The 2219 T851 aluminum alloy is known for its high strength and excellent durability. Belonging to the aluminum-copper alloy class, this material is especially used in industries requiring high performance, such as aerospace, space, and military applications. The T851 temper is achieved by a special heat treatment applied to the 2219 alloy, increasing its durability and stress resistance. This feature ensures safe use of the alloy under harsh conditions while offering lightweight and a high strength-to-weight ratio.

The suitability of the 2219 T851 alloy for anodizing is limited. Its high copper content prevents the formation of an effective oxide layer during the anodizing process. Therefore, 2219 T851 is typically protected using alternative coating methods. Regarding weldability, the 2219 T851 aluminum alloy requires careful welding due to its copper content. High copper content can increase the risk of cracking during welding; therefore, special welding techniques and appropriate filler materials should be used to minimize this risk.

In terms of bending and forming, the 2219 T851 aluminum alloy requires caution due to its high strength. However, bending and forming can be successfully performed using proper processing methods. This alloy can also be used in high-vibration environments. With its high elastic modulus and durability, it can be safely used in engine parts, aircraft structural components, and other parts exposed to vibration.

Regarding corrosion resistance, the 2219 T851 aluminum alloy has lower corrosion resistance compared to other aluminum alloys due to its copper content. This may limit its use in harsh conditions such as marine and humid environments. However, these limitations can be overcome with proper coating methods and surface treatments, improving the alloy’s corrosion resistance. The advantages of the 2219 T851 aluminum alloy include high strength, light weight, and durability, while its disadvantages include lower corrosion resistance and welding difficulties.
 

STANDARDS FOR MATERIAL COMPOSITION

The 2219 T851 alloy can conform to the following standards:
• 2219 T851 Sheet; AMS 4295D, UNS A92219, ISO AlCu6Mn, ASTM B209, AMS QQ-A-250/30A
• 2219 T851 Plate; AMS 4295D, UNS A92219, ISO AlCu6Mn, ASTM B209, AMS QQ-A-250/30A
• 2219 T851 Cold Drawn Rod; AMS 4163, UNS A92219, ISO AlCu6Mn, ASTM B221
• 2219 T851 Cold Drawn Bar; AMS 4163, UNS A92219, ISO AlCu6Mn, ASTM B221
• 2219 T851 Wire; AMS 4163, UNS A92219, ISO AlCu6Mn, ASTM B221
• 2219 T851 Tube; AMS 4163, UNS A92219, ISO AlCu6Mn, ASTM B221
• 2219 T851 Cold Drawn Seamless Tube; AMS 4066 (replaces AMS 4065), UNS A92219, ISO AlCu6Mn, ASTM B241
 

Characteristic Properties of 2219 T851: 

• Strength: Excellent
• Machinability: Low
• Weldability: Very Good
• Formability: Fair
• Corrosion Resistance: Above Average
• Heat Treatment: Yes
   

Common Applications of 2219 T851:
Landing gear of aircraft,
Bicycle frames and fuel tanks,
Reinforced engines and their structural frames.
 

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We produce and supply 2219 T851 in sheet/plate, rod/bar, and tube/profile forms.​

• Sheet/Plate
• Rod / Bar
• Tube / Profile