What to do

[woodchopper]

So I was getting some steel and this followed me home, it's 20"

It just called to me from the cutoff bin




edited to add that the pipe is roll stamped.. XXH A016

 

[tiriaq]

Uh-Oh.

 

[I Dont Care About You]

Well I know what I'd do with it. Wall thickness is a little bit much but a boring bar could take care of that.

 

[EasternCountryBoy]

Mini canon. If it’s A105

 

[Snider shooter]

Golf balls are too big for it. They make good cannon balls.

 

[Redneck Hippy]

Start of a KS-23 clone build?

 

[mmattockx]

Well I know what I'd do with it. Wall thickness is a little bit much but a boring bar could take care of that.

We are clearly thinking the same thing. Would leave a lot of chips on the floor when done, though.

Since it looks to be pipe it will be very soft and not good for much of anything needing significant strength.


Mark

 

[kamlooky]

Beet thuh crap out of thet thar blew bawl.

 

[fingers284]

Since it looks to be pipe it will be very soft and not good for much of anything needing significant strength.

It apears to be , and likely is DOM pipe and with a sidewall of .380 , completely strong enough for BP cannon tube "as is" but i wouldnt bore it out much as retaining that sidewall thickness is essential. Or you could bore out if you desire but over-sleeve the chamber area with a re-enforcing sleeve for the max pressure zone.

 

[billdick]

Simply machine a bullet mold that matches the ID. No boring just polishing the outside.

 

[redbirddog]

its perfect for a cannon.

as for ball molds. new project, make some from custom sand molds. get green sand and a box. ytube is full of people casting all sort of things.

 

[mmattockx]

It apears to be , and likely is DOM pipe

DOM tubing and pipe are not at all the same thing. DOM will be cold drawn and have a yield strength much higher than line pipe. Basic yield strength on A53 or A106 Gr.B line pipe is 35,000psi, which is very soft by steel standards. Even mild steel structural members are 50,000psi yield and that is considered low strength overall.

Since the weight is called out as XXS (extra extra strong, which is not correct, it should be XXH for extra extra heavy) I assume it is line pipe and not tubing. The OD and ID dimensions also match up to 1 1/4" line pipe for XXS/XXH wall thickness.

I also think OP should make a cannon and post a build thread here. I know he's capable of the work and it would be great following along, even if I don't want one myself.


Mark

 

[antiqueguy]

Looks like good cannon material if it is DOM anyway. I’d hone the bore a bit just to get rid of any mill scale and polish it a bit. Though I’d also probably sleeve the outside for the frost few inches as well mainly to give me somewhere to weld trunions on without welding to the barrel.

Been thinking of going local metal supply myself and making one though I think I’m going to go .75 ish caliber.

 

[bearhunter]

If you intend to make a cannon from that tube, machine your barrel to the profile you want, but just take enough off the breaching area, to keep it all uniform, then sweat a sleeve over it for something to mount the trunions as well as strength.

It would also make a great Blunderbuss barrel.

 

[fingers284]

DOM tubing and pipe are not at all the same thing. DOM will be cold drawn and have a yield strength much higher than line pipe. Basic yield strength on A53 or A106 Gr.B line pipe is 35,000psi, which is very soft by steel standards. Even mild steel structural members are 50,000psi yield and that is considered low strength overall.

Since the weight is called out as XXS (extra extra strong, which is not correct, it should be XXH for extra extra heavy) I assume it is line pipe and not tubing. The OD and ID dimensions also match up to 1 1/4" line pipe for XXS/XXH wall thickness.

I also think OP should make a cannon and post a build thread here. I know he's capable of the work and it would be great following along, even if I don't want one myself.


Mark

t6haank you for the info. I'm curious, if that is "pipe" as you suggest would it not have the weld seam obvious to be seen...if it has no weld seam it should still be described as DOM would it not?

 

[tiriaq]

Welded tube can be DOM to produce a seamless finish. There is also DOM tube which is made without a seam.

 

[woodchopper]

DOM tubing and pipe are not at all the same thing. DOM will be cold drawn and have a yield strength much higher than line pipe. Basic yield strength on A53 or A106 Gr.B line pipe is 35,000psi, which is very soft by steel standards. Even mild steel structural members are 50,000psi yield and that is considered low strength overall.

Since the weight is called out as XXS (extra extra strong, which is not correct, it should be XXH for extra extra heavy) I assume it is line pipe and not tubing. The OD and ID dimensions also match up to 1 1/4" line pipe for XXS/XXH wall thickness.

I also think OP should make a cannon and post a build thread here. I know he's capable of the work and it would be great following along, even if I don't want one myself.


Mark

it is marked XXH A016. So you are correct.

No seams that I can see.

 

[antiqueguy]

t6haank you for the info. I'm curious, if that is "pipe" as you suggest would it not have the weld seam obvious to be seen...if it has no weld seam it should still be described as DOM would it not?

All tubing starts with a seam but dom is drawn over a mandrel and consistent as to ID and OD. this is why we use it for roll cages as it’s consistent and you can chose the wall thickness required(.120) if using structural welded tubing wall thickness is not always consistent so you have to go thicker.

Pipe generally listed as ID and is usually not very consistent and not usually true to the ID pipe should not be used for anything structural.

Identifying what you have is generally fairly easy measure around and see if it is consistent with what is available for pipe roughly based on the dimensions. but again pipe is usually a close enough situation as it only has to contain/hold something and contain minimal pressure.

 

[Licensed to kill]

.

 

[antiqueguy]

.

Dom tubing is usually ERW tubing that is drawn over a mandrel to make it consistent wall thickness and I’d/od. Usually starts out slightly thicker.
I have seen 1 inch dom(standard off the shelf) tubing with a .188 wall turned muzzleloader barrel. tested to destruction and the only thing that finally did it in was 2 short started balls on top of a very large powder charge.