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Soldering advice

Community Veteran
Posts: 7,911
Thanks: 592
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Registered: 02-08-2007

Soldering advice

I Have done plenty of soldering in my time but recently needed to solder 2 small wires made of different material together, one  copper stranded and one metal stranded, they will be carrying a small current with at 12v DC  basically it's something I have fitted in my car.
My question, is there likely to be any problem in soldering wires of different metals together ? 
8 REPLIES
Community Veteran
Posts: 1,136
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Registered: 30-07-2007

Re: Soldering advice

I don't see why not, the solder itself will be a 3rd metal anyway.
When components are soldered on to a board the contact pins won't be made of the same metal as the conductive layer on the PCB, so that'd be 3 metals again.
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TORPC
Grafter
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Registered: 08-12-2013

Re: Soldering advice

No there shouldnt be
However a flux solder may be required
Scribe
Grafter
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Registered: 05-02-2011

Re: Soldering advice

As long as it isn't aluminium it should be OK . Sounds like it might be tinned copper which is easier to solder that plain copper.
Community Veteran
Posts: 7,911
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Registered: 02-08-2007

Re: Soldering advice

Thanks for the replies.
I Know some metals can react with other metals but thought I would ask to be on the safe side.
Smiley Smiley Smiley
Community Veteran
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Registered: 06-11-2007

Re: Soldering advice

If possible, just make sure you have a good "rubber sleeve" over the joint....
TORPC
Grafter
Posts: 5,163
Registered: 08-12-2013

Re: Soldering advice

Heat shrink tube may suffice
nanotm
Pro
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Registered: 11-02-2013

Re: Soldering advice

just tin the ends of both bits of wire before you solder them together (I'd use a solder sleeve or a soldered crimp myself) to ensure you get a good joint
just because your paranoid doesn't mean they aren't out to get you
Community Veteran
Posts: 7,911
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Registered: 02-08-2007

Re: Soldering advice

Quote from: TORPC
Heat shrink tube may suffice
I Have some, but unfortunately could not use it as I was soldering into existing wires which I bared rather than cut through them.