Magnesium Alloys tend to be employed in quite low volume applications where they are treated by sand or investment casting. These are used in automotive as well as numerous other high volume applications. These alloys are combinations of magnesium with other metals as well. These lightest structural metals come with hexagonal lattice structure, which touches the essential properties of these amalgams. Magnesium Alloys are the ideal materials for use in numerous applications, due to inadequate continuing developments on aluminum weight reduction.