[modeleng] Re: Vanes Boiler Works

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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