Re: Barrels: Nitrided Stainless vs. Chrome Lined 4150CMV
What if the barrel extension is already installed? How will that affect the corrosion resistance between the extension and barrel threads where the salt solution seeps in?
Re: Barrels: Nitrided Stainless vs. Chrome Lined 4150CMV
Quote:
Originally Posted by
Brahmzy
That's the problem.
You do not want to nitride a barrel after the extension has been installed. Many, many stories about the extension loosening up from the barrel. The temps and process are so extreme, the two pieces loosen.
Not good.
From what I understand that wasn't stainless barrels and it only affected a small batch. Some of the same barrels were not treated and had the extension loosen due to not being torqued to spec. So IIRC nitride treatment got a bad name due to a careless few individuals.
ETA:
You can also take a few steps pre-treatment to help assure the extension won't loosen if that's something you're worried about. I'm asking about corrosion resistance of the threads and if the process will continue to react under there since the threads can't be reached. The extension shouldn't be removed after treatment. So I wonder if there's an extra step taken that stops the reaction that wouldn't be possible under the threads unless a chemical could be applied that would seep in between the threads and stop the reaction.