Copper is malleable and ductile, a good conductor of heat and, when very pure, a good conductor of electricity.

Copper is malleable and ductile, a good conductor of heat and, when very pure, a good conductor of electricity.

The purity of copper is expressed as 4N for 99.99% pure or 7N for 99.99999% pure. The numeral gives the number of nines after the decimal point when expressed as a decimal (e.g. 4N means 0.9999, or 99.99%). Copper is often too soft for its applications, so it is incorporated in numerous alloys. For example, brass is a copper-zinc alloy , and bronze is a copper-tin alloy.[27]

It is used extensively, in products such as:

Piping

    * including water supply.

Electronics

    * Copper wire.
    * Electromagnets.
    * Printed circuit boards.



--
Divyang A. Pandya