Mn Bronze C86500 - Welding or Brazing 1

[Guest102023]

What is the weldability and brazeability for this alloy?

 

[MiketheEngineer]

I am pretty sure it will braze - not sure about welding. Check ASME

 

[btrueblood]

http://www.copper.org/resources/properties/db/CDAPropertiesResultServlet.jsp?action=search

The Copper Association website,

http://www.copper.org

has properties listed for this (and every other C-series) alloy. Braze- and solder-ability are listed as "fair", and welding by any method is listed as "poor". This is most likely due to the 39% Zinc content, as it will outgas horribly during fusion of the alloy.

If you want something weldable, try the silicon bronzes.

 

[metengr]

Weldability is lousy. A technical term that I coined that means a material weldability is between poor and not weldable.

 

[Guest102023]

Thanks btrueblood, I later got around to the CDA, which is a pretty good resource for those times I need to join a copper alloy, about once every three years.

Metengr, can I steal your terminology? I think I could apply it more frequently than once every three years.

 

[Guest102023]

Interference fit it is (I was not initially offered that option).

No trouble doing the math, but how important is surface finish? Fit will be class FN3.