Using Scrap Iron in Blacksmithing, General Discussion Posted August 5, 2014 when u say scrap iron do you really mean "IRON". Or do you mean scrap modern day steel? I think we assume the latter. Tho in the end I think the answer is the same. YES. But. Are we talking Plate, Rod, squares, etc... A "lot of scrap" is not real clear. Once again tho the answer is probably YES but knowing what you have is a bit more helpful. Especially since you have not started yet. If you have a bunch of plate steel that is different than having a bunch of 1/2" or 1/4" rod for example.... As for it being something lying about and all rusty... I don't see a problem. The forging process will burn away and or hammer/scrape away most of the rust/scale. And give you good practice making something useful from something that looks like scrap/trash to most folks. Got a pic?