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Aluminum Forging 7075 T73

Introduction of Aluminum Forging 7075 T73
Aluminum Forging 7075 T73 is an ultra-high-strength aluminum alloy that was first used in the aviation industry and is still widely used. This type of alloy belongs to the Al-Zn-Mg-Cu series of heat-treatable alloys. Zinc is the main alloy element. Because the zinc element has a higher solid solubility in the aluminum alloy, the aluminum alloy can be better after solution aging. High strength. The commonly used heat treatment states of 7075 aluminum alloy are T6, T73, T76 and T74. Compared with the T6 process, T73 is an over-aging heat treatment process, which can make the aged alloy have higher fracture toughness and excellent stress corrosion resistance. And resistance to spalling corrosion, can meet the requirements of aviation manufacturing.

Chemical composition of Aluminum Forging 7075 T73
Si: 0.40
Fe: 0.50
Cu: 1.2-2.0
Mn: 0.30
Mg: 2.1-2.9
Cr: 0.18-0.28
Zn: 5.1-6.1
Ti: 0.20
Al: balance
Others: Single: 0.05 Total: 0.15
Application of Aluminum Forging 7075 T73:
Aluminum Forging 7075 T73 are widely used to manufacture parts that require high strength and corrosion resistance, such as important load-bearing parts (wing spars, bulkheads, long lock nuts, high lock nuts) in aircraft structures.

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