Complaint
7475 aluminum is a 7000-series aluminum alloy: the main alloying addition is zinc and it is formulated for primary forming into wrought products. 7475 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-7475. Additionally, the EN chemical designation is AlZn5,5MgCu(A). And the UNS number is A97475.
It originally received its standard designation in 1969.
The properties of 7475 aluminum include six common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 7475 aluminum to: 7000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
7475-T6 Aluminum7475-T61 Aluminum
7475-T651 Aluminum7475-T7351 Aluminum
7475-T76 Aluminum7475-T7651 Aluminum
Aluminium / Aluminum alloys have high electrical conductivity and strong corrosion resistance characteristics. These alloys are good low-temperature alloys. They gain strength when exposed to subzero temperatures and lose strength when exposed to high temperatures. Aluminum alloys are sensitive to high temperatures ranging between 200 and 250°C (392 and 482°F).
The following datasheet provides an overview of Aluminium / Aluminum 7475 alloy.
Application:
The chemical composition of Aluminium / Aluminum 7475 alloy is outlined in the following table.
| Element | Content (%) |
|---|---|
| Aluminum, Al | 90.3 |
| Zinc, Zn | 5.7 |
| Magnesium, Mg | 2.3 |
| Silicon, Si | 1.50 |
| Chromium, Cr | 0.22 |
The following table shows the physical properties of Aluminium / Aluminum 7475 alloy.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 2.6-2.8 g/cm3 | 0.0939-0.1011 lb/in3 |
| Melting point | 546°C | 1015°F |
The mechanical properties of Aluminium / Aluminum 7475 alloy are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Elastic modulus | 70-80 GPa | 10152-11603 ksi |
| Poisson's ratio | 0.33 | 0.33 |
The thermal properties of Aluminium / Aluminum 7475 alloy are given in the following table.
| Properties | Conditions | ||
|---|---|---|---|
| T (ºC) | Treatment | ||
| Thermal conductivity | 177 (W/m-K) | 25 | O |
Conventional methods are used to readily cold work Aluminium / Aluminum 7475 alloy in the annealed condition.
Aluminium / Aluminum 7475 alloy is not usually welded.
Aluminium / Aluminum 7475 alloy can be formed using conventional methods. This alloy can be easily formed in the annealed condition than in the heat treated condition in which the alloy has more spring back because of its strength.
Aluminium / Aluminum 7475 alloy has good machining characteristics in the annealed condition. Oil base lubricants can be used during the machining operations of this alloy.
Aluminium / Aluminum 7475 alloy can be heat treated.
