Question

which alloy steel is used to make permanent magnets?​

Answer 1

Answer:

Alnico is a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni) and cobalt (Co), hence acronym al-ni-co. They also include copper, and sometimes titanium. Alnico alloys are ferromagnetic, and are used to make permanent magnets

Answer 2

Answer:

Alnico.

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