Composition and Types Soft Solders

The solders generally used in industry are alloys of tin, lead and zinc. Tin-lead solders are used to join most of the metals as they have good corrosion resistance to most of the metals. Sometimes silver, cadmium, antimony and bismuth are also added to solders. It is essential that solders must have a lower melting point than the parent metals. The melting point of a solder should be as near as possible to the parent metal to be joined so that a more tenacious joint is affected. Composition of Soft Solder…

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