Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chromoly or Stainless?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="P7M13" data-source="post: 2299047" data-attributes="member: 94154"><p>Have you ever had your barrels cut and tested for bore nitride penetration depth?</p><p>I arranged with a local heat treater in the Portland area to do the tests, but been so darned busy have not had time to make it over. </p><p>When I find the time, I'll bring him some dead 416R and CrMo barrels to nitrocarburize and test. He had his doubts about the efficacy on barrels in an atmospheric furnace because it still requires flow of the atmosphere through the barrel and the heat/diffusion time is much longer. Plasma is strictly line of sight, so is ineffective.</p><p>Salt baths are the best and fastest. There aren't too many places that still do a fluidized bed of nitrogen rich salts, or at least I had a hard time finding anyone in the PNW. Back when I designed heat treating equipment, we used to do it with NaCN if it wasn't an ammonia atmosphere furnace.</p></blockquote><p></p>
[QUOTE="P7M13, post: 2299047, member: 94154"] Have you ever had your barrels cut and tested for bore nitride penetration depth? I arranged with a local heat treater in the Portland area to do the tests, but been so darned busy have not had time to make it over. When I find the time, I'll bring him some dead 416R and CrMo barrels to nitrocarburize and test. He had his doubts about the efficacy on barrels in an atmospheric furnace because it still requires flow of the atmosphere through the barrel and the heat/diffusion time is much longer. Plasma is strictly line of sight, so is ineffective. Salt baths are the best and fastest. There aren't too many places that still do a fluidized bed of nitrogen rich salts, or at least I had a hard time finding anyone in the PNW. Back when I designed heat treating equipment, we used to do it with NaCN if it wasn't an ammonia atmosphere furnace. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Chromoly or Stainless?
Top