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Imperial Tube

6.25" o.d. x 6.00" i.d.

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Colin Rhodes 221/04/2019 19:53:28
19 forum posts
9 photos

Any ideas for a supplier. Need for a Smokebox.

Jeff Dayman21/04/2019 20:09:58
1472 forum posts
37 photos

ID? OD? Length? material? some hints would help. Also what country / region are you in?

JasonB21/04/2019 20:12:52
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Moderator
15192 forum posts
1559 photos

There is a clue under the thread title.

As you look to be building a loco from MJ Eng drawings have you asked Alan if he does a rolled and welded smokebox, got the one for my traction engine from him. He does seem to list one here if it is for that loco.

 

Edited By JasonB on 21/04/2019 20:17:37

Paul Kemp21/04/2019 20:17:26
263 forum posts
9 photos

Er...... I think the clue is in the title?! 6 1/2" OD by 6.00 ID (I think with my limited maths that's about 1/8" wall thickness) and given its a smokebox probably 4 - 5" long, it's not going to be that long anyway. I would assume the exact material is immaterial but non ferrous probably best for a corrosion point of view. If you got a piece of 1/8" copper plate it shouldn't be too hard to roll it round a former if it's well annealed. Sorry don't have any suggestions for a piece of tube though.

Oops Jason beat me too it!  If it's a traction engine then agree with Jason, steel would be best, more possibilities for supply too, I got a piece of 13" OD pipeline tube for mine and turned it down to 12 5/8".

Paul.

Edited By Paul Kemp on 21/04/2019 20:22:01

Colin Rhodes 221/04/2019 20:25:38
19 forum posts
9 photos

Hi Jason,

Yes MJ. list one but they can no longer supply?

Paul,

Yes it's supposed to be 10G. The Smokebox is 10.3/16" long.

I have a 6.25 OD. Copper tube but it has a few dints in it that I mighthave to work around if I cannot find an Imperal tube supplier. My friendly neighberhood fabricating shop has rolls but cannot get down to 6" ID.

Colin

Colin Rhodes 221/04/2019 20:27:03
19 forum posts
9 photos

It's for a 5" Gauge Merchant Navy Class

Colin

JasonB21/04/2019 20:39:29
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15192 forum posts
1559 photos

Colin, if you are in MJ's part of the world try these people who do some good rolling work and will weld the ring too. They would roll it out of 3mm material.

Failing that M-Machine do 165mm OD thick wall steel seamless that could be turned down.

Colin Rhodes 221/04/2019 22:56:28
19 forum posts
9 photos

Thanks for that Jason.

i am not in MJs area but iwill try them. My lathe won't entertain 165mm, I can get it in but I cannot turn as the saddle won't pass underneath the Tube.

Colin

Jeff Dayman22/04/2019 04:38:19
1472 forum posts
37 photos

JB and Paul - no idea what clue you mean. All I see under title is "All topics / Latest posts"

I see OP responded with OD and ID and length after your posts. I take it he's in UK somewhere.

Michael Gilligan22/04/2019 06:23:59
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12943 forum posts
555 photos
Posted by Jeff Dayman on 22/04/2019 04:38:19:

JB and Paul - no idea what clue you mean. All I see under title is "All topics / Latest posts"

.

Jeff,

Scroll up to the title of this thread

... immediately below that is the subtitle.

MichaelG.

.

.

Imperial Tube

6.25" o.d. x 6.00" i.d.

All Topics | Latest Posts

Edited By Michael Gilligan on 22/04/2019 06:27:17

Colin Rhodes 222/04/2019 06:54:03
19 forum posts
9 photos

Hi Jeff,

West Yorkshire

Colin

JasonB22/04/2019 06:55:04
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Moderator
15192 forum posts
1559 photos

It also shows up in the topic listings under the thread title.

smokebox.jpg

Simon Collier22/04/2019 07:52:02
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283 forum posts
51 photos

The benefits of a 6" latheturn.jpg

Simon Collier22/04/2019 07:56:14
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283 forum posts
51 photos

8" 4 jaw holding 3/8 thick tube. Smokebox for Doncaster A3, 6-1/2" O.D. I think. Cross slide just cleared underneath by very little. Boring from the first end was OK, but it really started to ring and chatter when boring from the second end.bore.jpg

ega22/04/2019 10:24:13
1133 forum posts
94 photos

Jeff Dayman:

That problem with the title *might* be caused by an adblocker (if you are using one).

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