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The 2219 T851 aluminum sheet is a high-performance material designed for demanding aerospace applications. This alloy is available in multiple tempers, including O, T31, T81, and T851, allowing you to select the most suitable specification based on your project and processing requirements.
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The 2219-T851 aluminum sheet is a premium aerospace-grade Al-Cu alloy known for its exceptional strength, rigidity, and low weight. These properties make it a preferred choice for critical structures in aircraft and rocket systems.
Under the T851 temper, the alloy undergoes a specialized heat-treatment process that significantly boosts its structural strength, toughness, and long-term stability. This allows 2219 aluminum to maintain reliable mechanical performance and resist deformation even in high-temperature or extreme operating environments, ensuring consistent durability in demanding aerospace applications.
1.High strength+high rigidity+lightweight performance The 2219 Al-Cu alloy delivers an impressive combination of high ultimate tensile strength, excellent yield strength, and low weight. This balance makes it ideal for components that require strong load-bearing capacity without adding unnecessary mass.
2.Excellent fatigue resistance Its stable mechanical behavior under cyclic loading makes 2219 aluminum suitable for long-life structures exposed to repeated stress, including aerospace frames, aircraft skins, and other high-duty applications.
3.Reliable weldability and machinability After proper preheating, 2219 aluminum can be welded, machined, deep-drawn, or stamped into complex shapes. This processing flexibility helps manufacturers achieve precise structural designs with consistent performance.
4.High dimensional stability The alloy maintains its shape and structural integrity even when operating in high-temperature or corrosive environments. It also offers strong resistance to stress-corrosion cracking, reducing deformation risks during long-term service.
| Product Name | 2219 T851 Aluminum sheet for Aerospace |
| Standards | ASTM B209, AMS 4117, AMS-QQ-A-250/30, AMS 4094 |
| Thickness | 6 mm – 200 mm (custom thin gauges available from 2–3 mm) |
| Width | 1000 mm – 2500 mm (stock : 1250 mm / 1500 mm / 2000 mm) |
| Length | 2000 mm – 8000 mm, customizable upon request |
| Surface Finish | clad;Mill Finish; Brushed/Polished ; Protective PVC Film available |
| MOQ | 2 ton |
| Service | cut-to-size available |
| Certification | EN 10204 3.1,CE,ISO,SGS,Quality Inspection Certificate |
We can also provide specifications for 2219 aluminum sheets in other tempers, including O.T31, T81, and others. Contact us now for information on other tempers.
| Aluminum (Al) | 91.5–93.8% |
| Copper (Cu) | 5.8–6.8% |
| Manganese (Mn) | 0.20–0.40% |
| Zirconium (Zr) | 0.10–0.25% |
| Titanium (Ti) | 0.02–0.10% |
| Vanadium (V) | 0.05–0.15% |
| Iron (Fe) | ≤ 0.30% |
| Magnesium (Mg) | ≤ 0.02% |
| Silicon (Si) | ≤ 0.20% |
| Zinc (Zn) | ≤ 0.10% |
| Other(Total) | ≤ 0.15% |
| Density | 2.84 g/cm³ |
| Young’s Modulus (Elastic Modulus) | 73.1 GPa |
| Ultimate Tensile Strength (UTS) | 455 MPa |
| Yield Strength (0.2% Offset) | 352 MPa |
| Elongation at Break | 7–10% (depending on thickness and plate specification) |
| Brinell Hardness (HB) | 130 HB |
| Fatigue Strength | 103 MPa |
| Thermal Expansion / Thermal Stability | Maintains good strength over a wide temperature range; suitable for cryogenic to elevated-temperature applications. |
The 2219-T851 aluminum sheet often undergoes a cladding treatment to improve its durability in demanding conditions. This makes it well-suited for use in high-pressure, high-temperature, and extreme aerospace environments where reliability is essential.
1.Aerospace & Aircraft Structures
2219-T851 is widely used in key aircraft components such as fuselage skins, wing structures, airframe panels, support members, fuselage frames, and fuel tanks. Its combination of high strength, thermal stability, and dependable weldability makes it an excellent match for modern aerospace structural requirements.
2.Rocket, Satellite, and Spacecraft Components
This alloy is also a preferred material for rockets and space vehicles, where weight reduction, strength retention, temperature resistance, and long fatigue life are critical. Its stability under extreme thermal and mechanical loads makes it ideal for fuel tanks and primary structural assemblies.
3.High-Stress, High-Temperature Industrial Components
Beyond aerospace, 2219 T851 performs well in environments involving heavy loads, cyclic stresses, or significant temperature fluctuations. It is suitable for components requiring high rigidity, long-term stability, and resistance to fatigue or deformation.
4.Large or Customized Welded Structures
Thanks to its good weldability—when used with proper preheating and post-treatment—2219-T851 aluminum can be fabricated into large welded assemblies and complex structural parts. This makes it valuable for applications that require both high strength and reliable joining performance.
