



板/板
钣金
棒条/金属板
管道/型材
7079
ASTM B221 / AlZn4Mg3Cu / 7079 / T6
化学性质 | % 值 |
Silicon (Si) | 0,00 - 0,30 |
Chromium (Cr) | 0,10 - 0,25 |
Manganese (Mn) | 0,10 - 0,30 |
Magnesium (Mg) | 2,90 - 3,70 |
Copper (Cu) | 0,40 - 0,80 |
Titanium (Ti) | 0,00 - 0,10 |
Iron (Fe) | 0,00 - 0,40 |
Zinc (Zn) | 3,80 - 4,80 |
Aluminium (Al) | Balance |
物理特性 | 值 |
Density | 2.81 g/cm³ |
Melting Point | 477 °C |
Thermal Expansion | 23.6 µm/m.°C |
Modulus of Elasticity | 72 GPa |
Thermal Conductivity | 130 W/m.K |
Electrical Resistivity | %40 IACS |
机械性能 | 值 |
Proof Strength | 503 MPa |
Yield Strength | 572 MPa |
Shear Strength | 331 MPa |
Elongation A50 mm | 11 % |
Hardness | 150 HB |
The 7079 T6 aluminum alloy is known for its high mechanical strength, excellent corrosion resistance, and good machinability. The T6 temper, achieved through heat treatment, provides the alloy with high hardness and durability. These properties make 7079 T6 ideal for high-performance structural applications, particularly in industries such as aerospace, defense, and other demanding sectors. Additionally, 7079 T6 is suitable for anodizing, which enhances its surface appearance while increasing its corrosion resistance, making it perfect for long-lasting performance in harsh environmental conditions.
The weldability of 7079 T6 is good when proper welding techniques are used. However, due to its high hardness and strength, welding requires careful handling and expertise. In terms of bending, 7079 T6 is harder compared to more flexible alloys, which can make the bending process more challenging. However, with the right machinery and techniques, it can still be shaped, but extra care must be taken during the process.
In terms of corrosion resistance, 7079 T6 performs exceptionally well, especially in harsh environments such as seawater, making it ideal for maritime, outdoor structures, and other corrosion-prone applications. Additionally, 7079 T6 is suitable for use in high-vibration environments, making it advantageous for industries such as aerospace, automotive, and defense. Its high durability and long-lasting performance enhance the reliability of 7079 T6 in these demanding applications.
The advantages of 7079 T6 aluminum alloy include high mechanical strength, corrosion resistance, anodizing compatibility, weldability, and suitability for high-vibration environments. However, its high hardness and strength can create challenges during welding and bending processes. Additionally, this alloy may not be as easy to machine as more flexible alloys. Despite these challenges, 7079 T6 is an excellent choice for industrial applications requiring high performance and durability.
As Sheet; 7079 T6, ASTM B209, AMS 4024, UNS A97079, ISO AlZn4Mg3Cu
Choosing Factors for 7079 T6
- Strength: Very good
- Machining: Good
- Weldability: Low
- Formability: Fair
- Corrosion Resistance: Good
- Heat Treating: Yes
Some Well-Known Applications for 7079 T6
In the aviation industry particularly in aircraft wing panels,
In bulkhead assemblies and,
As a component of parts requiring high strength
- Sheet
- Round/Flat Bar
- Tube/Profile