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Posted by chriscase on Wednesday, September 17, 2008 at 12:32:08 :
In Reply to: Of course you can weld cast iron. posted by 48PW on Wednesday, September 17, 2008 at 11:26:55 :
Todays brazing rods are better/easier, and stronger than mild steel, lots stronger than cast iron. But you will need oxy-acetylene torch.
Grind a v-prep, pre-heat until the area is nearly red, then adjust torch to slightly oxygen rich- the extra oxygen will burn away any carbon. Use of flux-coated rod is easier then dipping the rod into a can of flux every few seconds, but costs lots more per inch. But Home Depot sells the coated rod.
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