2 Bible Verses about Steel

And they had breastplates as breastplates of iron; and the sound of their wings was as the sound of chariots of many horses rushing to war.

their merchandise of gold, and of silver, and of precious stones, and of pearls, and of fine linen; and of purple, and of silk, and of scarlet, and all thyine wood, and every vessel of ivory, and every vessel of most valuable wood, and of brass, and of iron, and of marble;