2024 Aluminum T861
metal· T86
2024-T861 is a precipitation-hardened aluminum-copper alloy (Al-Cu-Mg) subjected to solution heat treatment, controlled stretching, and artificial aging to achieve peak strength and improved stress-corrosion cracking (SCC) resistance. This temper provides tensile strength of approximately 65–73 ksi with enhanced resistance to sustained-load cracking compared to T4, making it suitable for highly stressed aerospace structural components where both strength and SCC resistance are critical.
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 | 6 entriesClick to expand | ||
Compressive Modulus(Ec) | — | Pa | 22°C · Drawn tubing | — | |
Compressive Tangent Modulus vs Stress(Etn(σ)) | — | Pa | 9 entriesClick to expand | ||
Compressive Yield Strength(Fcy)4 entries | Curve (14 pts) | Pa | L | — | |
| ↳ | Curve (9 pts) | Pa | L | — | |
| ↳ | Curve (10 pts) | Pa | L | — | |
| ↳ | Curve (10 pts) | Pa | L | — | |
Elongation at Break(εf) | — | - | 9 entriesClick to expand | ||
Poisson's Ratio(ν) | — | - | 22°C | — | |
Residual Strength vs Initial Crack Length(Fr(2a0))3 entries | Curve (14 pts) | Pa | 21°C | — | |
| ↳ | Curve (9 pts) | Pa | 21°C | — | |
| ↳ | Curve (3 pts) | Pa | 21°C | — | |
Shear Modulus(G) | — | Pa | 22°C · Drawn tubing | — | |
Ultimate Shear Strength(Fsu)4 entries | Curve (12 pts) | Pa | — | — | |
| ↳ | Curve (8 pts) | Pa | — | — | |
| ↳ | Curve (7 pts) | Pa | — | — | |
| ↳ | Curve (9 pts) | Pa | — | — | |
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | Pa | 9 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | — | Pa | 9 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | — | Pa | 9 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.