2618, also known as UNS A92618 or AMS 4181, is a high-strength aluminum alloy renowned for its excellent toughness and resistance to thermal stress. It is recognized under AMS 4112, AMS 4082, DIN 3.2815, EN AW-2618, and BS L168, ensuring compliance with international standards.

2618 is specifically designed for applications requiring high strength and exceptional resistance to thermal fatigue, making it ideal for aerospace and automotive applications. Its unique composition provides excellent performance in extreme conditions.

2618 Sheet | Plate

2618 sheets and plates are available in a variety of thicknesses and dimensions. These materials are crucial for high-strength applications, including aerospace structures and engine components.

2618 Round Bar | Rod

2618 round bars and rods come in various diameters and lengths. These products are essential for precision machining and manufacturing components that must withstand significant mechanical stresses.

2618 Strip | Coil

Available in strips and coils, 2618 is suitable for applications requiring flexible and high-strength materials. These forms are commonly used for making components in aerospace and military applications.

2618 Applications

• Aircraft structures
• Rocket components
• High-performance engine parts
• Automotive parts that demand high strength and thermal resistance

2618 Properties

• Tensile Strength: 441 MPa
• Density: About 2.83 g/cm³, providing a favorable strength-to-weight ratio for demanding applications.
• Thermal Conductivity: Roughly 146 W/m·K
• Corrosion Resistance: 2618 offers good resistance to corrosion, particularly when anodized or treated properly.

Machining 2618

• Cutting: 2618 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 2618. Proper cooling and lubrication are essential to maintain tool life and ensure accurate drilling.
• Turning: Carbide inserts are preferred for turning 2618. 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 2618, 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 0.25%
• Iron (Fe): Min 0.9%, Max 1.4%
• Copper (Cu): Min 1.8%, Max 2.7%
• Manganese (Mn): Max 0.2%
• Magnesium (Mg): Min 1.2%, Max 1.8%
• Nickel (Ni): Min 0.8%, Max 1.4%
• Zinc (Zn): Max 0.1%
• Titanium + Zirconium (Ti+Zr): Max 0.2%
• Lead + Tin (Pb+Sn): Max 0.05%
• Titanium (Ti): Max 0.2%
• Aluminum (Al): Balance