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2618 Aerospace Grade Aluminum Forging

2618 aerospace-grade aluminum forgings are a high-strength aluminum alloy primarily used in the aerospace and automotive industries. Its main components include aluminum, copper, magnesium, and silicon, with a particularly high copper content, which gives it excellent mechanical properties and high-temperature resistance.

2618 aluminum forgings typically require heat treatment to achieve optimal mechanical performance. Common heat treatment methods include aging and quenching.

2618 aluminum alloy is often heat-treated (such as T6 treatment) to enhance its strength and durability. After heat treatment, the material's tensile and yield strengths are significantly improved, making it perform exceptionally well under extreme conditions.

Characteristics of 2618 Aluminum Forgings

  • 1. High Strength: The 2618 alloy has an excellent strength-to-weight ratio, suitable for high-stress applications.
  • 2. Heat Resistance: It maintains mechanical properties at high temperatures, making it suitable for components in high-temperature environments.
  • 3. Fatigue Resistance: The 2618 aluminum alloy exhibits good fatigue performance under prolonged cyclic loads.
  • 4. Machinability: It has good forging and machining properties, suitable for manufacturing complex-shaped components.
  • 5. Good Weldability: Although aluminum alloys generally have poor weldability, 2618 can be welded under specific conditions, making it suitable for certain repair work.

Chemical composition of 2618A/2618 aluminum forgings

Element Composition(%)
Aluminum (Al) 93.0-95.0
Copper (Cu) 2.20-2.80
Iron (Fe) 0.30 max
Magnesium (Mg) 1.50-2.50
Manganese (Mn) 0.10 max
Silicon (Si) 0.50-0.90
Zinc (Zn) 0.20 max
Titanium (Ti) 0.10 max
Chromium (Cr) 0.10 max
Other Elements 0.05 max each, 0.15 max total

Material properties for 2618A aluminum forging

Material Specification Density (g/cm3) Melting Point (°C) Thermal Conductivity (W/mK) Coefficient of Thermal Expansion (10-6/K)
DTD 717A 2618A-T6 Forging Stock and Forgings 2.78 515-635 127 23.2
DTD 731B 2618 T6 Forging Stock and Forgings 2.78 515-635 127 23.2
AMS 4132 2618-T61 Die & Hand forgings 2.78 515-635 127 23.2

Advantages and Limitations of 2618 Aerospace Aluminum Forging

Advantages of 2618 Aerospace Aluminum Forging

  • High strength and good heat resistance
  • Good machinability
  • Excellent fatigue resistance

Limitations of 2618 Aerospace Aluminum Forging

  • Relatively low corrosion resistance
  • May require additional surface treatment in certain environments

Processing Characteristics

The 2618 aluminum alloy is suitable for forging, extrusion, and machining processes. Due to its high strength and toughness, it is commonly used to manufacture structural components that withstand high loads.

Application of 2618A T6/T61/T651 Aerospace Aluminum Forgings

Engine Components

2618 aluminum forgings are often used to manufacture key components of aircraft engines, such as turbine housings and engine mounts, due to their high strength and high-temperature performance.

Structural Components

2618 plates or forgings are used in the structural frames and support components of aircraft, providing excellent strength and rigidity while reducing overall weight.

Fuel Tanks

Welded parts made from 2618 aluminum alloy are suitable for aircraft fuel tanks due to their corrosion resistance, ensuring safety and stability during long-term storage and transportation.

High Load Components

Complex-shaped 2618 forgings are suitable for components that bear high loads and impacts, such as wing fittings and landing gear parts, ensuring reliability under extreme conditions.

Heat Exchangers

2618 forged plates or tubes are used in aerospace heat exchange systems, where the thermal conductivity of 2618 aluminum alloy helps improve system efficiency.

Popular Aerospace Aluminum Forgings from Haomei

Haomei Aluminum offers alloys including 2014, 2024, 2124, 2219, 2618, 2619, 3003, 5083, 6061, 7049, 7050, 7075, 7079, 7149, 7150, and 7175 temper alloys, available upon request, complying with all AMS, ASTM, Boeing commercial, and Boeing military specifications.

TYPE SPECIFICATIONS
2014 AMS4133, 4134, 4314, AMS-A-22771
2024 AMS-QQ-A-367
2219 AMS4143, 4144, AMS-QQ-A-367, AMS-A-22771
2618 AMS4132, AMS-QQ-A-367, AMS-A-22771
6061 AMS4127, 4146, AMS-QQ-A-367, AMS-A-22771
7049 AMS4111, AMS-QQ-A-367, AMS-A-22771
7050 AMS4107, 4108, AMS-A-22771
7075 AMS4126, 4131, 4141, 4147, AMS-QQ-A-367
7079 AMS-QQ-A-367
7150 AMS-A-22771
7175 AMS4148, 4149, 4179, AMS-A-22771