7050 T7451 aluminum alloy belongs to the Al-Zn-Mg-Cu based 7000 series and is developed for applications requiring high strength, superior toughness, and enhanced resistance to stress corrosion cracking. The T7451 temper includes solution heat treatment, stress relieving, and overaging. This temper provides high performance especially in thick sections and offers a more reliable structure compared to 7075-T6, making it widely preferred in aerospace applications.

In terms of corrosion resistance, 7050 T7451 demonstrates superior performance within the 7000 series. Its resistance to stress corrosion cracking (SCC) is significantly higher than that of 7075-T6. However, its general corrosion resistance is lower than that of 6000 series alloys. It can be used in marine environments, but protective coatings are generally recommended.

Regarding strength and mechanical properties, 7050 T7451 offers very high strength and is one of the strongest alloys in the 7000 series. While it has strength levels similar to 7075, it provides higher toughness and better resistance to crack propagation. Compared to 2024 alloy, it is superior in both strength and damage tolerance. It is especially suitable for thick plates and heavily loaded structural components.

In terms of machinability, bendability, and weldability, 7050 T7451 has moderate machinability. Machining is possible but not as easy as with 6000 series alloys. Its weldability is limited and it is generally not preferred for welded applications. Its bending capability is low, and forming operations are typically performed before heat treatment. Similar to 7075, it is mainly used in machined and forged parts.

Regarding coating ability, vibration behavior, and applications, 7050 alloy is suitable for anodizing and protective coatings, although its decorative surface quality is limited. Its vibration damping capacity is low. Main application areas include aerospace industry, aircraft wing and fuselage components, military applications, and high load-bearing structural parts. 7050 T7451 is preferred especially in applications where high strength, thick section performance, and crack resistance are critical.

MATERIAL COMPOSITION STANDARDS

7050 T7451 is available in the following standards:
• 7050 T7451 Plate/Sheet; EN 3982, AIR 9048.740, AMS 4050, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
• 7050 T7451 Extrusion Round Bar; EN 3338, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
• 7050 T7451 Extrusion Bar; EN 3338, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
• 7050 T7451 Extrusion Wire; EN 3338, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
• 7050 T7451 Extrusion Tube; EN 3338, WNR 3.4144, UNS A97050, ISO AlZn6CuMgZr
 

Characteristic Properties of 7050 T7451: 

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

Some Well-Known Applications of 7050 T7451: 
Primarily in aerospace industry,
Aircraft fuselage and wing components,
Also used in the nuclear industry.
 

STOCK
7050 T7451 is available in plate/sheet, rod/bar, and tube/profile forms.

• Plate/Sheet
• Sheet
• Rod / Bar
• Tube/Profile