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Smitty Two Smitty Two is offline
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Default why 60-40 solder?

In article
,
wrote:

why is 63-37 eutectic solder not universally preferred?


If you're asking why 60-40 still exists, I'd chalk it up to residual
demand from when it *was* the universal standard. I suppose there are
companies around who still have that formulation in their process
specifications and it's easier to keep buying it than to rewrite the
documentation.