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Tin (tin-lead solder)

There are variety of soldering alloys, most popular is tin-lead in 40-60 proportion. Special ones can contain melting-simplifying additives such as Bi, Cd, Tl, In, Hg, but most of these additives due to toxicity are RoHS incompliant. Lowest melting temperature non-toxic solder known is tin-lead alloy with 93% of tin.

Comes in 1-3 mm wire or tube with flux.

Solder wire

Best solder becomes glossy after cooling. Solder tube is good, if there is rosin inside. Avoid using solder with active flux. Solder surface brightness denotes proportion. Darker alloys containing more lead, brighter - more tin.


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