Quote:
Originally Posted by nkaminar
Pete, The nickel rod has worked well for me but I admit that it was years ago. So if the nickel rod is old technology, how is cast iron welded today?
Old man learning new tricks.
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Like Brent says, Muggy is one way, especially if the job requires stick welding
because of accessibility.
TIG is preferred. The rod will depend on the type of cast iron being welded.
ER70 works for most. Bronze or a silver alloy is used also. Sometimes applied with a gas torch.
Plain cast iron rod is also used, applied with a gas torch and flux. This is an excellent repair that color matches extremely well but due to having to heat the whole block or part usually requires re-machining all machined surfaces due to oxidation.