What are the worlds most important metals?

Question

What are the worlds most important metals?

Answer 1

The first is iron . used everywhere. after copper, aluminum

Answer 2

What about sodium and potassium, they are essential in many important compounds.  Just because we don't often use them in their elemental state doesn't mean that they are not metals or not important.  

Answer 3

Iron, copper, platinum, aluminum, gold & silver.

Bronze, while well respected (there's a Bronze Age), is a copper alloy.

Answer 4

iron,silver,gold,steel,copper,bronze

Answer 5

Iron and copper.

Answer 6

copper,iron,aluminum,zinc,tin,lead