What is 7000 Series Aluminum
7000 series aluminum is known as super duralumin (the hardest aluminum alloy).
This superhard aluminum alloy is an alloy of aluminum, zinc, copper and magnesium. These alloys are the aluminum alloys with the highest room temperature strength, and after solid solution treatment and aging, their strength reaches 680MPa, and their specific strength is equivalent to that of super-strength steel. Therefore, 7000 series aluminum is often used as materials for extreme environmental work.
Types of 7000 Series Aluminum
7005 Aluminum
It is an aluminum extrusion material used for the manufacture of both high strength and high fracture toughness of the welded structure, such as transportation vehicle trusses, rods, containers; large heat exchangers, as well as welding can not be solid solution treatment of the components; can also be used for the manufacture of sports equipment, such as tennis rackets and baseball bats.
7049 Aluminum
Used for forging static strength and 7079-T6 alloy of the same and require a high resistance to stress corrosion cracking courage parts, such as aircraft and missile parts – landing gear hydraulic cylinders and extrusions. The fatigue properties of the parts are roughly equal to those of 7075-T6 alloy, while the toughness is slightly higher.
7050 Aluminum
7050 aluminum is used in medium and thick plates, extrusions, open forgings and drop-forged parts for aircraft structural components. The requirements of the alloy for the manufacture of these parts are: high resistance to spalling corrosion, stress corrosion cracking, fracture toughness and fatigue resistance.
7039 Aluminum
It has a strong resistance to temperature. It remains stable at both high and low temperatures. Therefore it is often used in refrigeration containers, low-temperature instruments and storage tanks, fire-fighting pressure equipment, military equipment, armor plates, missile devices.
Belows video shows aluminum extrusion for 7000 series aluminum
7475 Aluminum
It is used for both aluminum clad and unclad plates for aircraft body. It can be used as wing skeleton, truss and other materials. Because of its physical properties, it has high strength and high fracture toughness. Therefore, it can be the material of aerospace parts.
Summarize
Above is the introduction of 7000 series aluminum, which has the highest hardness and strength among aluminum alloys. Therefore, it can be used in aerospace, aviation and weaponry. In addition, the 7000 series aluminum also contains many excellent aluminum alloy materials used in high-precision industry. It is believed that in the future it can help mankind to reach Mars!
