| All data is for information only------(Home) | |
|---|---|
| PRODUCT DATA of AA7020-T6 |
| Material | AA7020-T6 |
| General Information | Heat treatable high strength weldable alloy. High fatigue strength. High strength in welded structures. |
| EXPERIENCE IN PRACTICE |
|---|
| Equivalent Designations | AA7005, AA 7005, AA 7020, AlZn4.5Mg1, A-Z5G, 3.4335, D74S |
| PHYSICAL PROPERTIES |
|---|
| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 2.78 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
|---|
| Tensile Modulus | 70 GPa |
| Shear Modulus | 26.4 GPa |
| MECHANICAL PROPERTIES |
|---|
| Ultimate Tensile Strength | 350 MPa(minimum) |
| Proof Stress (0.2%) | 290 MPa(minimum) |
| Elongation | 8 %(minimum) |
| Hardness | 125 |
| THERMAL PROPERTIES |
|---|
| Thermal Conductivity | 140 W/m.K |
| Thermal Expansion Coefficient | 23.3 µstrain/°C |
| Specific Heat | 0.873 J/g.K |
| Melting Range | 605 to 645 °C |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
|---|
| General Corrosion Status | Requires specific corrosion protection |
| Stress Corrosion Status | Low Resistance to SCC: Table 3 Remark:Including weldments 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 |