Aluminium 2618 Alloys - UNS A92618 / AMS 4181 / AMS 4112 / AMS 4082 / DIN 3.2815 / EN AW-2618 / BS L168

Aluminium 2618 Alloy , designated as UNS A92618 or AMS 4181, conforms to multiple global standards, including AMS 4112, AMS 4082, DIN 3.2815, EN AW-2618, and BS L168. These classifications reflect their wide acceptance and compliance with various international specifications. Aluminium 2618 is a heat-treatable aluminium-copper alloy designed for applications requiring high strength, thermal stability, and excellent fatigue resistance at elevated temperatures. Known for its reliable performance in extreme operating environments, Aluminium 2618 is widely used in aerospace, automotive, and defense applications.

This alloy exhibits superior creep resistance and maintains its mechanical properties in temperature ranges up to 200–300°C, making it ideal for aircraft engine components, turbocharger housings, racing pistons, and other high-stress structural parts. Though its corrosion resistance is lower than some other aluminium grades, it can be treated or coated for additional protection.

At Plus Metals, we supply Aluminium 2618 in the form of plates, bars, rods, forgings, and custom-machined components, delivered with quality certifications and full traceability.

Aluminium 2618 Alloy Sheet | Plate

Aluminium 2618 Alloy 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.

Aluminium 2618 Alloy Round Bar | Rod

Aluminium 2618 Alloy 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.

Aluminium 2618 Alloy 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.

Aluminium 2618 Alloy Applications

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

Aluminium 2618 Alloy 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.

Aluminium Machining 2618 Alloy

• 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.

Aluminium 2618 Alloys 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