- What is 2618 Aerospace Aluminum Plate, and Why is it Used in Aerospace Applications?
- Properties of 2618 Aerospace Aluminum Plate
- 2618 Aerospace Aluminum Plate Sheet Informations
- Top 9 Reasons to Choose 2618 Aerospace Aluminum Plate
- The specification introduction of 2618A/2618 aerospace-grade aluminium plate
- Typical Temper Mechanical Properties of 2618 Aerospace Aluminum Plate Sheet
- Typical 2618 Aircraft Aluminum Plate
- 2618 Aerospace Aluminum Plate Sheet Applications
- Chemical Composition 2618 Aluminum Plate
- The physical properties of 2618A 2618 aircraft aluminum plate
- Frequently Asked Questions (FAQ) about 2618 Aerospace Aluminum Plates
What is 2618 Aerospace Aluminum Plate, and Why is it Used in Aerospace Applications?
2618 aluminum is an alloy known for its high strength, excellent fatigue resistance, and good high-temperature performance. It is used in aerospace applications where these properties are essential, such as engine components and structural parts.
2618 Aerospace Aluminum is a high strength alloy commonly used in aerospace and military applications where strength and durability are critical.
Aerospace aluminum plates and sheets made of 2618 aluminum are widely used in structural parts, pipe fittings, landing gear and other components in the aerospace industry. These plates and sheets are usually manufactured using advanced processing techniques such as hot rolling, cold rolling and annealing to obtain the desired properties and dimensions.
2618 aviation aluminum plate is used in various aerospace fields such as structural parts, landing gear, rocket parts, engine parts, etc. 2618 aluminum alloy typically adopts T6 tempering state, that is, solution heat treatment and artificial aging state. This state provides the optimal combination of strength, ductility and toughness for high stress applications.
Properties of 2618 Aerospace Aluminum Plate
- High Tensile Strength
- Excellent Fatigue Resistance, Corrosion Resistance
- Good Processability and Ability to Maintain Mechanical Properties at Elevated Temperatures.
- Low Density Helps Reduce the weight of Aerospace Components.
2618 Aerospace Aluminum Plate Sheet Informations
| Property | 2618 Alloy Characteristics |
| Principal Design Features | This alloy containing copper and magnesium is age hardenable for good strength in applications that involve exposure to heat up to 575°F. |
| Applications | 2618 is commonly used in the manufacture of aircraft engines. |
| Machinability | 2618 has excellent machining characteristics. The heat treated (aged) condition allows machining to a smoother finish than annealed or water quenched conditions. |
| Forming | Formability of 2618, both hot and cold, is good. |
| Welding | Resistance welding may be done satisfactorily. Conventional fusion welding methods should NOT be used due to potential harm from excessive heat input. |
| Heat Treatment | Solution heat treatment at 985°F followed by water quenching. Annealing and age hardening treatments are also possible. |
| Forging | Hot forging is done in the range of 970°F down to 700°F, starting with preheating the 2618 material to 970°F. |
| Hot Working | 2618 may readily be hot worked in the temperature range of 660°F to 700°F. |
| Cold Working | 2618 has good formability and is readily cold worked in either the solution heat treated or annealed condition. |
| Annealing | Annealing of 2618 can be done at 725°F for 4 hours followed by slow cooling in a furnace. |
| Aging | Aging heat treatment (T 61) for 2618 involves solutioning at 980°F for up to 24 hours, quenching in boiling water, and aging at 390°F for up to 20 hours. |
| Tempering | Not applicable to this alloy. |
| Hardening | 2618 hardens by cold working and aging heat treatment (T 61 condition). |
Top 9 Reasons to Choose 2618 Aerospace Aluminum Plate
2618 aerospace aluminum plates offer several advantages and benefits over other materials, particularly in specific aerospace applications. Here are some of the key advantages and benefits of using 2618 aluminum plates:
1. High Strength
2618 aluminum is known for its exceptional strength, making it suitable for applications where structural integrity and load-bearing capabilities are critical. It has a high tensile strength, which is advantageous in aerospace components subjected to heavy loads.
