Types of Metals

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Types of metals:
Metals are often divided into two main groups: ferrous metals are those which contain iron and non-ferrous metals that are those which contain no iron.

Ferrous Metals:

 Ferrous Metals

Pure Iron is of little use as an engineering material because it's too soft and ductile. When iron cools and changes from a liquid to a solid, most of the atoms within the metal pack, tightly together in orderly layers. Some, however, Become misaligned, creating areas of weaknesses called dislocations. When a bit of iron is anesthetize stress, layers of atoms in these areas slip over each other and therefore the metal deforms. This begins to elucidate the ductility of sentimental iron. By adding carbon to the iron however, we will produce a variety of alloys with quite different properties. We call these the carbon steels. An alloy may be a mixture of two or more chemical elements and therefore the primary element may be a metal.

Non-Ferrous metals:

 Non-Ferrous Metals

They are metals that don't contain iron. They have tons of uses but they're often expensive because they're harder to extract.


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