2024 Aluminum T4 is a copper-aluminum alloy in solution heat-treated and naturally aged condition, providing tensile strength of approximately 70 ksi (485 MPa) with good fatigue resistance and machinability, commonly used in aircraft fuselage skin, wing structures, and high-stress fasteners where moderate strength and damage tolerance are required. The T4 temper offers superior fracture toughness compared to the overaged T3 condition, though with slightly lower strength, making it the preferred specification for critical aerospace structures subject to fatigue and impact loading.
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54 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) | 10,700 | ksi | 22°C · Drawn tubing | ||
Compressive Tangent Modulus vs Stress(Etn(σ)) | Curve (9 pts) | ksi | 21°C · L | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 4,000 | ksi | 22°C · Drawn tubing | ||
S–N Curve (Wöhler)(S–N) | — | ksi | 49 entriesClick to expand | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain))2 entries | Curve (7 pts) | ksi | 21°C · L | ||
| ↳ | Curve (7 pts) | ksi | 21°C · L | ||
Torsional Modulus of Rupture vs D/t(Fst(D/t)) | Curve (5 pts) | ksi | 21°C | ||
Ultimate Tensile Strength(σUTS) | Curve (20 pts) | ksi | L | ||
Young's Modulus(E) | 10,500 | ksi | 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) | µin/in·°F | — | ||
Specific Heat vs Temperature(Cp(T)) | Curve (11 pts) | BTU/(lb·°F) | — | ||
Thermal Conductivity vs Temperature(k(T)) | Curve (15 pts) | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1000 | lb/in³ | 22°C |