'Bronze' in the Bible

For, behold, I have made you this day a fortified city, and an iron pillar, and bronze walls, against the whole land, against the kings of Judah, against its princes, against its priests, and against the people of the land.

I will make you to this people a fortified bronze wall; and they shall fight against you, but they shall not prevail against you; for I am with you to save you and to deliver you, says Yahweh.

The pillars of brass that were in the house of Yahweh, and the bases and the bronze sea that were in the house of Yahweh, did the Chaldeans break in pieces, and carried all the brass of them to Babylon.

The two pillars, the one sea, and the twelve bronze bulls that were under the bases, which king Solomon had made for the house of Yahweh. The brass of all these vessels was without weight.