Jun 17 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
In the recent years, magnesium alloys are being used widely due to their low density, excellent damping capacity, good machinability, and high specific strength. They are the lightest commercial structural alloys in the market.
Magnesium alloys are normally used as cast alloys. The following sections will discuss in detail about magnesium AZ63A-T6 cast alloy.
Chemical Composition
The chemical composition of magnesium AZ63A-T6 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Magnesium, Mg |
90.7 |
|
Aluminum, Al |
6 |
|
Silicon, Si |
0.3 |
Physical Properties
The physical properties of magnesium AZ63A-T6 alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
1.83 g/cm3 |
0.0661 lb/in3 |
Mechanical Properties
The following table shows mechanical properties of magnesium AZ63A-T6 alloy.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
200 MPa |
29000 psi |
|
Yield strength |
97 MPa |
14100 ksi |
|
Elongation at break |
6% |
6% |
|
Hardness, Brinell |
50 |
50 |
Thermal Properties
The thermal properties of magnesium AZ63A-T6 alloy are tabulated below.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@20-100°C/68-212°F) |
26.1 µm/m°C |
14.5 µin/in°F |
|
Thermal conductivity |
77 W/mK |
534 BTU in/hr.ft².°F |