Science, asked by azkia, 5 months ago

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Answered by deoradeora1997

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The melting points of tin and lead are 232°C and 328°C respectively, whilst the solder melts at a lower temperature than either of these. (Lead-free solder tends to melt at about 220°C). Thus the order of melting is: solder, tin and lead and the order of solidifying is the opposite.

Answered by Anonymous

The greater the tin concentration, the greater the solder's tensile and shear strengths. ... Alloys commonly used for electrical soldering are 60/40 Sn-Pb, which melts at 188 °C (370 °F), and 63/37 Sn-Pb used principally in electrical/electronic work.

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