Aluminum Plate 7075

 

Composition and Properties

Aluminum plate 7075 primarily contains zinc as its main alloy element. Adding 3% to 7.5% magnesium to the zinc alloy forms MgZn2, which significantly enhances its strength. This makes the alloy’s heat treatment effect superior to that of aluminum-zinc binary alloys. Increasing zinc and magnesium content further boosts tensile strength, though it reduces resistance to stress corrosion and spalling corrosion. When heat-treated, 7075 achieves very high strength. Small amounts of copper and chromium are also added. The A7075 variant, considered a top-grade aluminum alloy, offers much higher strength than mild steel and exhibits excellent mechanical properties and anodic reaction.

Main Uses

Aluminum plate 7075 is used where strength, weldability, and corrosion resistance are crucial. Key applications include:

  • Aviation Fixtures: Used in aircraft parts, gears, shafts, and fuselage components.
  • Transportation: Ideal for truck and tower building.
  • Marine: Suitable for vessels and pipelines.
  • Defense and Aerospace: Utilized in missile parts, turbines, keys, and various defense applications.
  • Other Applications: Used in instruments, valve shafts, and other high-strength requirements.

Typical Mechanical Properties

(250℃MPa)

(250℃MPa)

500kg/N

10mm ball

1.6mm(1/16in)

ALLOYAND TEMPER

Ultimate Tensile
Strength

Ultimate Tensile
Strength

Hardness

Elongation

7075

572

503

150

11

Teda Ganghua Metal -17 years
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