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Difference between Brazing and Soldering:



Brazing is a metal joining processes, which is done by using the filler metal. It is heated above the melting point and distributed between two or more fitting parts by capillary action.

Soldering is a process in which two or more metal items are joined together by melting and then flowing a filler metal into the joint—the filler metal having a relatively low melting point.

Now Let's look at the Differences between them:
 
S.No
Brazing
Soldering
1
If the filler material melting point temperature is more than 423  and less than the melting point temperature of base material
If the filler material melting point temperature is less than 423^oC
2
Filler material is an alloy of copper and zinc, copper and aluminum, copper and silver it is known as spelter
Filler material is a an alloy of lead and tin this is known as solder
3
Filer material is enter in to the joint by means of capillary action
Filler material is enter in to the joint by means of capillary action
4
The strength of the joint is more
The strength of the joint is less
5
Flux is borax, boric acid, chloride and fluorides
Flux is zinc chloride, ammonium chloride
6
Mainly the process is used for the joining of pipes to produce leak proof joints
It will be used in electrode circuit design and printed circuit board
7

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