Brass Boiler

Brass Boiler

This topic has 5 replies, 4 voices, and was last updated 26 October 2014 at 18:30 by Kevin Bennett.

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26 October 2014 at 17:49 #23557
Kevin Bennett
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@kevinbennett25223
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26 October 2014 at 17:49 #167798
Kevin Bennett
Participant
@kevinbennett25223
hi guys I am building a cracker engine as I wanted to start small as I have always wanted to do a Train I will probably will be handing it to my grandson

The question is can I make a boiler from Brass as the drawings do not specify the material as looking around they are mostly copper or steel

thanks Kevin
26 October 2014 at 17:54 #167800
Ian Welford
Participant
@ianwelford58739
I don't think brass is a good idea as when it de-zincifies ( is that a word?) it becomes weak. Copper and steel are better suited I believe. Others can advise far better than me on this subject.

Hope it goes well. Ian
26 October 2014 at 17:58 #167801
JasonB
Moderator
@jasonb
Top of the drawing says "boiler copper – all joints silver soldered" Which would be the prefered material

Having said that if its just for use at home then the engine is no larger than a Mamod which have brass boilers you should be OK for occasional use.

I would also strongly suggest you fit a safety valve into the filling bush and not just a plug, again Mamod ones can be bought on e-bay and thread the bush to suit

J

Edited By JasonB on 26/10/2014 18:02:52
26 October 2014 at 18:20 #167804
Neil Wyatt
Moderator
@neilwyatt
I think Tubal Cain commented on one of his small (mamod sized) boilers that the brass could become brittle and fail in a century or so's time.

Neil
26 October 2014 at 18:30 #167808
Kevin Bennett
Participant
@kevinbennett25223
thanks for the info I have been looking at this drawing all afternoon and missed the copper bit at the top it must be the clocks going back or a blond moment

I suppose if it is for show a wall hanger and not run in public this will be ok

ty Kevin
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