2219-T37 Aluminum vs. 2219-T87 Aluminum

2219-T37 aluminum has higher fatigue strength, making it suitable for medium-strength and high-fatigue environments, while 2219-T87 aluminum has higher tensile strength, yield strength, and shear strength, making it suitable for high-load applications.

• 2219-T87 aluminum: It has the highest strength, making it suitable for high-strength and high-load applications, but its fatigue strength and ductility are slightly lower.
• 2219-T37 aluminum: It has higher fatigue strength, making it suitable for environments subjected to repeated stresses over a long period, but its strength is lower, making it unsuitable for applications requiring extremely high strength.

2219-T37 Aluminum vs. 2219-T87 Aluminum Mechanical Properties

• 2219-T87 aluminum: Due to its artificial aging process, 2219-T87 aluminum has the highest tensile strength, yield strength, and shear strength. This alloy condition makes it excel in high-load applications and is suitable for structural components that require extremely high strength. Its strengthening effect makes it ideal for environments subjected to sudden large loads, such as critical structural components in aerospace, including aircraft fuselages and engine components.
• 2219-T37 aluminum: 2219-T37 aluminum, on the other hand, excels in long-term repeated load environments due to its higher fatigue strength. Although its tensile strength, yield strength, and shear strength are lower than those of 2219-T87 aluminum, its outstanding fatigue performance makes it very suitable for medium-strength and high-fatigue strength applications, such as aircraft landing gear, structural frames, and other components that endure repeated stresses over a long period.

2219-T37 Aluminum vs. 2219-T87 Aluminum Thermal Properties

In terms of thermal conductivity and electrical conductivity, 2219-T37 aluminum and 2219-T87 aluminum are very similar. The differences in their thermal and electrical properties are minimal, so there will be no significant performance difference in applications requiring these properties.

2219-T37 Aluminum vs. 2219-T87 Aluminum Electrical Properties

2219-T37 Aluminum and 2219-T87 Aluminum Ductility and Fatigue Performance

2219-T87 Aluminum Ductility and Fatigue Performance

Despite having extremely high strength, its elongation at fracture and fatigue strength are slightly lower. This means that while it can withstand higher instantaneous loads, its durability under repeated stress is slightly inferior to 2219-T37 aluminum.

2219-T37 Aluminum Ductility and Fatigue Performance

With better fatigue strength, it is suitable for use in repeated load environments. Its ductility is superior to that of 2219-T87 aluminum, allowing it to absorb more deformation during loading without easily fracturing.

2219-T37 Aluminum and 2219-T87 Aluminum Applications

2219-T87 Aluminum

Due to its higher strength, it is suitable for structural components in the aerospace industry that need to withstand high loads, such as aircraft fuselages, engine components, and more.

It is suitable for environments that require extremely high strength, especially in cases of extreme loads.

2219-T37 Aluminum

Due to its higher fatigue strength, it is suitable for applications under long-term repeated loading, such as structural frames, aircraft landing gears, and other components requiring high fatigue resistance.

It is also suitable for certain applications in the aerospace industry, especially those that require high fatigue resistance.

How to Choose 2219-T37 Aluminum and 2219-T87 Aluminum?

The choice between 2219-T37 aluminum and 2219-T87 aluminum mainly depends on the specific requirements of the application environment, especially in terms of strength and fatigue durability.

• Choose 2219-T87 Aluminum: When the application environment requires extremely high strength to withstand instantaneous large loads, especially for critical structural components that require high tensile strength, yield strength, and shear strength, such as main structures of aircraft and engine components.
• Choose 2219-T37 Aluminum: When the application requires excellent fatigue strength and long-term repeated load endurance, especially for components like landing gears, structural frames, and other parts that endure continuous cyclical loads.

High Tensile Strength, Yield Strength, and Shear Strength Requirement (Choose 2219-T87 Aluminum)

2219-T87 aluminum, strengthened by artificial aging, provides the highest tensile strength, yield strength, and shear strength, making it suitable for applications that need to withstand instantaneous high loads. In extreme environments, such as aerospace fields including aircraft fuselages, engine structures, and other critical high-load components, this high-strength aluminum alloy ensures the stability and safety of the structure.

For situations requiring high instantaneous load-bearing capacity and strength, the strength advantages offered by 2219-T87 aluminum make it the preferred material. For example, in aircraft structures, main beams, skin, fuselage frames, and other parts requiring high tensile strength are well-suited for this material.

Long-Term Repeated Load and Excellent Fatigue Strength Requirement (Choose 2219-T37 Aluminum)

After solid solution heat treatment and natural aging, 2219-T37 aluminum, though having lower tensile strength, yield strength, and shear strength, exhibits significant fatigue strength, allowing it to maintain excellent durability under long-term repeated loads. For components that need to maintain fatigue resistance over time, such as aircraft landing gears and structural frames, 2219-T37 aluminum is the more suitable choice.

In the aerospace and aviation fields, many components are subjected to long-term repeated stress. These parts typically do not endure extreme instantaneous loads, but must withstand fatigue damage from repeated use. Therefore, the fatigue performance advantage of 2219-T37 aluminum makes it an ideal material, especially for use in landing gear components, fuselage frames, seats, and other structural parts that require long-term fatigue durability.