Aluminum 7004 Alloy (UNS A97004)

Topics Covered

Chemical Composition
Physical Properties


Aluminium / aluminum 7000 series is considered as the highest strength series of aluminum alloys developed primarily for aircraft applications. It is vital to the aerospace industry because of its corrosion-resisting qualities, comparative ease of fabrication, and high strength/weight ratio. Zinc is the primary alloy of this series.

Aluminium / aluminum 7004 alloy is a wrought alloy. The following datasheet will provide more details about aluminium / aluminum 7004 alloy.

Chemical Composition

The following table shows the chemical composition of aluminium / aluminum 7004 alloy.

Element Content (%)
Aluminum, Al 91.6 - 94.9
Zinc, Zn 3.8 - 4.6
Magnesium, Mg 1- 2
Iron, Fe ≤ 0.35
Silicon, Si ≤ 0.25
Manganese, Mn 0.20 - 0.70
Zirconium, Zr 0.10 - 0.20
Copper, Cu ≤ 0.050
Titanium, Ti ≤ 0.050
Chromium, Cr ≤ 0.050
Other (each) ≤ 0.050
Other (total) ≤ 0.15

Physical Properties

The physical properties of aluminium / aluminum 7004 alloy are outlined in the following table.

Properties Metric Imperial
Density 2.77 g/cm³ 0.100 lb/in³

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