ABSTRACT
E. Soldering of Lead and Lead Alloys In the soldering process, only the filler material is melted and the base material that is to be joined remains intact as a solid. This requires the filler material (solder) to have a significantly lower melting point than the lead alloy sections being welded. In this section, only soldering of lead to lead or lead-coated products is discussed. The use of lead and lead alloys in soldering other metals is discussed in Chapter 4. Lead and lead alloys are easily soldered when proper care is taken not to melt the base metals, which also have relatively low melting temperatures. Solder joints in lead are generally confined to plumbing, some architectural uses, and lead-sheathed cables. The use of soldered lead joints in the chemical construction field, where highly corrosive chemicals are confined or transported, is not generally recommended. Such joints should be welded.
