Solder

It usually refers to the material used to join non-ferrous metals at low temperatures.

Soft Solder

Typically a lead-tin alloy, used to join non-ferrous metals at low temperatures, approximately 150-250ºC. A variety of hard, mainly ‘silver’ solders contain varying proportions of silver, copper, zinc and tin (not all have silver) and most have melting points approximately in the range 700-800ºC.

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