04-18-2012, 03:13 PM
You could just have the smith cut your pipe to 20", re-crown, and drive-on. I wonder if Meloniting would be any kind of insurance against inclusions, since there would be a layer of nitrogen bonded to the surface. If impurities in the substrate steel are bad enough though, I don't know how much I would want to ride on the loss of ductility and possible fizzures.
