Post your pictures of baffle erosion.
This site works well for photo hosting
https://imgbb.com/
Form 1 and commercial cans.
Just add some information regarding the baffle material, cone type, distance to bore, muzzle device used and estimated round. Maybe type of ammo used as well.
Very curious about 316 and 304 ss and how it handles 22lr.

Also what would be interesting as well would be looking at wall erosion, especially in form 1s. Most form 1 suppressors will have a separate spacer for the blast chamber and most of the time it won’t be a single section, it will be 2 spacers and with spacers there is a connecting point. I’m wondering if the spacers can erode and cause wobble in a can after sometime. Those hot gasses going into the slit between the spacers and eroding away at it.

Hannibalbarca wrote: ↑Wed Dec 09, 2020 3:47 am
Very curious about 316 and 304 ss and how it handles 22lr.

Also what would be interesting as well would be looking at wall erosion, especially in form 1s. Most form 1 suppressors will have a separate spacer for the blast chamber and most of the time it won’t be a single section, it will be 2 spacers and with spacers there is a connecting point. I’m wondering if the spacers can erode and cause wobble in a can after sometime. Those hot gasses going into the slit between the spacers and eroding away at it.

316 if you thread 304 if welded both work well in rimfire, 17-4 is even better.
I've only seen blast chambers using a single spacer. Other than the blast baffle, erosion of the walls is not common even at the joints. This is mostly because of good material choices.

I have seen one case of near pressure wall failure due to erosion. It was a aluminum .308 suppressor that used no spacer. Aluminum is tough but not up to the heat and pressure of centerfire rifle calibers.

Hope you get allot of pictures and explanations.

-CL

Aluminum .308 suppressor - holy cow!!! Used on a 12" barrel too?

Matt in TN wrote: ↑Thu Dec 10, 2020 11:54 am Aluminum .308 suppressor - holy cow!!! Used on a 12" barrel too?

Did I mention it was full auto. The pulse cut a narrow ring of pits. Another great reason not to use aluminum on
rifle calibers.
-CL

Aluminum material properties drop off rapidly with increasing temperature. I would imagine Al baffles in a center-fire rifle can wouldn't last long.

304/316, 17-4 etc. are good choices, anything that is re-sulfurized (416, 303, 1215, 12L14) is going to ablate quickly. The sulfur/lead impurities that make those alloys easy to machine will melt at a low temp and cause erosion.

My form 4 rifle can has some erosion on the 2nd baffle; I will post some pics when I can. There is light contact between the brake and the blast baffle so the blast baffle doesn't see much wear. It is 17-4, not sure of the heat treat.