Magnesium, being a light and highly reactive metal, is used in a wide range of industries including aerospace, automotive, and electronics.
The melting point of magnesium is 650°C (1202°F). This temperature is relatively low compared to other metals and alloys, which makes magnesium an attractive material for certain high-temperature applications where a combination of lightweight and high thermal resistance is desired.
The low melting point of magnesium is a result of its hexagonal close-packed (HCP) crystal structure, which is relatively weak compared to other crystal structures such as face-centered cubic (FCC) or body-centered cubic (BCC).
This weak structure makes magnesium susceptible to melting at relatively low temperatures, but it also gives it high ductility, making it a useful material for forming and shaping.
The melting point of magnesium also has an impact on its machinability and its ability to be cast into various shapes and forms. Magnesium is typically cast using the die-casting method, which involves melting the metal and then forcing it into a mold under high pressure.
The low melting point of magnesium allows for the use of relatively simple casting equipment and processes, making it an economical choice for many industries.