Can you copper weld a broken frying pan? Go copper!

Traditional practice is the crack, according to the length of the crack appropriate to play a few curium, no brazing. My analysis, this is because although the iron pot is a gray stubble cast iron, but in the brazing of local at least seven or eight hundred degrees of heating, very thin cast iron is difficult to ensure that after the application of welding does not occur cold brittle crack. Because of the geometry of the pot is difficult to do a good job of heat treatment of the weld. Even if you can do its construction is very difficult. I'm afraid the cost is greater than the cost of a new pan. The cost is not worth it.