7075 aluminum sheet plate

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7075 aluminum sheet is the strongest heat-treatable alloy, introduced by Alcoa in 1943, and can be heat-treated to achieve strength levels comparable to many steel alloys.

7075 aluminum sheet plate

  • Alloy:  7075
  • Width: 500-2600 mm
  • Length: 500-12000mm
  • Thickness: 0.5mm-300mm
  • Temper: O, T6, T651, T7351, T7451 etc.
  • Certification: GB/T19001-2016/ISO9001:2015

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Introduction Of 7075 Aluminum Sheet Plate

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 Sheet Plate

7075 Aluminum Sheet Plate

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

Chemical Composition Limits

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

Data Sources:https://www.alufoil.cn/7075-aluminum-sheet.html
7075 Aluminum, an aluminum alloy with zinc as the primary alloying element,it is one of the strongest commercially available alloys, with a strength comparable to many steels.

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 is a typical aircraft grade aluminum
  • 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.

7075 Aluminum Sheet For Car

7075 Aluminum Sheet For Car

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.

7075 Aluminum Sheet Plate For Ship

7075 Aluminum Sheet Plate For Ship

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.

Why choose huawei 7075 aluminum sheet plate

  • After stress relief, the 7075 aluminum sheet will not deform or warp. To ensure quality, all 7075 aluminum sheets are ultrasonically tested to prevent the presence of sand holes and impurities.
  • The 7075 aluminum sheet has a high thermal conductivity, which can shorten the forming time and improve work efficiency.
  • 7075 aluminum sheet has excellent physical properties, processability and corrosion resistance. Its strength can be increased by age hardening treatment.
  • Even in the naturally aged state, the 7xxx alloys achieve high strength and are less susceptible to cracking.
  • Through solid solution strengthening treatment, the strength of the welded part can be restored, thereby improving the strength of the weld.
  • Relying on mature processing technology, we provide customers with the most competitive price of 7075 aluminum sheet.

6061 aluminum sheet VS 7075 aluminum sheet

Two of the most popular aluminum sheets for structural applications are 6061 and 7075 aluminum sheets, but they have many differences.

Chemical composition

6061 aluminum has a higher silicon content, while 7075 alloy has a higher zinc content. 7075 has a slightly higher magnesium content and more copper.

6061 Aluminum Sheet

6061 Aluminum Sheet

Mechanical properties

Both 6061 aluminum sheet and 7075 aluminum sheets can be heat treated. The tensile strength of 7075-T6 is almost twice that of 6061-T6. The shear strength of 7075-T6 is about 1.5 times that of 6061-T6.

Weldability

6061 is solderable, while 7075 is generally considered non-solderable. For 6061 aluminum, heat treatment and aging treatment are required after welding to restore the welded area to its original T state. 7075 is easy to crack after welding.

Use

They have many fields of application, but the parts of application are not the same. For example, in the aerospace industry, 7075 is more likely to be used for gears or rods, while 6061 is more likely to be used in more malleable areas.

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