I don't know that much about metals, but does iron really only made of iron? For example, water doesn't only made of water, it includes many others like oxygen etc., and afaik water in pure form (as in only made of water) is no way superior than regular water, in fact it's rather dangerous to be consumed as it takes whatever it need from the body to be regular water (it doesn't want to stay pure). So is pure iron (strictly only made of iron) superior than regular iron (includes carbon etc.)?
Can someone knowledgeable please answer this? I'm curious in this particular topic. And also please correct me if I'm wrong anywhere.