7175 Aluminum T74
metal7175-T74 is a high-strength aluminum alloy (Zn-Cu-Mg system) in overaged temper, used primarily in aerospace airframes and structures requiring damage-tolerance capability. The T74 condition provides improved stress-corrosion cracking (SCC) resistance and fracture toughness compared to T6, with slightly reduced yield strength, making it suitable for critical aircraft components subject to sustained loads in marine or corrosive environments.
aerospacestructural
Compliance & Regulations
?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
Property OverviewNormalized to typical max values
Filter by
Form
Thickness
e/D Ratio
Basis
Orientation
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 105 – 142 | ksi | 8 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 84.00 – 103 | ksi | 8 entriesClick to expand | ||
Compressive Modulus(Ec) | 10,700 | ksi | 22°C · Die forging | ||
Compressive Tangent Modulus vs Stress(Etn(σ)) | — | ksi | 6 entriesClick to expand | ||
Compressive Yield Strength(Fcy) | 61.00 – 68.00 | ksi | 8 entriesClick to expand | ||
Elongation at Break(εf) | 4.000 – 7.000 | - | 12 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 3,000 | ksi | 22°C · Extrusion | ||
Ultimate Shear Strength(Fsu)4 entries | 42.00 | ksi | 22°C · Die forging · T74a,b · AMS 4149 · t=1.001-2.000 in | ||
| ↳ | 44.00 | ksi | 22°C · Die forging · T74a,b · AMS 4149 · t=1.001-2.000 in | ||
| ↳ | 43.00 | ksi | 22°C · Die forging · T74a,b · AMS 4149 · t=2.001-3.000 in | ||
| ↳ | 43.00 | ksi | 22°C · Die forging · T74a,b · AMS 4149 · t=<1.000 in | ||
S–N Curve (Wöhler)(S–N) | — | ksi | 11 entriesClick to expand | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | ksi | 12 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 65.00 – 77.00 | ksi | 13 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 55.00 – 67.00 | ksi | 13 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) | 0.1010 | lb/in³ | 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.