Low grade iron scrap goes to Nucor Steel. Nucor started in steel making rebar from scrap. Then they figured out how to continuous-cast better steel from scrap. Now they're the biggest steelmaker in the US. If it's steel or iron and you can get it to a scrapyard, it's going to be recycled. If it was a car, it's going to be recycled. If the magnets at the recycling center can pull it out of trash, it's headed for a steel mill.