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ARC Welding Rods
Mild Steel Welding Electrode -- The 6013 welding electrodes are very commonly used for general welding and fabrication works. They are good rods for welding such items as pipes, trailers, farm machinery and any sheet metal. Learn more about our mild steel welding rods
Low Hydrogen Welding Electrode -- 7018 is iron powder low-hydrogen carbon steel electrode with excellent mechanical properties and cracking-resistant. It can be welded in all positions with both AC and DC and reduces welding layer with iron powder in the coating and is widely used in ship building pipeline bridges, boilers, pressure vessels, restrained joint penstocks, blast furnace steel work, atomic reactor shell and pipework. Know more about our low hydrogen welding rods...
Stainless Steel Welding Rods
Stainless Steel Welding Electrode -- It is capable of depositing S.S. type of weld metal with normal content of carbon. The weld metal has excellent creep strength and radiographic quality. learn more types of our stainless steel welding electrodes...
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Cast Iron Welding Rods
Cast Iron Welding Electrode -- Used in pump casing, gear housing, engine blocks and valve bodies. More about our casting iron welding electrodes...
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- ENi-CI ENiFe-CI
Welding rods are basically electrodes attached to a power source used in arc welding. Arc welding is so named because the process uses electrodes that generate an arc between the welding electrode and the material to be welded, melting the metal in both to create a joint. An arc welder is a large AC transformer that converts electricity to a form that can be used to melt and bond mild steel.
The Circuit:
To weld something, the welder attaches a ground wire to whatever material or object is being welded and starts up the welding machine. The welding rod is clamped into a clip at the end of a power cable from the welder. The rod acts as an electrode. When you touch the electrode to the work, current arcs from the rod to the metal you are working on. The current then flows through the material being welded and back through the ground wire into the welding machine to complete the electrical circuit.
The Arc:
When you pull the rod back from the work a little, the current makes an arc between the rod and the metal. This arc is very hot, and heats the metal to a temperature at which the metal and the metal in the electrode melt together. As the rod passes over the area to be welded, a molten metal joint is created. It cools as the electrode moves on, bonding the joint where the electrode has passed.
Flux:
The welding rod has a chemical coating that acts as welding flux. Flux is a chemical compound that promotes the melting and bonding process. The flux is wrapped around a core of metal usually made of the same kind of metal that is being welded. The flux helps shield the work from stray arcing and provides a steadier arc by acting as a bridge for the current to pass through. The chemicals in the flux coating react as the current arcs through the electrode to clean and cool the weld. As the flux melts, it also adds alloy materials to strengthen the molten material in the weld.
Size:
Welding rods range in size depending upon the size of the joint--larger rods for larger joints. As the rod melts in the arc, the flux forms a layer of slag waste material over the joint. When the weld is complete, the welder chips away the slag with a hammer.
Types:
Different types of rods are made for specific metals like cast iron, stainless steel, copper, high tensile steel, bronze, brass or mild steel. Choosing the wrong rod for the job can create a weld so weak it will shatter under pressure.
