what are Non - Ferrous Metals ? Why It is Used?

Non - Ferrous metals are those which do not contain Iron as base. Their melting points are generally lower than that of ferrous metals. Non ferrous metals suffers generally from hot - shortness, poses low strength at high temperature, and their shrinkage is generally more than that of ferrous metals. Non ferrous metals are used for the following reasons :

1. Resistance to corrosion

2. Special electrical and magnetic properties

3. Softness and facility of cold working.

4. Fusibility and ease of casting.

5. Good formability.

6. low density.

7. Attractive Colour.

The principal non ferrous metals used in engineering purposes are :

Aluminum, Copper, lead, tin , zinc , nickel , etc. and their alloys.

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Mechinopedia For Mechanical Engineers

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