2014-T651 Aluminum vs. 2014-T6511 Aluminum

2014-T651 aluminum is suitable for structural components with high strength and shear requirements, while 2014-T6511 aluminum excels in applications that require good fatigue strength, especially in high-performance aerospace structures that need to withstand cyclic loads.

Comparison Table of 2014 T651 Aluminum and 2014 T6511 Aluminum Properties

Property Indicator	2014-T651 Aluminum	2014-T6511 Aluminum
Ultimate Tensile Strength	Slightly Higher	Similar to 2014-T651
Shear Strength	Slightly Higher	Similar to 2014-T651
Elongation	Relatively Low	Similar to 2014-T651
Fatigue Strength	Relatively Low	Slightly Higher (More Fatigue Resistant)
Main Applications	High-strength structural parts, aerospace components	Aerospace field, high fatigue resistance requirements

2014-T651 Aluminum vs. 2014-T6511 Aluminum Mechanical Properties

Property	2014-T651 Aluminum	2014-T6511 Aluminum
Elastic (Young's, Tensile) Modulus, GPa	72	72
Elongation at Break, %	7.5	6.0
Fatigue Strength, MPa	130	140
Poisson's Ratio	0.33	0.33
Shear Modulus, GPa	27	27
Shear Strength, MPa	290	280
Tensile Strength: Ultimate (UTS), MPa	490	480
Tensile Strength: Yield (Proof), MPa	420	400

2014-T651 Aluminum vs. 2014-T6511 Aluminum Characteristics

2014-T651 Aluminum

2014-T651 aluminum alloy is a high-strength alloy in the aluminum-copper series, widely used in aerospace and mechanical structures.

2014-T651 Aluminum Characteristics

Ultimate Tensile Strength (UTS): 2014-T651 aluminum generally has a high ultimate tensile strength, capable of withstanding large tensile stresses, making it suitable for applications requiring high strength.
Shear Strength: 2014-T651 aluminum also has high shear strength, making it suitable for components subjected to shear loads, such as aircraft structural parts.
Elongation: The elongation is relatively low, which means its ductility is poor. 2014-T651 aluminum performs very well when there is a balance between high strength and strength/ductility requirements.

2014-T6511 Aluminum

2014-T6511 aluminum is a further processed version of 2014-T651 aluminum, with the main improvement in fatigue strength. It retains the high strength characteristics of 2014-T651 aluminum but has better resistance to fatigue loading.

2014-T6511 Aluminum Characteristics

Fatigue Strength: 2014-T6511 aluminum has slightly higher fatigue strength than 2014-T651 aluminum, meaning it performs better under repeated or cyclic loading conditions. Therefore, it is especially suitable for applications requiring resistance to cyclic loads, such as aircraft wings and other aerospace structures.
Ultimate Tensile Strength and Shear Strength: Similar to 2014-T651 aluminum, 2014-T6511 aluminum also has high ultimate tensile strength and shear strength, but its fatigue strength is superior.
Elongation: The elongation is similar to 2014-T651 aluminum, still relatively low, showing a tendency toward brittleness.

2014 T651 Aluminum and 2014 T6511 Aluminum Applications

2014-T651 Aluminum Applications

2014-T651 aluminum alloy, with its excellent strength properties, is widely used in aircraft structures, mechanical parts, and components that need to withstand high loads. Its high tensile strength and shear strength make it an ideal choice for key structures in the aerospace field, such as aircraft wings, fuselage frames, engine components, and other critical aerospace parts. Additionally, 2014-T651 aluminum is used in high-load machinery and industrial equipment that operate in heavy load and high-stress environments.

2014-T6511 Aluminum Applications

2014-T6511 aluminum alloy excels in applications that require high strength and high fatigue performance, particularly in aerospace components that are subjected to repeated stresses. Due to its enhanced fatigue strength, 2014-T6511 aluminum is widely used in aircraft wings, landing gears, and other structural parts that endure cyclic loads. This makes it an ideal material choice for ensuring reliability and durability in aerospace applications, maintaining structural stability even during prolonged use.

How to Choose Between 2014 T651 Aluminum and 2014 T6511 Aluminum?

When choosing between 2014-T651 aluminum and 2014-T6511 aluminum, the decision should be based on the specific application requirements, working environment, and desired mechanical properties.

If strength and shear strength are the primary considerations, and fatigue loading is minimal, 2014-T651 aluminum should be chosen.
If the project involves frequent cyclic loading or requires high fatigue strength, particularly in aerospace applications, 2014-T6511 aluminum will be more advantageous.

Selection Factors	2014-T651 Aluminum	2014-T6511 Aluminum
Strength Requirements	2014-T651 aluminum is suitable for applications requiring high tensile and shear strength, especially for components subjected to static loads.	2014-T6511 aluminum is more advantageous in applications requiring high strength and fatigue strength, suitable for components subjected to repeated loads.
Fatigue Strength Requirements	2014-T651 aluminum has relatively low fatigue strength and is not suitable for environments that will experience long-term cyclic loading.	2014-T6511 aluminum provides higher fatigue strength, suitable for applications subjected to long-term cyclic loading.
Application Environment	2014-T651 aluminum is suitable for heavy machinery, aircraft frames, and engine components that are less likely to encounter repeated vibrations.	2014-T6511 aluminum is suitable for high-stress and fatigue-loaded aerospace structural components, such as wings and landing gears.
Cost Considerations	2014-T651 aluminum is more cost-effective, suitable for applications requiring high strength without high fatigue requirements.	2014-T6511 aluminum is more expensive, but suitable for applications requiring high fatigue performance, such as critical components in aerospace.
Typical Applications	2014-T651 aluminum is commonly used in aircraft structures, engine components, and mechanical load-bearing parts, suitable for environments with static loads or limited cyclic loads.	2014-T6511 aluminum is commonly used in aerospace components, wings, landing gears, and other parts subjected to repeated stresses, ensuring long-term durability.