2024 Aluminum T81
Verifiedmetal2024-T81 aluminum is a high-strength aluminum-copper alloy in drawn tube form, developed for aerospace applications requiring elevated strength with controlled properties. The T81 temper—achieved through solution heat treatment, controlled stretching, and natural aging—delivers ultimate tensile strength around 70 ksi with good dimensional stability suitable for structural tubing in aircraft fuselage and hydraulic systems per WW-T-700/3 specification.
aerospacestructural
Compliance & Regulations
?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | — | Pa | 5 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | — | Pa | 5 entriesClick to expand | ||
Compressive Modulus(Ec) | — | Pa | 22°C · Drawn tubing | — | |
Compressive Tangent Modulus vs Stress(Etn(σ)) | — | Pa | 11 entriesClick to expand | ||
Compressive Yield Strength(Fcy) | — | Pa | 5 entriesClick to expand | ||
Elongation at Break(εf) | — | - | 10 entriesClick to expand | ||
Poisson's Ratio(ν) | — | - | 22°C | — | |
Shear Modulus(G) | — | Pa | 22°C · Drawn tubing | — | |
Ultimate Shear Strength(Fsu)3 entries | Curve (6 pts) | Pa | — | — | |
| ↳ | Curve (7 pts) | Pa | — | — | |
| ↳ | Curve (7 pts) | Pa | — | — | |
Stress–Strain Curve(σ–ε)4 entries | Curve (10 pts) | Pa | 21°C · L | — | |
| ↳ | Curve (11 pts) | Pa | 21°C · LT | — | |
| ↳ | Curve (11 pts) | Pa | 21°C · L | — | |
| ↳ | Curve (11 pts) | Pa | 21°C · LT | — | |
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | Pa | 11 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | — | Pa | 11 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | — | Pa | 11 entriesClick to expand | ||
Young's Modulus(E) | — | Pa | 22°C · Drawn tubing | — | |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
| 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) | — | — |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | 22°C | — |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
Quality & Standards
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.