7A04 Aluminum PlateAl-Zn-Mg-Cu ultra-high strength aluminum alloy, also known as super-hard aluminum, is a relatively mature and widely used alloy in the super-hard aluminum category. The 7A04 aluminum plate boasts high strength, excellent heat treatment strengthening effects, and moderate plasticity in both annealed and newly quenched conditions. Unlike other super-hard aluminum alloys, it exhibits better corrosion resistance in artificial aging than in natural aging, with a slower aging process. The peak aging hardening is reached only after 3 months, so the 7A04 aluminum plate is used in quenched and artificially aged condition.7A04 Aluminum PlateThe drawbacks include low organizational stability, low frequency fatigue strength, and a tendency towards stress corrosion cracking. The alloy has good spot welding characteristics, poor gas welding properties, good machinability after heat treatment, but poor machinability after annealing.

Usage:

7A04 Aluminum PlatePrimarily used for manufacturing aircraft structures and high-stress components requiring high strength and corrosion resistance, such as upper and lower wing surface panels, trusses, etc. After solution heat treatment, it exhibits good plasticity and excellent heat treatment strengthening. It maintains good strength below 150 degrees Celsius and exceptional low-temperature strength. It has poor welding properties and a tendency for stress corrosion cracking. It is also widely used in mold making, machinery and equipment, fixtures, aerospace and aviation industries, blow molding (bottle) molds, ultrasonic welding molds, golf ball heads, shoe molds, paper-plastic molds, foam molding molds, paraffin molds, machinery and equipment, and for producing high-end aluminum alloy bicycle frames. In 2014, it was first used as the body material for the smartphone OPPO N3.

   7A04 Aluminum Plate Chemical Composition

    7A04 Aluminum Plate Product Parameters