Iron and steel

1. Job 20: 24
   24 He shall flee from the iron weapon, and the bow of steel shall strike him through.
2. Jer. 15: 12
   12 Shall iron break the northern iron and the steel?
3. 2 Ne. 5: 15
   15 And I did teach my people to build buildings, and to work in all manner of wood, and of iron, and of copper, and of brass, and of steel, and of gold, and of silver, and of precious ores, which were in great abundance.
4. Jarom 1: 8
   8 And we multiplied exceedingly, and spread upon the face of the land, and became exceedingly rich in gold, and in silver, and in precious things, and in fine workmanship of wood, in buildings, and in machinery, and also in iron and copper, and brass and steel, making all manner of tools of every kind to till the ground, and weapons of war—yea, the sharp pointed arrow, and the quiver, and the dart, and the javelin, and all preparations for war.