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Old 11-09-2017, 03:22 PM
Kawibunga Kawibunga is offline
 
Join Date: Jun 2010
Location: Calgary
Posts: 447
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Quote:
Originally Posted by TangoKilo View Post
Sorry for bumping this necro thread...

In the last 6 years has anyone gained any experience in Nitriding rifle barrels?
No experience in rifle barrels, but we Liquid Nitride 4140 all the time for downhole tools. The temperature is hot, but it does not get near hot enough to anneal or to change the phase of the metal causing a change in strength. If it goes in at a YS 110ksi, it comes out at that. We run this stuff to 90% of yield, no issues.

So my Engineering side says sure why won't it work, my farm boy side says "give'er" But I'm far from a gunsmith, so in the end would ask for their experiences. Once thing to keep in mind, it's only .004" - 006" deep. Gas Nitriding is a bit more, maybe .010" But any sharp thin edges can be prone to chip or break due to being hardened completely through......

That's my two bits.....

I wouldn't be surprised if you called up the guys at Thermex in Edmonton that they'd likely have done a few and could provide some feedback.
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