7075-T6 aluminum alloy is one of the highest strength alloys within the 7xxx series and is widely used in aerospace and defense industries. The T6 temper includes solution heat treatment followed by artificial aging, allowing the alloy to reach its maximum strength level. In this condition, the alloy gains high hardness and strength, while its ductility is significantly reduced.

In terms of corrosion resistance, 7075-T6 exhibits moderate performance and is particularly susceptible to stress corrosion cracking (SCC). Therefore, it is typically used with surface protection methods such as anodizing, painting, or Alclad coating. The 5xxx series (e.g., 5083) offers much better corrosion resistance in marine environments, while 6061 provides a more balanced performance. The 2024 alloy similarly requires protective coatings.

Regarding strength and mechanical properties, 7075-T6 has very high yield and tensile strength and can compete with many steels. Compared to 6061-T6, it offers approximately 40–70% higher strength. Compared to 2024-T3, it provides higher tensile strength, and significantly higher strength than 5083. Therefore, it is preferred in high load-bearing structural applications.

In terms of machinability, bending, and weldability, 7075-T6 has good machinability, although its high hardness can lead to increased tool wear. Its bending capability is limited, and there is a high risk of cracking at small bend radii. Weldability is poor; in this regard, 6061 is much more advantageous. In terms of coatability, anodizing can be applied, but surface color and uniformity may vary due to copper content.

Regarding vibration behavior and applications, 7075-T6 is widely used in aerospace, defense, mold industry, sports equipment, and high-performance machinery components due to its high specific strength. Aircraft landing gear, fasteners, mold plates, and high-stress components are typical applications. While 2024 has advantages in fatigue performance, 7075-T6 stands out in applications requiring maximum static strength.

MATERIAL COMPOSITION STANDARDS

7075 T6 can conform to the following standards:
• 7075 T6 Sheet; AMS QQ-A-250/12, AMS 4045, ASTM B209, EN 2696
• 7075 T6 Alclad Sheet; AMS QQ-A-250/13, AMS 4049, ASTM B209, AIR 9048-280, BS 2 L88, WL 3.4374, DAN 424, EN 2092
• 7075 T6 Oneside Alclad Sheet; AMS QQ-A-250/18, AMS 4046, ASTM B209
• 7075 T6 Extrusion Seamless Tube; AMS QQ-A-200/11, AMS 4154, ASTM B241
• 7075 T6 Extrusion Rod; AMS QQ-A-200/11, AMS 4154, ASTM B221
• 7075 T6 Extrusion Flat Bar; AMS QQ-A-200/11, AMS 4154, ASTM B221
• 7075 T6 Extrusion Wire; AMS QQ-A-200/11, AMS 4154, ASTM B221
• 7075 T6 Cold Drawn Rod; AMS QQ-A-225/9, AMS 4122, ASTM B211
• 7075 T6 Cold Drawn Flat Bar; AMS QQ-A-225/9, AMS 4122, ASTM B211
• 7075 T6 Cold Drawn Wire; AMS QQ-A-225/9, AMS 4122, ASTM B211
• 7075 T6 Cold Drawn Seamless Tube; AMS-T-700/7, ASTM B210
Alloy 7075, UNS A97075, AlZn5.5MgCu, DIN 3.4365, A-Z5GU
 

Characteristic Properties of 7075 T6:

• Strength: Excellent
• Machinability: Good
• Weldability: Poor
• Formability: Moderate
• Corrosion Resistance: Low
• Heat Treatment: Yes
   

Some Well-Known Applications of 7075 T6:
Used in many places from supersonic aircraft to sewing machine equipment.
Shoe injection molds, nuclear reactors.
In hundreds of industries as coils, springs, flanges.
STOCK
7075 T6 is supplied in sheet, rod, and flat bar forms.

• Sheet
• Rod / Flat Bar