Difference Between Soldering and Brazing

Difference Between Soldering and Brazing

S. No.	*Soldering*	*Brazing*
1	Soldering is usually done at a temperature below 200 ⁰C.	Brazing is done at a temperature above 450 ⁰C but below the critical temperature of that particular metal.
2	The joints that are developed in soldering process are weaker than the joints which are formed in brazing	Brazing results in stronger joints.
3	Soldering requires a special training.	For brazing there is no need of such special type of training.
4	Soldering is a cheaper process.	Brazing is quite costly.
5	Soldering is really a very easy and quick process.	Brazing is not easy and a very difficult for automation.
6	Heating of workpieces is not required.	Work pieces are heated but below their melting points.
7	Preheating of base metal does not require in soldering	Preheating of base metal is require to produce quality joints
8	Solder is used in soldering.	Spelter is used in brazing.
9	Generally, zinc and rosin chlorides are used as flux.	In brazing, ash and borax is used as flux.
10	In soldering, soldered parts are to be cleaned with water.	In brazing, brazed parts are to be allowed to cool.
11	Soldering is possible only in case of thin as well as similar sheet metals.	Brazing is suitable with thicker as well as similar or dissimilar metal parts.

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