Differences between Welding, Soldering and Brazing

Welding, Soldering and Brazing are the process used for joining separate pieces of metal. Each type of joining process has its own significance. Type of joining process to be used depends on many factors. In this article I have written the three major differences the welding, soldering and brazing joints.

S.No	Welding	Soldering	Brazing
1	Welding joints are strongest joints used to bear the load. Strength of the welded portion of joint is usually more than the strength of base metal.	Soldering joints are weakest joints out of three. Not meant to bear the load. Use to make electrical contacts generally.	Brazing are weaker than welding joints but stronger than soldering joints. This can be used to bear the load up to some extent.
2	Temperature required is 3800 degree Centigrade in Welding joints.	Temperature requirement is up to 450 degree Centigrade in Soldering joints.	Temperature may go to 600 degree Centigrade in Brazing joints.
3	Work piece to be joined need to be heated till their melting point.	Heating of the work pieces is not required	Work pieces are heated but below their melting point.