Absolutely no offense taken here...
It was his suggestion. I know he had done roll cages for the film industry,
etc. It
was simply a food-for-thought suggestion from me... in terms of safety and
regulations... ANYTHING one uses should be researched.
I do know this welder emphasized... HUGELY... that it had to be "WELDABLE"
chrome
molly... apparently there is similar material that is not... perhaps this is
where the
"welds must be stabilized" comes into play or something... I would not know.
Nevertheless... I offered the suggestion for what it was... a suggestion to
me... and
I clarified his background... an experienced multi-licensed welder... that's
all. An
engineer, he is not. It was not offered as the end-all solution.
Definitely... one should do their homework before deciding on anything... It's
simply something you could bring up, in discussion, with your fabricator...
--Justin
Bob Lang wrote:
> On Fri, 24 Mar 2000, jmwagner wrote:
>
> > A welder at a shop I used to work out... who has done underwater welding
>on oil
> > derricks, etc.... (trained and licensed up the kazoo!) recommended minimum 1
> > 3/4", "WELDABLE" Chrome Moly 41-30 steel.
>
> I don't mean any disrespect to your welder friend...
>
> Please pay attention to the rules bodies with respect to the material in
> the cage. Currently the GCR reccommends various size pipe depending on
> the weight of the car, but there's also cautions about the welding
> process. I'm most certainly not an expert welder, but I recall the
> wording to be something like "chrome moly tubing is not recommended as
> the welds must be stabilized" or something to that effect.
>
> Bottom line - they suggest DOM tubing.
>
> regards,
> rml
>
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