About a month ago one of my double pie irons lost the pin on the hinge. Not wanting to throw it away, I remembered
@cruiseroutfit telling me he had welded a new pin onto one of his cast iron pie irons.
After grinding and cleaning the area for the new pin, I pre-heated it with a propane torch before welding a new steel rod in for the hinge.
I have no idea how to tell if I got good penetration, and the welds are ugly, but fixed is fixed. If it breaks again I'm out a few minutes of time. If it holds, I get to keep using a well seasoned pie iron.