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Aluminium Alloy 7050 Aerospace Bar / Plate
Aluminium alloy 7050 is an aerospace grade of aluminium combining high strength, stress corrosion cracking resistance and toughness. It is particularly suited for heavy plate applications (3" to 6" thick) due to it's lower quench sensitivity and retention of strength in thicker sections. Aluminium 7050 therefore is the premium choice aerospace aluminium for applications such as fuselage frames, bulkheads and wing skins.
Aluminium alloy 7050 plate is available in two tempers. T7651 (AMS 4201) combines the highest strength with good exfoliation corrosion resistance and average SCC resistance. T7451 (AMS 4050) provides better SCC resistance and excellent exfoliation resistance at slightly lower strength levels. Aircraft Materials can also supply 7050 in round bar with temper T74511 (AMS 4342).
| Chemical Composition Limits | ||||||||||||
| Weight% | Al | Zr | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Other Each | Others Total |
| Alloy 7050 min | 87.3 | 0.08 | - | - | 2.0 | - | 1.9 | - | 5.7 | - | - | - |
| Alloy 7050 max | 90.3 | 0.15 | 0.12 | 0.15 | 2.6 | 0.10 | 2.6 | 0.04 | 6.7 | 0.06 | 0.05 | 0.15 |
Typical Mechanical Properties
| Material | Temper | Thickness | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation in 2" % |
| Alloy 7050 Plate (longitudinal) | T7451 | <2.0 | 74 | 64 | 10 |
| Alloy 7050 Plate (longitudinal) | T7451 | 2.0 -3.0 | 73 | 63 | 9 |
| Alloy 7050 Plate (longitudinal) | T7451 | 3.0 - 4.0 | 72 | 62 | 9 |
| Alloy 7050 Plate (longitudinal) | T7451 | 4.0 - 5.0 | 71 | 61 | 9 |
| Alloy 7050 Plate (longitudinal) | T7651 | 0.25 - 1.0 | 76 | 66 | 9 |
| Alloy 7050 Plate (longitudinal) | T7651 | 1.0 - 1.5 | 77 | 67 | 9 |
| Alloy 7050 Plate (longitudinal) | T7651 | 1.5 - 2.0 | 76 | 66 | 9 |
| Alloy 7050 Plate (longitudinal) | T7651 | 2.0 - 3.0 | 76 | 66 | 8 |
| Material | Temper | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation in 2" % |
| Alloy 7050 Bar (AMS 4340) | T76511 | 79 | 69 | 7 |
| Alloy 7050 Bar (AMS 4340) | T73511 | 70 | 60 | 8 |
| Alloy 7050 Bar (AMS 4342) | T74511 | 73 | 63 | 7 |
Availability
Aluminum Alloy 7050 is available in Plate, Extruded Wire, Wire, Rod and Bar. View Plate stock for all other stock availability of Aluminium Alloy 7050 contact Sales.
Specifications
| Specifications | Extrustions /Part Numbers | |
| AMS 4050: 7050-T7451 Plate AMS 4107:7050-T74 Die Forging AMS 4108:7050-T7452 Hand Forgings AMS 4201: 7050-T7651 Plate AMS 4333: 7050-T7452 Forgings AMS 4340: 7050-T76511 Extrusions AMS 4341: 7050-T73511 Extrusions AMS 4342: 7050-T74511 Extrusions | BAC1505-100403-7050-T76511 BAC1506-43-7050T76511 BAC1510-1355-7050T76511 BAC1518-940/7050T76511 BAC1520-1397-7050T76511 |