2. Excellent Fatigue Resistance
2618 aluminum exhibits excellent fatigue resistance, making it suitable for components that experience cyclic loading, such as aircraft landing gear and engine parts. It can withstand repeated stress without premature failure.
3. Corrosion Resistance
While not as corrosion-resistant as some other aluminum alloys like 7075, 2618 aluminum still offers reasonable corrosion resistance. It can be used in aerospace applications where exposure to moisture and environmental factors is a concern.
4. High Temperature Performance
2618 aluminum maintains its mechanical properties at elevated temperatures. This characteristic is valuable in aerospace applications where components are exposed to high temperatures, such as engine parts and exhaust systems.
5. Low Density
Aluminum is inherently lightweight, and 2618 aluminum maintains a relatively low density despite its high strength. This property is crucial in aerospace, where weight reduction is a primary goal to improve fuel efficiency and performance.
6. Weldability
2618 aluminum is weldable, allowing for the fabrication and repair of aerospace components. Proper welding techniques can be employed to join 2618 aluminum plates effectively.
7. Machinability
Compared to some other high-strength aluminum alloys, 2618 aluminum has good machinability. This makes it easier to shape and machine into complex aerospace components with tight tolerances.
8. Versatility
2618 aluminum is used in a variety of aerospace applications, including pistons, cylinder heads, and structural components in aircraft and rocketry. Its versatility stems from its combination of strength and temperature resistance.
9. Recyclability
Aluminum is highly recyclable, making it environmentally friendly. The ability to recycle 2618 aluminum plates aligns with sustainability and resource conservation goals in the aerospace industry.
It's important to note that while 2618 aluminum offers these advantages, material selection in aerospace applications depends on specific requirements, including the design, environmental conditions, and performance expectations of the component. In some cases, other materials like titanium, composites, or different aluminum alloys may be more suitable. Engineers and designers carefully evaluate the properties of each material to choose the best fit for the intended application.
The specification introduction of 2618A/2618 aerospace-grade aluminium plate
| Alloy | 2618A 2618 |
| Temper | O, T6, T62, T651, T351, T81, T851 etc. |
| Thickness | 0.5mm-300mm |
| Width | 500-2650mm |
| Length | 500-12000mm |
Typical Temper Mechanical Properties of 2618 Aerospace Aluminum Plate Sheet
| Temper | Specified thickness/mm | Tensile strength Rm/MPa | Yield strength Rp0.2/MPa | Elongation min.% | ||||
| over | up to | min. | max. | min. | max. | A50 mm | A | |
| T851 | 6 | 12.5 | 420 | - | 375 | - | 5 | - |
| T851 | 12.5 | 40 | 420 | - | 375 | - | - | 5 |
| T851 | 40 | 80 | 410 | - | 370 | - | - | 5 |
| T851 | 80 | 100 | 405 | - | 365 | - | - | 4 |
| T851 | 100 | 140 | 395 | - | 360 | - | - | 4 |
Typical 2618 Aircraft Aluminum Plate
2618 T6 Aircraft Aluminum Plate
The most common state of 2618 aviation aluminum plate is T6, which is the state of solution heat treatment and artificial aging.
- 2618 T6 offers the highest strength, ductility and toughness for high stress aerospace applications.
- 2618 T6 Aircraft Aluminum is suitable for structural parts, landing gear, rocket parts, engine parts.
2618 T61 Aircraft Aluminum Plate
2618 T61 This is a solution heat treatment condition followed by a low temperature stretching process.
- 2618 T61 offers higher elongation and toughness than T6 while maintaining high strength.
- 2618 T61 Aircraft Aluminum is suitable for aerospace applications requiring increased toughness, such as landing gear and structural members.
2618 T62 Aircraft Aluminum Plate
2618 T62 is a solution heat treatment condition followed by a controlled stretching process.
- 2618 T62 This temper provides high strength and improved fracture toughness compared to T6.
- 2618 T62 Aircraft Aluminum is suitable for aerospace applications requiring increased strength and toughness, such as rocket components.
2618 T651 Aircraft Aluminum Plate
2618 T651 is a stress relieved condition.
- 2618 T651 offers improved dimensional stability and reduced residual stress compared to T6.
