On 16/07/14 14:50, F Murtz wrote:
The Natural Philosopher wrote:
On 16/07/14 05:29, F Murtz wrote:


The silver solder that plumbers use for copper pipe is usually only 2%
silver

Plumbers don't use silver solder for copper pipe.





It is extremely common in Australia and I can not believe that it is not
in UK by professionals.
There is a whole range of fittings made specifically for the purpose.
Home handymen have a different range of fittings with a band of soft
solder in them, professionals do sometimes soft solder when they can't
get their oxy near(or mapp gas in a pinch)

Soft solder is not silver solder.

It used to be lead/tin but now we have gone lead free its mainly tin
IIRC copper and a little silver to help it flow by messing around with
the alloys eutectic wotsits.

The term SILVER solder refers to a calls of hard high temperature
solders with much higher silver content that are not used in plumbing
applications.


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