Re: [PSUBS-MAILIST] welding used steel

[Warren Greenway <opensourcesub@yahoo.com>]

The steel must be cleaned with a de-greasing type
cleaner, but it welds perfectly once surface cleaned.
I can attest to this from personal experience. The
other thing I can attest to is the smell of an old
and heavily used propane tank once you cut into it! 
Wow! There is nothing as potent!

Warren.

--- Emile <2stroke@hetnet.nl> wrote:
> Hello,
> 
> A few days ago I came accross a pressure vessel from
> a truch trailer wich shape (Full round endcaps, some
> 12 mm wall thickness) would be very suitable for a
> large psub.
> I have not direct the intention for such a large
> project but I wonder if the steel is still weldable
> since it is used for propane /butane liquid gas for
> years.
> As a former ship repairer I know it is
> NOT(reasonaly)possible to weld steel from diesel
> tanks because the diesel gets in the porosity of the
> steel and as liquid gas is also a hydrocarbon
> fuel...
> 
> Grs,
> Emile D.L. van Essen
> www.AiResearch.nl 


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