Introduction:

7075 aluminum alloy plate is renowned for its exceptional strength-to-weight ratio and high strength properties, making it one of the strongest aluminum alloys available. It is extensively used in aerospace, military, and structural applications where strength and durability are paramount.

 

Chemical Composition (ASTM B209, JIS H4000):

The typical chemical composition of 7075 aluminum alloy plate is as follows:

- Aluminum (Al): 87.1% - 91.4%

- Zinc (Zn): 5.1% - 6.1%

- Magnesium (Mg): 2.1% - 2.9%

- Copper (Cu): 1.2% - 2.0%

- Chromium (Cr): 0.18% - 0.28%

- Silicon (Si): 0.4%

- Iron (Fe): 0.5%

- Titanium (Ti): 0.2%

- Others (each): 0.05% max

- Others (total): 0.15% max

 

Mechanical Properties:

- Tensile Strength: 570 MPa (minimum)

- Yield Strength: 505 MPa (minimum)

- Elongation: 11% (minimum)

 

Hardness:

7075 aluminum alloy plate typically exhibits a Brinell hardness of around 150 HB.

 

Non-Destructive Testing Standard:

To ensure the structural integrity of 7075 aluminum alloy plates, standard non-destructive testing methods such as ultrasonic inspection are employed.

 

Corrosion Resistance:

7075 aluminum alloy offers good resistance to corrosion, particularly in environments with low pH levels. However, it is susceptible to stress corrosion cracking in certain conditions.

 

Heat Treatment Condition:

7075 aluminum alloy plate can be heat treated to achieve various temper conditions, including T6, T651, T73, and T7351, to optimize its mechanical properties for specific applications.

 

Main Applications:

- Aerospace: Aircraft fuselage and wing components, including bulkheads, wing skins, and structural frames.

- Military: Military aircraft, missile components, and armored vehicles due to its high strength and durability.

- Structural applications: High-stress structural components in industries such as marine, automotive, and sporting goods.

- High-performance equipment: High-performance bicycle frames, rock climbing equipment, and firearm components.

 

Size Range:

7075 aluminum alloy plate is available in various sizes and thicknesses, typically ranging from 0.2 mm to 300 mm in thickness, with widths up to 2500 mm and lengths up to 12000 mm.

 

TJC Steel Supply Case:

TJC Steel is a reputable supplier of aluminum alloy products, including 7075 aluminum alloy plates. They adhere to international quality standards such as ASTM B209 and JIS H4000, ensuring the products meet stringent quality requirements for various critical applications.

 

Conclusion:

7075 aluminum alloy plate stands out for its exceptional strength, high mechanical properties, and wide range of applications in demanding industries such as aerospace, military, and structural engineering. With its superior strength-to-weight ratio and corrosion resistance, it remains a preferred choice for critical applications where reliability and performance are paramount.