2014A T651 aluminum alloy is an Al-Cu (Aluminum-Copper) based alloy developed for engineering applications requiring high strength. This alloy is widely used in the aerospace and defense industries due to its high mechanical strength, good machinability, and heat-treatable strengthening capability. The T651 temper indicates that the alloy has undergone solution heat treatment followed by artificial aging and stress relief. This treatment improves the material’s dimensional stability, strength, and service performance.

2014A T651 alloy is known particularly for its high tensile strength and yield strength. In terms of mechanical properties, its strength level is similar to the 2024 alloy, while in certain temper conditions it may provide higher strength than the 2017A alloy. However, the 7075 alloy generally reaches higher strength levels. Therefore, 2014A T651 is preferred in applications where a balanced performance between strength and machinability is required rather than extremely high strength.

In terms of corrosion resistance, the 2014A alloy, due to its copper content, does not provide corrosion resistance as high as 5xxx or 6xxx series alloys. Therefore, anodizing, painting, or other surface treatments are often applied in many applications. It offers good coating capability, and surface performance can be improved especially with anodic coating. This feature makes it safer for use particularly in aerospace structural components.

Machinability is one of the most significant advantages of the 2014A T651 alloy. During machining, it produces good chip formation and is suitable for manufacturing high-precision components. For this reason, it is used in applications such as aerospace fasteners, high-strength mechanical parts, machine components, and automotive parts. However, its bending capability is limited, and cold forming ability is relatively low in the T651 temper condition. Its weldability is also considered limited, and mechanical fastening methods are generally preferred instead of welding.

In terms of vibration and fatigue behavior, 2014A T651 offers good fatigue resistance, making it suitable for structural applications exposed to dynamic loads. It is commonly used in aircraft structural components, landing gear parts, military equipment, and high-performance machine components. While the 6061 alloy provides better corrosion resistance and weldability, and the 7075 alloy provides higher strength, 2014A offers a balanced combination of these properties, making it a suitable alternative for many engineering applications.

STANDARDS FOR MATERIAL COMPOSITION

2014A T651 can be supplied in accordance with the following standards:
• 2014A T651 Plate; ASTM B209, ISO AlCu4SiMg, UNS A9201, BS 2 L93, WNR 3.1255
• 2014A T651 Sheet; ASTM B209, ISO AlCu4SiMg, UNS A9201, BS 2 L93, WNR 3.1255
• 2014A T651 Cold Drawn Round Bar; ASTM B211, UNS A92014, ASTM B928
• 2014A T651 Cold Drawn Flat Bar; ASTM B211, UNS A92014, ASTM B928
• 2014A T651 Cold Drawn Wire; ASTM B211, UNS A92014, ASTM B928
• 2014A T651 Cold Drawn Tube; ASTM B211, UNS A92014, ASTM B928
 

Characteristic Properties of 2014A T651: 

• Strength: Excellent
• Machinability: Very Good
• Weldability: Weak (Filler welding is the best option)
• Formability: Good
• Corrosion Resistance: Poor (Improves with coating)
• Heat Treatment: Yes
   

Some Well-Known Applications of 2014A T651: 
Heat exchangers, cooling towers,
Military vehicle manufacturing and weapon production,
Generally used in aerospace and automotive industries.
 

STOCK
We supply 2014A T651 in plate/sheet, bar/flat bar, and tube/profile forms.

• Plate / Sheet
• Sheet
• Bar / Flat Bar
• Tube / Profile