Quote:
Originally Posted by XYZsniper
I've welded cast iron before
You need to pre-heat the metal with torches and use a temperature paint stick to know when it was hot enough. Then welded like normal with a mig.
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I hope you used nickel wire in your MIG, because copper plated steel wire will make a brittle weld. If you did, it just stresses the point I made above, dont weld cast unless you know what you are doing, which you clearly do.