2124 aluminum alloy is a copper-containing wrought aluminum alloy designed for high-strength aerospace applications requiring excellent fatigue resistance and damage tolerance. T851 temper (solution heat-treated, stress-relieved by controlled stretching, and artificially aged) provides peak strength with improved stress-corrosion cracking resistance compared to T4, making it suitable for critical structural components in aircraft and missiles operating at temperatures up to approximately 150°C.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Shear Modulus(G) | 4,000 | ksi | 22°C · Plate |