The 7150 T7751 aluminum alloy is known for its high strength, durability, and excellent corrosion resistance. As part of the aluminum-zinc alloy family, it is primarily used in aerospace, space, defense, and high-performance structural applications. The T7751 temper, achieved through specific heat treatments, provides the alloy with high durability, hardness, and stress resistance while maintaining machinability. Its high strength-to-weight ratio makes the 7150 T7751 alloy ideal for heavy-load-bearing components used in demanding environments.

The 7150 T7751 aluminum alloy has limited suitability for anodizing. Its high zinc content prevents the formation of an effective oxide layer during anodizing, making anodizing unsuitable for protection. Therefore, other coating methods are typically used to protect the alloy. In terms of weldability, the 7150 T7751 alloy requires careful handling during welding. The high zinc content increases the risk of cracking during welding, so proper welding techniques and filler materials must be used to minimize this risk.

In terms of bending and forming, the 7150 T7751 aluminum alloy requires careful processing due to its high strength. However, with the correct processing techniques, successful bending and forming can be achieved. Additionally, the 7150 T7751 alloy is suitable for use in high-vibration environments. Its high elastic modulus and durability make it ideal for vibration-resistant components such as engine parts, chassis, and other components exposed to vibrations.

Regarding corrosion resistance, the 7150 T7751 aluminum alloy may exhibit limited resistance due to its high zinc content compared to other aluminum alloys. However, its corrosion resistance can be improved with proper surface coatings and treatments. The advantages of the 7150 T7751 alloy include high strength, durability, and lightweight properties, while its disadvantages include limited corrosion resistance and challenges in welding.

• Strength: Very good
• Machining: Good
• Weldability: Mediocre
• Formability: Poor
• Corrosion Resistance: Excellent
• Heat Treating: Yes

Some Well-Known Applications for 7150 T7751

It is used in keels,

In fuselage and wing parts,

It is also used in the nuclear industry.