Well I thought this was an open discussion of case hardening. I thought in fact I "Asked" more questions than made Statements. One or two did provide some answers, which certainly sounded reasonable.
I am not trying to "Throw Water" on anyones endeavor. I do think anyone who wants to attempt case hardening though needs to fully understand it is not as casual a feat as for instance Rust Bluing & should definitely be interested in learning all they can about the process.
I suppose if someone asks a question, to which you have no idea as to the answer, just "Attack" the questioner is a viable tactic. Well for my part you just totally lost all my respect. As this thread started I was actually thinking you were a good source of some things I wanted to further learn on the subject. Missed That One BIG time.
PS; I have seen a case hardened part so full of cracks one had absolutely no need for a microscope, or even a magnifier for that matter to see them. It was a non gun related part & newly made, not an irreplacable antique.
PPS; Yes I am quite familar with Magna-Fluxing. This part didn't need it though to show up the cracks.
An old Mule trader once took some Black Polish & shined up an old decreptid mule. He then sold it to an unsuspecting Green Horn. Next day Green horn comes around & tells him, You know that mule you sold me Yesterday, He died last night. Old Mule trader says "Well, He Ain't Never did Nuten like Dat Afore.
