2024-T851X is an age-hardened aluminum-copper alloy (4.4% Cu, 1.5% Mg, 0.6% Mn) in a stress-relieved condition achieved through controlled stretching after solution heat treatment and artificial aging, delivering high strength (yield ~405 MPa, ultimate ~485 MPa) with improved stress-corrosion cracking resistance compared to T4 variants. Primary applications include aircraft fuselage skins, stringers, and other structural components requiring fatigue and damage-tolerance performance in the -55°C to +120°C operating range.
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7 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 | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 73.77 | GPa | 22°C · Drawn tubing | ||
Compressive Tangent Modulus vs Stress(Etn(σ))2 entries | Curve (12 pts) | Pa | 21°C · L | ||
| ↳ | Curve (10 pts) | Pa | 21°C · LT | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 27.58 | GPa | 22°C · Drawn tubing | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain))4 entries | Curve (8 pts) | Pa | 21°C · L | ||
| ↳ | Curve (8 pts) | Pa | 21°C · L | ||
| ↳ | Curve (7 pts) | Pa | 21°C · LT | ||
| ↳ | Curve (7 pts) | Pa | 21°C · LT | ||
Ultimate Tensile Strength(σUTS) | Curve (20 pts) | Pa | L | ||
Young's Modulus(E) | 72.39 | GPa | 22°C · Drawn tubing |
3 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 | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T)) | Curve (12 pts) | 1/K | — | ||
Specific Heat vs Temperature(Cp(T)) | Curve (11 pts) | J/(kg·K) | — | ||
Thermal Conductivity vs Temperature(k(T)) | Curve (15 pts) | W/(m·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.768 | kg/m³ | 22°C |