Joining cast iron and steel

[Robert]

I have had very poor experience with TIG brazing. My joints were very weak and failed due to melting of the base metal and brittle joints. It is hard not to melt the base metal with TIG even with the amps down. I would use conventional brazing with gas. If the pieces are small MAPP gas will do it. Larger pieces may require the heat of OA. Nickel rods will work but I think that may be harder than a simple braze.

TIG brazed:



Failure !:



Robert