'Iron' in the Bible

And take a flat iron plate, and put it for a wall of iron between you and the town: and let your face be turned to it, and it will be shut in and you will make an attack on it. This will be a sign to the children of Israel.

Son of man, the children of Israel have become like the poorest sort of waste metal to me: they are all silver and brass and tin and iron and lead mixed with waste.

As they put silver and brass and iron and lead and tin together inside the oven, heating up the fire on it to make it soft; so will I get you together in my wrath and in my passion, and, heating the fire with my breath, will make you soft.

Tarshish did business with you because of the great amount of your wealth; they gave silver, iron, tin, and lead for your goods.

... for your goods: they gave polished iron and spices for your goods.