Siver solder melting point.

[Maurice Cox 1Participant @mauricecox1]

[Maurice Cox 1Participant @mauricecox1]

I recently made a mistake while fabricating an item from copper, using silver solder (Easiflo No 2) and had to remove the offending part. Does the melting point of silver solder rise after it has been melted once, as I had the devil's own job getting it apart, or is it just my imagination?

[Thor 🇳🇴Participant @thor]

Hi Maurice,

I have the same experience as you, it seems that the melting point of silver (hard) solder increases slightly for each melting, this is for jewelry but may be of help.This increase in melting point may also be of help if you braze several items together and let the work cool inbetween each brazing.

Thor

[Brian HParticipant @brianh50089]

Hello Maurice, the silver solder forms another alloy, mixing with the metal of the workpiece and this normally has a higher melting point that the silver solder alone.

Brian

[Neil WyattModerator @neilwyatt]

In short yes, if you are careful you can 'step braze' using the same alloy.

Neil

[Maurice Cox 1Participant @mauricecox1]

Thanks for that gents. I have step brazen like this in the past, but was not sure if the effect was real, or if I'd just been lucky. Nice to know for sure.

Maurice

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