Ferrous metals and alloys are widely used because of the development of a technology that has produced thousands of different alloys and grades that provide a wide range of properties not found in any other family of materials. Further, they are economical on a basis of cost per unit of length.
The Latin word of iron is ferrum. So metals which contain iron are classified as ferrous metals. The principle ferrous metals used in engineering are classified under the following groups :
1. Pig Iron
2. Cast Iron.
3. Wrought Iron.
4. Carbon Steel.
5. Alloy Steel.
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