Salt bath nitriding an action?

[BJ44BJ]

Has anyone had this done to a custom action? BAT recommends this for thier actions and I can't find much info about it being done on actions. If you have had it done what do you think about it, who did it for you and was it worth it? a picture would be nice as well. Thanks

 

[Minesweeper3433]

See if I can find it for you but a gentlemen was selling his rifle that had had this done to it as well as the barrels.http://forum.accurateshooter.com/index.php?topic=3775447.0

 

[Jeffvn]

I'm having it done to my BAT HR single shot as we speak. I'll let you know how it works when I get it back. I forget teh name of the comany doing the process, but its the one that BAT recommended.

Jeffvn

 

[boltfluter]

If you treat the bolt as well, be sure the handle is not silver soldered on as it is a 900 deg. process. A soldered handle may fall off.

Regards, Paul.

www.boltfluting.com

 

[rcw3]

While I can understand the potential benefits that may be acquired by doing it to a barrel, what is it supposed to do for an action?

 

[Minesweeper3433]

corrosion resistance.

 

[wwbrown]

When I ordered my Defiance drop port action they said I could get the bolt nitrited, they did not recommend I do the receiver. I will have the bolt done when I have a couple barrels ready to send in.

One benefit of nitriting for actions that the bolt and receiver are of the same material is it will reduce/eliminate galling, the main reason I am doing the Defiance bolt. Another benefit is the the friction reduction should make the action feel slicker.

wade

 

[butchlambert]

Check this on this forum. http://bulletin.accurateshooter.com/2010/02/shot-show-report-mmi-trutec-salt-bath-nitriding-for-barrels/ Some receivers are not suitable for this. It is in simple terms a low temp case hardening. It helps in corrosion resistance, a slick finish, and longevity. I love it on my barrels. It has had no effect on accuracy but greatly extends the barrel life.

 

[jscandale]

One benefit of nitriting for actions that the bolt and receiver are of the same material is it will reduce/eliminate galling,

wade

That is the big reason why I prefer chrome moly actions. I have also had several rifle and shotgun actions hard chromed. They look nice and are very slick to run.

JS

 

[Robert]

That is the big reason why I prefer chrome moly actions. I have also had several rifle and shotgun actions hard chromed. They look nice and are very slick to run.

JS
[/quote]

John,
Electrolytic process (hard chrome) does not apply evenly and mostly in bores where an hardnes gain is more important than outside, where only aspect counts.
Also, the layer has a thickness who need to be considered as it can impair some tight fits.
Electroless Nickel high-phosphor plating could be considered, as it gives a much more even layer, also in the most complex places, bores as well. Hardened at 350-375°C (665F), it hardens to some 52-55HRC, and this temperature does not affect the core hardness of the part as it is under most tempering temperatures.
But, for all those subsequent treatments, the steel alloy and state should be know precisely as substrate embrittlement is always to consider.
I think plating in general can represent a better solution if considered carefully.
There is also the M-E D.L.C (diamod like coating or tribo-coating) nice black finish as already used by some action makers.
R.G.C

 

[Robert]

Check this on this forum. http://bulletin.accurateshooter.com/2010/02/shot-show-report-mmi-trutec-salt-bath-nitriding-for-barrels/ Some receivers are not suitable for this. It is in simple terms a low temp case hardening. It helps in corrosion resistance, a slick finish, and longevity. I love it on my barrels. It has had no effect on accuracy but greatly extends the barrel life.

Butch
I do not think the some 600°C (100F) temp of the QPQ process is to be considered as ‘low temperature” as it correspond to a high tempering temperature.
I think before considering surface thermo-chemical hardening, a mechanical part such as a receiver should be hardness-tested and, if over 40-42 HRC, QPQ would effectively increase surface hardness to what the steel can accept, but do negative on heart hardness of the receiver.
R.G.C

 

[butchlambert]

Robert,
I think Joel, MMi Trutec, has the parts done at a lower temp.