Nitride treated bolts and barrel extensions.

[constructor]

Doesn't it depend on whether the extension and barrel are treated as a unit vs treated separately, then assembled/torqued?

Sure if there is no extension on the barrel there is no extension to come loose. If it is installed after treatment then the treatment doesn't effect it.

[markderp]

Is there any new information and processes for nitriding barrel extensions now in 2023? There are several high end manufacturers that use nitride barrel extensions. Are they just modifying the process/temp to ensure a proper rockwell or would the nitride still lower hardness to a measureable degree

[MegademiC]

I have a vickers hardness tester now.

I can also section parts for internal micro-hardness.

[markderp]

Have you tested any nitride parts with it yet? Bolts or BE's

[MegademiC]

Have you tested any nitride parts with it yet? Bolts or BE's

When I say "I" i mean the company I work for and have access to. Only low carbon steels at this point

[markderp]

Got it. I'd offer up a part for testing but the only nitride I have currently is on the barrel extension of the most expensive barrel I own. ...Or at least I think it's nitride....could be black oxide.

[constructor]

Is there any new information and processes for nitriding barrel extensions now in 2023? There are several high end manufacturers that use nitride barrel extensions. Are they just modifying the process/temp to ensure a proper rockwell or would the nitride still lower hardness to a measureable degree

A Nitride treated barrel extension came off a PSA barrel, on the hide April 4th.