Jul 3 2013
Topics Covered
Introduction
Physical Properties
Mechanical Properties
Thermal Properties
Fabrication
Applications
Introduction
Aluminium /aluminum alloys are good low-temperature alloys with strong corrosion resistance characteristics and high electrical conductivity. Both aluminium /aluminum and its alloys are in great demand as they are easy to acquire, fabricate and maintain.
The following datasheet provides an overview of aluminium / aluminum 7175 alloy.
Chemical Composition
The chemical composition of aluminium / aluminum 7175 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Aluminum, Al |
90.0 |
|
Zinc, Zn |
5.6 |
|
Magnesium, Mg |
2.5 |
|
Copper, Cu |
1.6 |
|
Chromium, Cr |
0.23 |
Physical Properties
The following table shows the physical properties of aluminium / aluminum 7175 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
2.6-2.8 g/cm³ |
0.0939-0.1011 lb/in³ |
|
Melting point |
482°C |
900°F |
Mechanical Properties
The mechanical properties of aluminium / aluminum 7175 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 |
Thermal Properties
The thermal properties of aluminium / aluminum 7175 alloy are given in the following table.
|
Properties |
Conditions |
|
T (°C) |
Treatment |
|
Thermal conductivity |
177 (W/mK) |
25 |
O |
Fabrication
Machinability – of aluminium / aluminum 7175 alloy is easily possible. This alloy can be heat treated. It can also be hardened by cold working or heat treatment.
Cold and hot working - Conventional methods can be used for cold working aluminium / aluminum 7175 alloy allowing generous bend radii as with aluminium / aluminum 7075 alloy. Hot working is possible as well.
Forging and forming - Aluminium / aluminum 7175 alloy can be forged, and can also be formed by hand or die forging as it is a forging alloy.
Aging - Aluminium / aluminum 7175 alloy is an age-hardenable alloy.
Applications
Aluminium / aluminum 7175 alloy can be used in machined fittings of the aircraft industry.