6061-T451 is a precipitation-hardened aluminum alloy containing magnesium and silicon, solution heat-treated and stress-relieved by controlled stretching to provide dimensional stability and improved machinability for critical aerospace and structural applications. This temper delivers moderate strength with excellent corrosion resistance and fracture toughness, suitable for aircraft fittings, fasteners, and components requiring precision dimensional control in rolled or drawn forms per AMS 4128 and AMS-QQ-A-225/8.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 434.4 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · t=0.500-8.000 in · e/D=1.5 | ||
Bearing Yield Strength(Fbry)2 entries | 151.7 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · t=0.500-8.000 in · e/D=1.5 | ||
| ↳ | 179.3 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · t=0.500-8.000 in · e/D=2 | ||
Compressive Modulus(Ec) | 69.64 | GPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes | ||
Compressive Yield Strength(Fcy)2 entries | 96.53 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · L · t=0.500-8.000 in | ||
| ↳ | 137.9 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · LT · t=0.500-8.000 in | ||
Elongation at Break(εf) | 18.00 | - | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · L · t=0.500-8.000 in | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.20 | GPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes | ||
Ultimate Shear Strength(Fsu) | 330.9 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · t=0.500-8.000 in | ||
Ultimate Tensile Strength(σUTS) | 206.8 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · L · t=0.500-8.000 in | ||
Yield Strength (0.2% offset)(σy) | 110.3 | MPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes · T451 · AMS 4128 & AMS-QQ-A-225/8 · L · t=0.500-8.000 in | ||
Young's Modulus(E) | 68.26 | GPa | 22°C · Rolled, drawn, or cold-finished rod and special shapes |
2 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 (11 pts) | 1/K | — | ||
Specific Heat vs Temperature(Cp(T)) | Curve (17 pts) | J/(kg·K) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.713 | kg/m³ | 22°C |