[modeleng] Re: Vanes Boiler Works

Harry,

I haven't cut up any propane cylinder yet, so I wasn't aware of the wall 
thickness of them, do you have any data on that/experience with this?

Patrick


Harry Wade wrote:
> At 05:38 PM 9/19/07 +0200, you wrote:
>   
>> Today, I took delivery of a bit of steam ephemera. - Patrick
>>     
>
> Patrick,
>         Of concern should be the wall thickness of your barrel.  Although
> 1/8" or even less will meet the mathematical strength requirements for a
> small say a small 100psi boiler, if the boiler is to have any life
> expectancy at all the walls (and heads) need to be thicker for heat and
> corrosion allowance.  For welded steel boilers for large scale model locos
> in the US, say those with barrel diameters of 8" to 12", 1/4" is an
> absolute minimun with a 5/16" or even 3/8" thickness being common.
>
> Regards,
> Harry
>
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