strength: High
- Machining: Good
- Weldability: Low
- Formability: Moderate
- Corrosion Resistance: Very good
- Heat Treating: Yes
Some Well-Known Applications for 7049 T76511
Structural components of aircrafts,
In ammunitions parts and missile parts,
It is also used in mechanical-chemical industry.
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