Nickel is silvery white and takes on a high polish. It is hard, malleable, ductile, somewhat ferromagnetic, and a fair conductor of heat and electricity. It belongs to the iron-cobalt group of metals and is chiefly valuable for the alloys it forms.
Melting point: 1455 °C Boiling point: 2913 °C
A sheet is a flat material with a thickness larger than foils.