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7178 aluminum is a 7000-series aluminum alloy: the main alloying addition is zinc and it is formulated for primary forming into wrought products. 7178 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-7178. AlZn7MgCu is the EN chemical designation. And A97178 is the UNS number.
It has been in use since 1951, but has only received its standard designation in 1954.
It can have the highest tensile strength among the 7000-series alloys in the database.
The properties of 7178 aluminum include ten 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 7178 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.
7178-O Aluminum7178-T6 Aluminum
7178-T62 Aluminum7178-T651 Aluminum
7178-T6510 Aluminum7178-T6511 Aluminum
7178-T76 Aluminum7178-T7651 Aluminum
7178-T76510 Aluminum7178-T76511 Aluminum
2.[aluminium alloy 7178 /AlZn7MgCu/ A97178 ]
Application:
The chemical composition of Aluminium / Aluminum 7178 alloy is outlined in the following table.
Element | Content (%) |
---|---|
Aluminium / Aluminum, Al | 88.1 |
Zinc, Zn | 6.8 |
Magnesium, Mg | 2.7 |
Copper, Cu | 2.0 |
Chromium, Cr | 0.26 |
The following table shows the physical properties of Aluminium / Aluminum 7178 alloy.
Properties | Metric | Imperial |
---|---|---|
Density | 2.82 g/cm3 | 0.1018 lb/in3 |
Melting point | 482°C | 900°F |
The mechanical properties of Aluminium / Aluminum 7178 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 7178 alloy are given in the following table.
Properties | Conditions | |
---|---|---|
T (ºC) | Treatment | |
Thermal expansion | 23.4 (10-6/ºC) | 20-100 |