14C dating iron like that might be pretty chancy, though - if it was smelted with limestone or with coal/coke it would date old. I'll bet that metallurgical analysis would tell "modern" steel from ancient in a heartbeat - but True Believers would only say "see how advanced Noah's grandad was!!!"
I am unsure as to the exact accuracy of what I am conveying.
Coming from "Dr" Baugh, I'll bet that the accuracy is very, very low. Or absent. I would imagine that he was trying to raise money for his hyperbaric chamber at his "museum." The man is a fraud.