But no mention of keratin nails! What a woefully incomplete reference :)
Still unclear what is meant by "iron". I mean, low carbon steel is iron with some trace impurities. Cast iron? Nails aren't cast, besides it's brittle and less prone to rust than low carbon steel.
Re:Will Coke Dissolve a Nail? (2003)
by hiddenkrypt on Wednesday September 21, 2016 @10:53AM
(#12548678)
Usually wrought iron, not cast iron. I have a blacksmith friend who made a large amount of iron nails when he was starting the trade, since it was good practice. He still makes them in demonstrations at Ren Faires. They're still used occasionally for horseshoes apparently, though that market from what I know has been using more and more mass-produced steel instead.
Source: http://www.madehow.com/Volume-2/Nail.html