7175, also known as UNS A97175 or AMS 4149, is a high-strength aluminum alloy recognized for its excellent mechanical properties, particularly in applications requiring high strength-to-weight ratios. It adheres to standards such as AMS 4343, DIN 3.4334, and EN AW-7175, ensuring compliance with international quality standards.

7175 is specifically designed for applications requiring high strength, good fatigue resistance, and good corrosion resistance, making it ideal for aerospace and military applications.

7175 Sheet | Plate

7175 sheets and plates are available in various thicknesses and dimensions. These materials are essential for high-strength applications, including aircraft structures and other critical components.

7175 Round Bar | Rod

7175 round bars and rods are available in various diameters and lengths. These products are crucial for precision machining and manufacturing components subjected to significant mechanical stresses.

7175 Strip | Coil

Available in strips and coils, 7175 is suitable for applications requiring flexible and high-strength materials. These forms are commonly used in aerospace and military components.

7175 Applications

• 7175 is extensively used in aerospace applications, including airframes, wing structures, and critical load-bearing components due to its high strength and lightweight nature.

7175 Properties

• Tensile Strength: Approximately 435 MPa
• Density: Approximately 2.80 g/cm³, providing a favorable strength-to-weight ratio for demanding applications.
• Thermal Conductivity: Roughly 142 W/m·K
• Corrosion Resistance: 7175 offers good resistance to corrosion, particularly when anodized or coated, enhancing its durability in various environments.

Machining 7175

• Cutting: 7175 can be cut using high-speed steel or carbide tools. Techniques such as water jet cutting or laser cutting are recommended for precision work.
• Drilling: Utilize carbide or cobalt drills for drilling 7175. Proper cooling and lubrication are essential to maintain tool life and ensure accurate drilling.
• Turning: Carbide inserts are preferred for turning 7175. Consistent cutting speeds and high-pressure cooling are crucial for achieving optimal results.
• Milling: Milling operations should use carbide end mills with adequate cooling to manage heat and maintain precision during processing.
• Grinding: For grinding 7175, use diamond or CBN wheels to achieve precise tolerances and a high-quality surface finish. Adequate cooling is necessary to prevent overheating and maintain dimensional accuracy.

Chemical Composition

• Silicon (Si): Max 0.15%
• Iron (Fe): Max 0.20%
• Copper (Cu): Min 1.20%, Max 2.00%
• Manganese (Mn): Max 0.10%
• Magnesium (Mg): Min 2.10%, Max 2.90%
• Chromium (Cr): Min 0.18%, Max 0.28%
• Zinc (Zn): Min 5.10%, Max 6.10%
• Titanium (Ti): Max 0.10%
• Aluminum (Al): Balance