How to sign: a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
Similiar / Same: iron
Categories: metal, metallic element
Within this category: alpha iron, beta iron, cast iron, delta iron, galvanized iron, gamma iron, ingot iron, pig iron, scrap iron, structural iron, wrought iron