7079-T6 aluminum alloy is a high-strength zinc-based alloy within the 7xxx series. Through the T6 temper (solution heat treatment + artificial aging), it achieves very high yield and tensile strength. Although it has a chemical composition similar to 7075, it was developed to provide better hardening and more uniform mechanical properties, especially in thicker sections.

In terms of corrosion resistance, 7079-T6 generally shows moderate performance and can be susceptible to stress corrosion cracking. In comparison, 7075-T73 offers better resistance, while 5083 provides significantly superior performance in marine environments. 6061 exhibits a more balanced corrosion behavior. Therefore, 7079 is typically protected using surface treatments such as anodizing, coating, or painting.

Regarding strength and machinability, 7079-T6 offers very high mechanical properties and can perform similarly or even better than 7075-T6 in certain applications. Compared to 2024, it provides higher strength with similar machinability. However, due to its high strength, tool wear can be higher. Compared to 6061, it offers significantly higher strength levels.

In terms of bending properties and weldability, 7079-T6 is limited. Due to high strength and low ductility, there is a high risk of cracking during bending operations. Therefore, forming is typically performed in T4 or O temper. Weldability is poor, and in this respect, 6061 is much more advantageous. In terms of coatability, anodizing can be applied, but copper content may affect surface quality.

Regarding vibration response and applications, 7079-T6 is widely used in aerospace and defense industries due to its high specific strength. It is preferred for structural components requiring high load-bearing capacity and stiffness. While it shares similar applications with 7075-T6, it is sometimes used as an alternative for thicker sections. While 2024 is used in aircraft structures, 6061 in general engineering, and 5083 in marine applications, 7079 stands out in high-performance critical components.

MATERIAL COMPOSITION STANDARDS

7079 T6 is available according to the following standards:
• 7079 T6 Sheet; ASTM B209, AMS 4024, UNS A97079, ISO AlZn4Mg3Cu
• 7079 T6 Extruded Bar;ASTM B221, UNS A97079, ISO AlZn4Mg3Cu
• 7079 T6 Extruded Plate;ASTM B221, UNS A97079, ISO AlZn4Mg3Cu
• 7079 T6 Extruded Tube;ASTM B221, UNS A97079, ISO AlZn4Mg3Cu
 

Characteristic Properties of 7079 T6: 

• Strength: Very good
• Machinability: Good
• Weldability: Poor
• Formability: Moderate
• Corrosion Resistance: Good
• Heat Treatment: Yes
   

Some Well-Known Applications of 7079 T6: 
Aircraft wing panels in the aerospace industry,
Pressure vessels, and
High-strength components requiring durability
 

STOCK
We supply 7079 T6 in sheet, bar/plate, and tube/profile forms.

• Sheet
• Bar/Plate
• Tube/Profile