Gunplummer
New member
8620 is not like 4140. You have to add carbon to the outside to case it. Mauser receivers (With one or two exceptions) are junk steel somewhere around 1018-1026. The whole thing is carborized and cased. If it is harder, it was recarborized at that spot. You can do the same "Spot hardening" by repeating with Kasenite.
If you take a Mauser or Mosin receiver and grind about .015 -.020 off at a spot, it will never get hard again at that spot with out adding carbon. You can heat it to any temperature you want, quench it in any media you want, and it will not get hard.
I would like to know what the MAS 49/56 receivers are made from. Anybody know?
If you take a Mauser or Mosin receiver and grind about .015 -.020 off at a spot, it will never get hard again at that spot with out adding carbon. You can heat it to any temperature you want, quench it in any media you want, and it will not get hard.
I would like to know what the MAS 49/56 receivers are made from. Anybody know?