2519 aluminum alloy is a copper-lithium-magnesium aluminum alloy designed for cryogenic and elevated-temperature aerospace applications, offering high strength-to-weight ratio with excellent fracture toughness at temperatures from -320°F to 350°F. The T87 temper (solution heat-treated, overaged, and artificially aged) provides controlled yield and ultimate strength with improved stress-corrosion cracking resistance compared to T8 tempers, making it suitable for critical aircraft fuselage and structural applications per MIL-DTL-46192 specifications.
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6 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 710.2 – 930.8 | MPa | 8 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 586.1 – 689.5 | MPa | 8 entriesClick to expand | ||
Compressive Modulus(Ec) | 74.46 | GPa | 22°C · Plate | ||
Compressive Tangent Modulus vs Stress(Etn(σ))2 entries | Curve (11 pts) | Pa | 21°C · L | ||
| ↳ | Curve (13 pts) | Pa | 21°C · LT | ||
Compressive Yield Strength(Fcy) | 393.0 – 420.6 | MPa | 10 entriesClick to expand | ||
Elongation at Break(εf) | 5.000 – 10.00 | - | 8 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 27.58 | GPa | 22°C · Plate | ||
Ultimate Shear Strength(Fsu)4 entries | 289.6 | MPa | 22°C · Plate · T87 · MIL-DTL-46192 · t=0.250-1.000 in | ||
| ↳ | 282.7 | MPa | 22°C · Plate · T87 · MIL-DTL-46192 · t=1.001-2.000 in | ||
| ↳ | 282.7 | MPa | 22°C · Plate · T87 · MIL-DTL-46192 · t=2.001-3.000 in | ||
| ↳ | 275.8 | MPa | 22°C · Plate · T87 · MIL-DTL-46192 · t=3.001-4.000 in | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain))4 entries | Curve (7 pts) | Pa | 21°C · L | ||
| ↳ | Curve (7 pts) | Pa | 21°C · L | ||
| ↳ | Curve (8 pts) | Pa | 21°C · LT | ||
| ↳ | Curve (8 pts) | Pa | 21°C · LT | ||
Ultimate Tensile Strength(σUTS) | 427.5 – 468.8 | MPa | 10 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 379.2 – 420.6 | MPa | 10 entriesClick to expand | ||
Young's Modulus(E) | 72.39 | GPa | 22°C · Plate | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.823 | kg/m³ | 22°C |