Apr 25 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Aluminum alloys tend to lose their strength when they are exposed to temperatures of about 200-250°C. However, their strength increases at subzero temperatures. They have high corrosion resistance.
The following datasheet will discuss in detail about the aluminum 6351 alloy.
Chemical Composition
The chemical composition of the aluminum 6351 alloy is tabulated below.
|
Element |
Content (%) |
|
Aluminum, Al |
97.8 |
|
Silicon, Si |
1 |
|
Manganese, Mn |
0.6 |
|
Magnesium, Mg |
0.6 |
Physical Properties
The following table shows the physical properties of the aluminum 6351 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
2.6-2.8 g/cc |
0.0939- 0.101 lb/in3 |
Mechanical Properties
The mechanical properties of the aluminum 6351 alloy are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
250 MPa |
36260 psi |
|
Yield strength |
150 MPa |
21756 psi |
|
Shear strength |
200 MPa |
29008 psi |
|
Fatigue strength |
90 MPa |
13054 psi |
|
Elastic modulus |
70-80 GPa |
10153-11603 ksi |
|
Poisson's ratio |
0.033 |
0.033 |
|
Elongation |
20% |
20% |
|
Hardness |
95 |
95 |
Thermal Properties
The thermal properties of the aluminum 6351 alloy are given in the following table.
|
Properties |
Conditions |
|
T (ºC) |
Treatment |
|
Thermal conductivity |
176 W/m-K |
25 |
T6 |
Other Designations
Other designations equivalent to the aluminum 6351 alloy include ASTM B221.
Applications
The aluminum 6351 alloy is used in manufacturing tubes and pipes.