'Metal' in the Bible

And he had a head-dress of brass on his head, and he was dressed in a coat of metal, the weight of which was five thousand shekels of brass.

Then Saul gave David his clothing of war, and put a head-dress of brass on his head and had him clothed with a coat of metal.

And David took Saul's sword and put the band round him over the metal coat, and was unable to go forward; for he was not used to them. Then David said to Saul, It is not possible for me to go out with these, for I am not used to them. So David took them off.

And David took the head of the Philistine to Jerusalem, but the metal war-dress and the arms he put in his tent.