04/02/2026
Soldering is a process in which two or more metal items are joined together by melting a filler metal into the joint. Soldering is used to form a permanent connection between electronic components.
Solder is metal alloy usually made of tin and lead which is melted using a hot iron. The iron is heated to temperatures above 600 degrees Fahrenheit which then cools to create a strong electrical bond.
Please see Common electronic components repairs and hand soldering techniques for definition of terms and methods used in soldering and desoldering electronic repair.
