Magnesium has three principal uses:
- The principal constituent in magnesium alloys used chiefly in the production of die-cast parts, mainly for the automobile industry.
- A minor constituent of aluminium alloys used in practically all of the applications for aluminium.
- Desulphurising agent in the production of steel.
In addition, magnesium has a range of metallurgical, chemical and electrochemical uses, all of which are relatively minor.
Magnesium’s uses can be classified in order of importance as follows:
- Casting magnesium alloys.
- Aluminium alloys.
- Desulphurisation of steel.
- Production of titanium sponge.
- Nodularisation of ductile cast iron.
- Cathodic protection.
- Wrought magnesium alloys.
- Other minor uses.