Abstract: A dual-torch welding system is disclosed. In one embodiment, the welding system includes a pair of torches positioned in an other than opposing arrangement to weld a substantially circular component therebetween, and a means for rotating the substantially circular component and the pair of torches relative to one another, allowing welding of the substantially circular component by the pair of torches.

Abstract: A dual-torch welding system is disclosed. In one embodiment, the welding system includes a pair of torches positioned in an other than opposing arrangement to weld a substantially circular component therebetween, and a means for rotating the substantially circular component and the pair of torches relative to one another, allowing welding of the substantially circular component by the pair of torches.

Abstract: A weld joint includes low and high alloy steel components. A weld bead between the low and high alloy steel components includes a first weld wire in contact with the low alloy steel component, a second weld wire in contact with the high alloy steel component, and a third weld wire between the first and second weld wires. The third weld wire has a higher percentage of chromium than the first weld wire and a lower percentage of chromium than the second weld wire. A method for welding includes applying a first weld wire to a low alloy steel component, applying a second weld wire to a high alloy steel component, and applying a third weld wire between the first and second weld wires. The third weld wire has a higher percentage of chromium than the first weld wire and a lower percentage of chromium than the second weld wire.

Abstract: Embodiments of the invention relate generally to welding methods and, more particularly, to methods for welding in a horizontal position and a joint structure suitable for such methods. In one embodiment, the invention provides a method of forming a welded joint between two components, the method comprising: aligning a first and second component to form a joint therebetween, the joint comprising: a protrusion of the first component, and a recess of the second component, wherein the protrusion and recess have complimentary shapes; orienting the first and second components such that a major axis of each is oriented vertically; and welding the first and second components at a substantially horizontally-oriented root opening, the substantially horizontally-oriented root opening positioned along the joint.