Jul 3 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Introduction
Magnesium is a silvery-white metal which is used as an alloying element with zinc, lead, aluminum, and other nonferrous alloys. Magnesium alloys have relatively low density, and are used when great strength is not necessary.
The following datasheet gives an overview of magnesium HM31A O alloy.
Chemical Composition
The following table shows the chemical composition of magnesium HM31A O alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
95.8 |
|
Thorium, Th |
3 |
|
Manganese, Mn |
1.2 |
Physical Properties
The physical properties of magnesium HM31A O alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
1.80 g/cm³ |
0.0650 lb/in³ |
Mechanical Properties
The mechanical properties of magnesium HM31A O alloy are listed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
283 MPa |
41000 psi |
|
Yield strength (@ strain 0.2%) |
230 MPa |
33400 psi |
|
Elongation at break (in 50 mm) |
10% |
10% |
Thermal Properties
The following table outlines the thermal properties of magnesium HM31A O alloy.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient |
26 µm/m°C |
14.4 µin/in°F |
|
Thermal conductivity |
104 W/mK |
722 BTU in/hr.ft².°F |