7050 vs 7055
Property comparison of 7050 and 7055, both aluminum alloy.
| Property | 7050 | 7055 | Difference |
|---|---|---|---|
| Yield strength | 434 MPa | 592.97 MPa | +37% |
| Tensile strength | 496 MPa | 613.66 MPa | +24% |
| Elongation | 12 % | 7 % | -42% |
| Elastic modulus | 73,000 MPa | 71,019 MPa | -3% |
| Shear modulus | 26,000 MPa | 26,891 MPa | +3% |
| Poisson ratio | 0.33 | 0.33 | 0% |
| Density | 2,700 kg/m³ | 2,851 kg/m³ | +6% |
Difference is 7055 relative to 7050. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ANSI
- heat treatment
- Wrought
- grade
- —
- standard
- MIL-HDBK-5J
- heat treatment
- Wrought
- grade
- 7055
About 7xxx aluminum alloys
7xxx aluminum alloys are alloyed with zinc and reach the highest strengths in the wrought family. Weldability is poor and corrosion resistance trails 5xxx and 6xxx. 7075 is the aerospace standard for highly loaded structure; 7050 trades a small amount of strength for better fracture toughness.
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