The uses of iron include garden tools, wrenches and screws, nails and drill bits, weapons of war and furniture. Iron is also used to make pots and pans as well the infrastructure of buildings and bridges.
Iron is prized because it is abundant, inexpensive and easily made into many alloys that are stronger, harder and more durable than the original metal. Iron itself is easy to weld. It can be drawn into wires, hammered into thin sheets, cast, forged and machined. For many animals, iron is also necessary for good health. Iron atoms in hemoglobin are used to transport oxygen in the blood.