Abstract: A cluster welding electrode assembly is provided which permits the deposition of maximum weights of weld metal with minimum amperage and voltage values. The assembly is comprised of a central rod electrode having circumferentially grouped or nested thereabout in longitudinally aligned relationship a plurality of lesser diameter rod electrodes. Each of the rods in the assembly carries thereon a novel flux coating productive during the welding operation of a nickel-chromium-molybdenum type alloy characterized as dense, porous-free and homogenous. The flux composition incorporates defined amounts of molybdenum and tungsten, and there is obtained by practice of the invention weld metal of low carbon content and substantially improved physical properties.

Abstract: A cluster welding electrode assembly is provided which permits the deposition of maximum weights of weld metal with minimum amperage and voltage values. The assembly is comprised of a central rod electrode having circumferentially grouped or nested thereabout in longitudinally aligned relationship a plurality of lesser diameter rod electrodes. Each of the rods in the assembly carries thereon a novel flux coating productive during the welding operation of a nickel-chromium-molybdenum type alloy characterized as dense, porous-free and homogenous. Various means are disclosed for integrating the central rod electrode and surrounding lesser diameter rod electrodes into a unitary welding assembly.

Abstract: An electrode for and method of welding cast iron and the like metals utilizing a 99% nickel rod in the presence of an alloying flux containing large amounts (30 to 60%) of iron plus manganese and carbon to yield a weld metal having the general composition: Nickel 60-85%, Iron 15-40%, Manganese 1.5-5%, Carbon 1-3% and Silicon 0.25-2%. The flux is preferably present as a rod coating and comprises from about 40% to about 60% of the weight of the composite coated rod. The coated rod can be used in any generally excepted welding technique including the use of alternating current, direct current straight polarity or direct current reverse polarity welding operations.