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What is the Difference Between Brazing and Soldering?

  1. Soldering occurs at much lower temperatures, typically 150C˚ to 260C˚ (300˚F to 500˚F) while brazing is usually occurs at the range of 1200˚F (650˚C) to 2300˚F (1260˚C)
  2. Brazed joints are capable of handling stress and fatigue placed on the joints as opposed to the soldered joints.
  3. Brazing allows for intensive inter-alloying between the filler metal and the base metals resulting into a much stronger joint than that formed by soldering since it allows minimal inter-alloying between the filler metal and the base metals.
  4. Brazing requires a bigger overlap of the base metals in contrary to soldering which does not necessarily need a huge overlap between the base metals.
  5. In a soldered joint, the “cap” or fillet provides minimal additional strength while a brazed jointed needs to be fabricated so as to achieve a well-developed fillet or “cap” between the metal bases.
  6. The high temperatures involved in brazing causes the base metal to anneal or soften
  7. A brazed joint “makes itself”, in the sense that capillary action, rather than operator manipulation is responsible for the flowing of the filler metal completely through the joint.
  8. The filler metal used in brazing is more expensive than that used for soldering due to the different temperatures involved.

Images Reference :

1. By Mass Communication Specialist Seaman Whitfield M. Palmer [Public domain], via Wikimedia Commons
2. By Aisart (Own work) [CC BY-SA 3.0 or GFDL], via Wikimedia Commons

MLA Format :

Smith, Peter. “Differences Between Brazing and Soldering | Brazing vs. Soldering -.” Something Is Difference. 20 May 2015. Web. 25 May 2015. <http://whatisdifferencebetween.net/technology/mechanics/differences-between-brazing-and-soldering-brazing-vs-soldering/>.

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