Does anyone have experience with the 420 ear stainless steel (it is remelted 420 for making molds)? I was given a good amount of this and was wondering if it is possible to forge properly (for knives and other tools). I was working with a small piece about 2" thick and 6" long and it is very tough to forge. It eventually ended up cracking. If anyone has any advice or procedures , it would be greatly appreciated.