Home › C › Copper (Metal of a reddish color)

Copper (Metal of a reddish color)

A metal of a reddish color, malleable, ductile and tenacious. It fuses at 2,000 deg. Fah. and has a specific gravity varying from 8.8 to 8.9. It has a breaking strain of 48,000 lbs. per square inch. In horology it is employed as a backing for enameled watch dials; in the construction of gridiron compensation pendulums; in the manufacture of compensation balances, etc. When mixed with tin it forms bell-metal and bronze and with zinc it forms brass and other alloys. See Alloys.