Iron is a chemical element with symbol Fe and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.
I 3027 (OTTO) Iron foil, 0.1 mm thick, 99.99% Cas 7439-89-6 - used as a substrate for growing graphene by chemical vapor deposition (CVD).