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As I mentioned in another comment, ironworking requires taking things to the next level in a pretty serious way if you want to cast it. Iron melts at 2800 degrees, you need ceramic crucibles, it is heavy, and so on. I'm not going to even consider iron until I have a lot more experience working with aluminum.

That said, I do have some friends who are experts at working iron, so if I do decide to take it up, I'll have a lot of good advisors.

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