| All data is for information only------(Home) | |
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| PRODUCT DATA of AA7001-T75 |
| Material | AA7001-T75 |
| General Information | Obsolete alloy |
| Chemical Composition | 0.18 - 0.35Cr, 1.6 - 2.6Cu, 2.6 - 3.4Mg, 6.8 - 8Zn, rem Al |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Equivalent Designations | UNS A97001, AA 7001 |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.84 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 71 GPa |
| Shear Modulus | 27 GPa |
| Poisson Ratio | 0.33 |
| MECHANICAL PROPERTIES |
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| Ultimate Tensile Strength | 580 MPa |
| Proof Stress (0.2%) | 495 MPa |
| Elongation | 12 % |
| Hardness | 181 Hv |
| Shear Strength | 340 MPa |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 5e-8 ohm.m |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 140 W/m.K |
| Thermal Expansion Coefficient | 23.4 µstrain/°C |
| Specific Heat | 0.86 J/g.K |
| Melting Range | 477 to 627 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | Requires specific corrosion protection |
| Stress Corrosion Status | Moderate Resistance to SCC: Table 2 Remark: Requires Stress corrosion evaluation form Data Quality: Design Data |
| Bimetallic Corrosion | Can be used in a non-controlled environment: Al alloys, Cd
Can be used in a clean room environment: Mg, Sn-Pb alloys (all), Sn, Pb, Zn, Be Needs specific measures: All others Test: ECSS-Q-ST-70C Rev.1 Table 5.1 Data Quality: Design Data |
| SPECIAL RECOMMENDATIONS |
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| Lessons Learned | In some cases, this alloy responds poorly to black anodising |