Aug 9 2013
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Applications
Introduction
Magnesium alloys harden rapidly with any type of cold work, and hence they cannot be extensively cold formed without repeated annealing.
The following datasheet gives an overview of magnesium EA55B-T6 alloy.
Chemical Composition
The following table shows the chemical composition of magnesium EA55B-T6 alloy.
|
Element |
Content (%) |
|
Magnesium, Mg |
85 |
|
Aluminum, Al |
5 |
|
Zinc, Zn |
5 |
|
Neodymium, Nd |
4.9 |
Physical Properties
The physical properties of magnesium EA55B-T6 alloy are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
1.94 g/cm³ |
0.0701 lb/in³ |
Mechanical Properties
The mechanical properties of cast magnesium EA55B-T6 alloy are listed in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
271 MPa |
39300 psi |
|
Yield strength (@ strain 0.2%) |
167 MPa |
24200 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 |
0.32 |
0.32 |
|
Elongation at break (in 50 mm) |
8% |
8% |
Applications
Magnesium EA55B-T6 alloy is widely used for aerospace applications.