soft solder

noun

1. a solder fusible at temperatures below 700°F (370°C), generally an alloy of lead and tin.

Word History and Origins

Origin of soft solder¹

First recorded in 1835–45

Example Sentences

On the outside of this soft solder a strip of tin six inches or a trifle less in length, by one fourth inch wide and one thirty-second of an inch thick.

From Project Gutenberg

“Not soft solder, I’ll bet,” murmured Dan.

From Project Gutenberg

“I have known Captain Savery, at York’s buildings, to make steam eight or ten times stronger than common air; and then its heat was so great that it would melt common soft solder, and its strength so great as to blow open several joints of the machine; so that he was forced to be at the pains and charge to have all his joints soldered with spelter or hard solder.”

From Project Gutenberg

Then, using standard soft solder, the iron makes a neat, strong joint.

From Time Magazine Archive

These documents as reported were then too hard metal in view of a majority in the House and were transmuted to soft solder by the process of political alchemy well understood by the creatures of the king.

From Project Gutenberg