Hi list - I found it!
Daniel1312
From info at automec.co.uk (Jon Smith)
Thank you for your letter received this morning.
The brake tubing we use to manufacture our pipes is specifically made as
"brake
piping", it conforms to BS 2871 part3,C106. This material is 100%
electrically and
pressure tested. Every batch is also destructively tested for tensile and
burst pressure
results. Residue testing to BLS.30.JC.101 is also carrier out on every batch
to ensure
cleanliness standards are met. The burst pressure on 3/16" tube (ie the size
used for
brakes is 14000 lb/in. Please note that the SAE standard for your flexible
hoses is only
2500. Please also note importantly that only our brake tube at .9mm (20swg)
wall
thickness conforms to the above standards. As long as the tube conforms to
these you
will not have a problem.
Please remember that these criteria apply only to the tube itself, how the
pipe is fitted
is something we can not control. ALL piping, not just copper or copper
nickel, but
also steel pipe must be clipped sufficiently, we recommend every 12-14 inches.
We supply both copper and copper nickel tubing, the copper nickel tube being
.7mm
wall thickness and slightly harder to work with because it has been annealed.
They are
both excellent tubes and we supply both to such manufactures as TVR, Caterham
Cars, McLaren Cars, Dax, Aston Martin to name but a few.
Some people prefer Copper Nickel because it looks more like steel, others
prefer the
ease at which the copper bends, the choice at the end of the day is yours,
just please
remember to use tube which conforms to the standards I have mentioned.
If we can be of any further assistance then please do not hesitate to contact
us,
Kind Regards
Jon Smith.
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