7075 Aluminum Sheet For Construction
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| 7075 Aluminum Sheet for Construction |
Introduce
7075 aluminum sheet is a high-strength, high-hardness aluminum alloy plate. Due to its unique composition and production process, it has excellent mechanical properties, corrosion resistance and wear resistance. It is widely used in aviation, automobiles, construction and electronic products, etc. field.
7075 aluminum alloy introduced by Alcoa in 1943, alloy 7075 has been the standard alloy in the 7xxx series of alloys.
7075 aluminum is a heat treatable aluminum alloy with zinc as the main alloying element, and it is also the strongest heat treatable alloy. It is moderately formable in the fully softened, annealed condition and can be heat treated to strength levels comparable to many steel alloys.
7075 Aluminum Sheet Composition
| Weight% | Al | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Other Each | Others Total |
| Alloy 7075 min | Rem | – | – | 1.2 | – | 2.1 | 0.18 | 5.1 | – | – | – |
| Alloy 7075 max | Rem | 0.40 | 0.50 | 2.0 | 0.30 | 2.9 | 0.28 | 6.1 | 0.20 | 0.05 | 0.15 |
Typical Physical Properties
| Characteristic | English | Metric |
| Nominal Density (68° F / 20°C) | 0.101 lbs./ in ³ | 2.80 Mg/m³ |
| Melting Range | 990° F – 1175° F | 532°C – 635 °C |
| Specific Heat (212 °F / 100°C) | 0.23 BTU/lb – °F | 960 J/kg-°K |
| Thermal Conductivity | 32.9 (% IACS) | / |
| Electrical Conductivity | 33 (%6 IACS) | / |
| Modulus of Elasticity | 72 BTU/lb x10 N/mm2 | / |
Mechanical Properties Of 7075 Aluminum Sheet
| Material | Temper | Thickness (in) | Tensile Strength (ksi) | Yield Strength (ksi) | Elongation % |
| Alloy 7075 Sheet | T6 Bare | 0.125 – 0.25 | 78 | 69 | 8 |
| Alloy 7075 Sheet | T651 Bare | 0.25 – 0.50 | 78 | 67 | 9 |
| Alloy 7075 Sheet | T651 Bare | 0.5 – 1.0 | 78 | 68 | 7 |
| Alloy 7075 Sheet | T6 Clad | 0.188 – 0.25 | 75 | 64 | 8 |
| Alloy 7075 Sheet | T651 Clad | 0.25 – 0.50 | 75 | 65 | 9 |
| Alloy 7075 Sheet | T651 Clad | 0.5 – 1.00 | 78 | 68 | 7 |
Due to 7075 aluminum sheet excellent ratio for weight-to-strength, it can be used in applications involving structural parts that are highly stressed.
It’s a popular choice for use in applications in commercial aircraft components and aerospace and defense equipment. 7075 aluminum sheet always called aircraft grade aluminum sheet.
The weldability of this metal is low, but the formability is great. When forging is used, it’s required that the alloy be placed in temperatures between 700 and 900 degrees F. Afterwards, solution heat treatment should be used.
General welding with 7075 aluminum alloy is not recommended. However, you may get good results when resistance welding alloys. The application of arc or gas welding may reduce the natural corrosion resistance of the alloy.
Typical Characteristics Of 7075 Aluminum Sheet
7075 aluminum sheet belongs to Al-Zn-Mg-Cu super duralumin, due to high zinc content, 7075 has similar strength to steel, so it has excellent fatigue resistance.
7075 aluminum sheet plate is easy to machine, which makes it a popular choice for military aircraft.
7075 aluminum alloy can be strengthened by heat treatment and is the strongest heat treatable alloy.
7075-T6 is composed of 1.6% copper, 2.5% magnesium and 5.6% zinc. It is commonly used by aircraft manufacturers to strengthen the structure of aircraft. Due to the copper content, its weldability is poor, but it has good machinability.
After solution treatment, the plasticity is good, and the strengthening effect of heat treatment is particularly good. It has high strength below 150°C, especially low temperature strength.
Poor welding performance, prone to stress corrosion cracking. Two-stage aging can improve the stress corrosion cracking resistance of the alloy.
General welding to 7075 aluminum sheet is not recommended. However, good results may be obtained when resistance welding alloys.
The application of arc or gas welding may reduce the alloy’s natural corrosion resistance.
The plasticity in the annealed and just quenched states is slightly lower than that of 2A12 in the same state, and slightly better than that of 7A04. Its stress corrosion performance is better than 7A04.
7075 T651 is known as the best product in aluminum alloy. It has high strength and is far superior to mild steel. It also has good mechanical properties and anodic reaction, and is a typical aerospace and military aluminum alloy.
7075 Aluminum Sheet Plate Applications
Aerospace industry
Due to the excellent performance of 7075 alloy, high strength-to-weight ratio, excellent machinability, corrosion resistance, etc., 7075 aluminum sheet is often used in the aerospace field.
7075 aluminum is mainly used for the windward parts of the whole machine, such as the upper outer panel of the wing, the longitudinal beam, the wing rib, the empennage, the fixing of the fuselage bulkhead, etc.
Auto industry
7075 aluminum sheet also has important applications in automobile manufacturing. It can be used to manufacture high-performance racing components such as body frames, chassis structures and high-performance engine parts, helping to improve the car’s performance and fuel efficiency.
The high strength-to-weight ratio makes 7075 aluminum alloy play an important role in the lightweight of automobiles.
7075 aluminum sheet is used in the battery pack casing of Tesla electric vehicles to provide better impact and corrosion resistance
Marine application
7075 aluminum plate can also be used to manufacture marine engineering structures, such as ships, offshore platforms, etc.
Due to its corrosion resistance and high strength, it can ensure the safety and durability of marine engineering structural parts. For example, the structural parts of some oil platforms use 7075 aluminum plates.
In addition to the above fields, 7075 aluminum sheet can also be used in the manufacture of sports equipment, building materials, medical equipment, etc. For example, some high-end bicycle frames and medical equipment frames use 7075 aluminum plates to improve the strength and corrosion resistance of the products.
FAQ
Q: Are your aluminum foils suitable for food packaging?
A: Yes, our aluminum foils are specifically designed and tested for safe food packaging applications.
Q: Can I request customized dimensions for aluminum foil rolls?
A: Certainly, we offer the option for customized dimensions to meet your specific requirements.
Q: What is the typical shelf life of your aluminum foil products?
A: Our aluminum foil products have a stable shelf life when stored in recommended conditions. Specific details can be provided upon request.
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