The most suitable metal to use to make a permanent magnet is C-iron.
Why is iron the most suitable metal to use to make a permanent magnet?
Ferromagnetic materials: Permanent magnets require ferromagnetic materials, meaning they can easily be magnetized and retain that magnetism for a long time.
Aluminum and Brass: Neither aluminum nor brass are ferromagnetic. They are non-magnetic and wouldn't be able to become or remain magnetized, making them unsuitable for permanent magnets.
Iron and Steel: Both iron and steel are ferromagnetic metals. However, steel is generally a better choice due to its:
Therefore, while both iron and steel can be used for permanent magnets, steel offers several advantages and is more commonly used in practice.