- 2618 T651 Aircraft Aluminum is typically used in applications requiring tight tolerances such as structural components and engine components.
2618 T652 Aircraft Aluminum Plate
2618 T652 is a stress-relieving state followed by a controlled stretching process.
- 2618 T651 This temper provides high strength and improved fracture toughness compared to T651.
- 2618 T652 is suitable for aerospace applications requiring increased strength and toughness, such as rocket components.
The choice of the state of 2618 aviation aluminum sheet depends on the specific application requirements, such as strength, toughness, dimensional stability, etc. T6 state is the most commonly used state of 2618 aviation aluminum plate, with high strength and excellent mechanical properties.
2618 Aerospace Aluminum Plate Sheet Applications
2618 aluminum is used in a range of aerospace applications, including piston engines, cylinder heads, structural components in aircraft and rocketry, and parts subjected to high mechanical and thermal loads.
2618 T6 Aerospace Aluminum for Structure
Aerospace structural parts require high strength and stiffness, and 2618 aluminum sheet is the first choice because of its excellent mechanical properties.
- Temper : T6, 2618 aluminum plate in T6 state due to its high strength, toughness and fatigue resistance.
- They are used in wing skins, fuselage frames, spars, stringers and other critical components.
2618 Aerospace Aluminum for Landing Gear
Landing gear is a key component of an aircraft and requires high strength and wear resistance. 2618 aluminum plate is used to manufacture landing gear due to its excellent mechanical properties, corrosion resistance and wear resistance.
2618 T651 Aerospace Aluminum for Rocket and Spacecraft Components
2618 aluminum plate is used to manufacture thrust chambers, nozzles and other rocket components, which require high strength, rigidity and thermal stability.
- Temper : T651, 2618 aluminum plate in T61 state due to its high ductility and toughness,
- Commonly used in missile and rocket components, these plates can withstand the high stresses and vibrations associated with missile and rocket launches.
2618 T651 T652 Aerospace Aluminum for Engine Parts
2618 aluminum plate is also used to manufacture engine parts such as pistons, connecting rods, cylinder heads, etc. Engine components require high strength, stiffness and thermal stability,
- Temper : T651 or T652 condition, 2618T651, T652 aluminum has high strength, toughness and heat resistance.
- It is often used in the manufacture of engine components such as pistons, connecting rods, and cylinder heads.
Chemical Composition 2618 Aluminum Plate
| Element | Composition % |
| Si | 0.10-0.25 |
| Fe | 0.9-1.3 |
| Cu | 1.9-2.7 |
| Mn | - |
| Mg | 1.3-1.8 |
| Ni | 0.9-1.2 |
| Zn | 0.10 |
| Ti | 0.04-0.10 |
| Other | 0.20 |
| Al | Remainder |
The physical properties of 2618A 2618 aircraft aluminum plate
| Density | 2.77 g/cm3 |
| Melting range | 529°C |
| Thermal Expansion | 21.6×10-6 /K |
| Modulus of Elasticity | 71 GPa |
Frequently Asked Questions (FAQ) about 2618 Aerospace Aluminum Plates
1. Is 2618 Aluminum Plate Weldable?
Yes, 2618 aluminum is weldable, which allows for fabrication and repair of aerospace components. Proper welding techniques are employed to ensure strong and reliable welds.
2. How does 2618 Aluminum Compare to other Aerospace Aluminum Alloys like 7075 or 2024?
2618 aluminum offers superior strength and fatigue resistance compared to 2024, making it suitable for components under high cyclic loading. It has similar strength to 7075 but better high-temperature performance.
3. Are there any Limitations or Challenges when Using 2618 Aerospace Aluminum Plates?
While 2618 aluminum offers excellent properties, it may not be the best choice for every aerospace application. Its use depends on specific requirements, and factors like cost and availability can be considerations.
4. What Industry Standards and Certifications Apply to 2618 Aerospace Aluminum Plates?
2618 aluminum plates are produced to meet industry standards and certifications such as AMS (Aerospace Materials Specifications) and MIL (Military) specifications to ensure they meet safety and performance requirements for aerospace applications.
