Process and coated welding rod for welding white cast iron

A process for the electric arc welding of cast iron containing, by weight, about 1.80 to about 3.60 percent carbon, about 0.50 to about 1.90 percent silicon, about 0.25 to about 0.80 percent manganese, about 0.06 to about 0.20 percent sulphur, about 0.06 to about 0.18 percent phosphorus, with the balance being iron plus incidental impurities which comprises:

• electrically applying to the cast iron to be welded, at welding temperatures, a welding material obtained by simultaneously melting a welding rod containing, by weight, from about 2.30 to about 3.00 percent carbon, from about 0.03 to about 0.06 percent chromium, from about 0.01 to about 0.04 percent nickel, about 0.01 percent molybdenum, from about 0.82 to about 0.90 percent manganese, from about 0.023 to about 0.032 percent sulphur, from about 0.103 to about 0.115 percent phosphorus, about 2.64 percent silicon, with the balance being iron plus incidential impurities, said welding rod being provided with an effective amount of a low hydrogen fluxing material comprised of a mixture of calcium carbonate, ferric oxide, aluminum oxide, silicon dioxide and clay.