7049/7149 Aluminum T73
Verifiedmetal7049/7149 aluminum is a high-strength zinc-copper-magnesium alloy used primarily in aircraft structural components and landing gear requiring superior fatigue resistance and stress-corrosion cracking (SCC) resistance. The T73 temper is overaged to provide improved SCC resistance at slight strength reduction compared to T6, maintaining excellent bearing and shear properties with yield strength around 450-475 MPa and ultimate tensile strength around 520-540 MPa.
aerospacestructural
Compliance & Regulations
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Property OverviewNormalized to typical max values
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Heat Treatment
Temper
Thickness
e/D Ratio
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 95.00 – 138 | ksi | 26 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 70.00 – 99.00 | ksi | 26 entriesClick to expand | ||
Compressive Modulus(Ec) | 10,600 | ksi | 22°C · Hand forging | ||
Compressive Tangent Modulus vs Stress(Etn(σ)) | — | ksi | 5 entriesClick to expand | ||
Compressive Yield Strength(Fcy) | 51.00 – 66.00 | ksi | 30 entriesClick to expand | ||
Elongation at Break(εf) | 2.000 – 9.000 | - | 19 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 3,900 | ksi | 22°C · Die forging | ||
Ultimate Shear Strength(Fsu) | 37.00 – 42.00 | ksi | 19 entriesClick to expand | ||
S–N Curve (Wöhler)(S–N) | — | ksi | 9 entriesClick to expand | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | ksi | 10 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 66.00 – 74.00 | ksi | 25 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 55.00 – 64.00 | ksi | 25 entriesClick to expand | ||
Young's Modulus(E) | 10,200 | ksi | 22°C · Die forging | ||
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 | |
|---|---|---|---|---|---|
Density(ρ) | 0.1030 | lb/in³ | 22°C |
Rows with are inherited from the base material
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
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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.