7050 Aluminum Sheet
7050 Aluminum Sheet is a high-strength heat-treatable alloy with high strength and resistance to exfoliation corrosion and stress corrosion cracking. It is often used in aircraft structural parts for medium and thick plate extrusions, free forgings and die forgings. The requirements for alloys in manufacturing such parts are: strong resistance to exfoliation corrosion and stress corrosion cracking, fracture toughness and fatigue resistance.
7050 Aluminum Sheet is a zinc-magnesium-copper type aluminum alloy used by the US Navy and Air Force to provide high-strength materials resistant to stress corrosion, primarily for thick-section applications. In addition to its high stress-corrosion resistance, it can be heat-treated and mechanically worked to give a higher toughness at a given strength level than most other 7 series aluminium alloys.
7050 Aluminum Sheet is unusual in two respects: it contains zirconium(in place of chromium) to control recrystallization and grain size and has a Cu/Mg ratio greater than 0.8. The absence of chromium contributes to 7050’s low quench sensitivity, and the relatively high copper content results in additional strengthening during second-step aging.
Product Description
| Product | 7050 Aluminum Sheet |
| Standard | GB/T3190-2008, JIS H4040:2006, JIS H4001:2006, ASTM B221M:2006, ASTM B209M:2006, IOS 209:2007(E), EN 573-3:2003 etc |
| Temper | T4/T5/T6/T62/T42/T451/T651/T351 etc. |
| Thickness | 0.5mm – 600mm |
| Width | 100mm – 3800mm |
| Length | As requirement |
| Surface | Mill Finish, Oxidized, Mirror Finish, Sliver, Black, etc. |
| Mill Certificate | EN10204/3.1 |
| Package | Wooden Package, less than 2 tons per case |
| Delivery time | Normally 15 working days |
Chemical Composition
|
Grade |
Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Other |
| 7050 | 0.12 | 0.15 | 2.0-2.6 | 0.1 | 1.9-2.6 | 0.04 | 5.7-6.7 | 0.06 | 0.05-0.15 |
Mechanical Properties
| Aluminum Alloy Number and Condition | Tensile Strength (25℃, MPa) | Yield Strength (25℃, MPa) | Hardness (HB, 500kg Force, 10mm Ball) | Elongation of 1.6mm (1/16in) Thickness |
| 7050-T7451 | 510 | 455 | 135 | 10 |
Physical Properties
| Aluminum Alloy Number and Condition | Coefficient of Thermal Expansion (20 – 100℃, μm/m·k) | Melting Point Range (℃) | Electrical Conductivity at 20℃ (68℉) (%IACS) | Electrical Resistance at 20℃ (68℉, Ωmm²/m) | Density at 20℃ (g/cm³) |
| 7050-T7451 | 23.5 | 490 – 630 | 41 | 0.0415 | 2.83 |
Alloy 7050 aluminum is the principal choice for aerospace applications, especially in the 3-6 inch thickness range. It exhibits better toughness/corrosion resistance characteristics than the older, more established alloy 7075. Since it is less quench-sensitive than most other aerospace alloys, it maintains its strength properties in thicker sections while retaining good stress corrosion cracking resistance and fracture toughness levels. AMS 4050 is commonly associated with 7050, though various manufacturers require their specifications.
Application
Agricultural Modernization
Construction Engineering
Environmental Protection Engineering
Food Processing Industry
Intelligent Home Appliances
Medical and Health Field
New Energy Infrastructure
