The main reasons that push towards the use of magnesium for structural components are, in addition to the highest ratio of weight-resistance between all the commonly used metals, also the excellent machinability and the good dimensional stability. The development of special alloys, and the use of some essential elements, have also enabled the improvement of the corrosion resistance, the achievement of very high mechanical properties and good resistance to high temperatures.
Magnesium has finally excellent vibrational absorption capacity, and for its low inertia is a good choice for those mechanical parts subject to frequent and sudden changes in the direction of motion at high speed.
State |
Elongation |
Yield strenght (Mpa) |
Tensile strenght (Mpa) |
|
F |
2
3 |
95
105 |
160
190 |
Typical
Min |
T4 |
6
9 |
110
125 |
240
260 |
Typical
Min |
T6 |
2
4.5 |
150
170 |
240
270 |
Typical
Min |
T4 = 16 / 24 hours at 400 / 420 °C, air cooling. T6 = 16/ 24 hours at 400 / 420° C, air cooling, then 8 /16 hours at 180 / 210 °C.
F= Raw casting - T4= Casting after T4 heat treatment - T6= Casting after T6 heat treatment
Gallery
