Patent ID: 6339209
Filing Date: 2002-01-15
Classification: B23K

Abstract:
An electrode for use in arc welding of a steel workpiece with a metal sheath having at least about 1 percent chromium by weight of said electrode, said electrode including a flux comprising a zirconium compound containing system for forming slag on the surface of the deposited weld metal, said zirconium compound containing flux system comprising a silicon compound, a titanium compound, a zirconium compound and a melting control agent, the weight ratio of said zirconium compound to said titanium compound is about 1:1.5 to about 10:1, the weight ratio of said zirconium compound to said silicon compound is about 1:0.01 to about 1:0.9, the silicon compound content plus the zirconium compound content plus the melting control agent content is greater than the titanium compound content, said silicon compound content is about 5-40 weight percent of said flux, said titanium compound content is about 5 to less than about 50 weight percent of said flux, said zirconium compound content is about 10-90 weight percent of said flux, said melting control agent is about 0-15 weight percent of said flux, said zirconium compound including zirconia, said silicon compound including silica, said titanium compound including titania, said melting control agent including an oxide selected from the group consisting of an oxide of aluminum, an oxide of manganese, an oxide of tin, and mixtures thereof.