"Jim Donohue" wrote in message
news:fIm3e.2804$ZV5.253@fed1read05...
I would need to see a reference on that Meindert. There are of course
copper embrittlement mechanisms. But I don't believe any of them work at
soldering temperatures.

http://www.key-to-metals.com/Article25.htm

The mechanism of which I am aware is simple work hardening when a flexing
section works against one rigidized by solder. Easily handled by support
of
the wire. There is a 75 year history of high quality military style
connectors using solder to mate wire to connector pins. This mechanism is
routinely used in high stress situations.

In these applications, there is always a strain relief on the connector. CSA
rules also specify that soldered joints MUST have an extra mechanical
connection.

I know of no concerns with
embrittlement...just the need to support the wire mechanically.

Hydrogen embrittlement is generally considered to occur at temperatures
much
higher than soldering.

I think the quoted article says otherwise.

Meindert