Apr 25 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Aluminium / aluminum is a silverish white metal. It is the third most abundantly available element. Aluminium / aluminum can be combined with one of these elements – silicon, magnesium, manganese, copper, and zinc, to form aluminium / aluminum alloys.
It is possible to use aluminium / aluminum alloys to create stiffer and lighter designs than traditional uses of steels. Aluminium / aluminum 6020 alloy is a wrought alloy type with excellent corrosion resistance. It is an unleaded variety. Aluminium / aluminum 6020 alloy is known for its high corrosion resistance, excellent machinability, good joining characteristics, and very good response to anodizing.
The following datasheet will provide more details about the aluminium / aluminum 6020 alloy.
Chemical Composition
The following table shows the chemical composition of the aluminium / aluminum 6020 –T8 alloy.
|
Element |
Content (%) |
|
Aluminum, Al |
93.9-97.8 |
|
Tin, Sn |
0.90-1.5 |
|
Magnesium, Mg |
0.60-1.2 |
|
Silicon, Si |
0.40-0.90 |
|
Copper, Cu |
0.30-0.90 |
|
Iron, Fe |
≤ 0.50 |
|
Manganese, Mn |
≤ 0.35 |
|
Zinc, Zn |
≤ 0.20 |
|
Chromium, Cr |
≤ 0.15 |
|
Titanium, Ti |
≤ 0.15 |
|
Lead, Pb |
≤ 0.050 |
|
Remainder (each) |
≤ 0.050 |
|
Remainder (total) |
≤ 0.15 |
Physical Properties
The physical properties of aluminium / aluminum 6020 alloy are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
2.71 g/cm3 |
0.0979 lb/in³ |
Mechanical Properties
The mechanical properties of the aluminium / aluminum 6020-T8 alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
≥ 303 MPa |
≥ 43900 psi |
|
Yield strength |
≥ 283 MPa |
≥ 41000 psi |
|
Elongation at break |
10% |
10% |
|
Hardness, Brinell |
100 |
100 |
|
Hardness, Knoop (estimated from Brinell) |
126 |
126 |
|
Hardness, Rockwell A (estimated from Brinell) |
41 |
41 |
|
Hardness, Rockwell B (estimated from Brinell) |
63 |
63 |
|
Hardness, Vickers (estimated from Brinell) |
112 |
112 |
|
Machinability |
90 |
90 |
Thermal Properties
The thermal properties of the aluminium / aluminum 6020 alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient |
23.8 µm/m°C |
13.2 µin/in°F |
Applications
The following are potential applications of aluminium / aluminum 6020 alloy:
-
Hinge pins
-
Brake pistons
-
Camera parts
-
Automotive transmission valves
-
CATV connectors
-
Tripod fittings
-
Air-conditioning compressor pistons
Aluminium / aluminum 6020 alloy is also used in areas where leaded products pose an environmental concern.