Aug 13 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Applications
Introduction
Magnesium AM20-F alloy is known for its high ductility and impact strength.
This data sheet will elaborate on the properties and applications of magnesium AM20-F alloy.
Chemical Composition
The following table shows the chemical composition of magnesium AM20-F alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
97.8 |
|
Aluminum, Al |
2.1 |
|
Manganese, Mn |
≥0.10 |
Physical Properties
The physical properties of magnesium AM20-F alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
1.78 g/cc |
0.0643 lb/in³ |
Mechanical Properties
The mechanical properties of magnesium AM20-F alloy are provided in the table below.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
214 MPa |
31000 psi |
|
Yield strength |
89.6 MPa |
13000 psi |
|
Compressive yield strength |
89.6 MPa |
13000 psi |
|
Shear modulus (estimated from similar Mg alloys) |
17 GPa |
2470 ksi |
|
Elastic modulus (typical Mg alloy value in tension) |
45 GPa |
6530 ksi |
|
Poisson's ratio (estimated from similar Mg alloys) |
0.35 |
0.35 |
|
Elongation at break (in 50 mm) |
20% |
20% |
|
Hardness, Brinell (500 kg load, 10 mm ball) |
45 |
45 |
Thermal Properties
The following table outlines the thermal properties of magnesium AM20-F alloy.
|
Properties |
Metric |
Imperial |
|
Thermal expansion co-efficient (@ 0.000-100°C/32-212°F) |
26 µm/m°C |
14.4 µin/in°F |
Applications
Magnesium AM20-F alloy is typically used in making die castings due to its high strength and ductility.