Welding electrodes are used in welding various metals in the fabrication ofequipment for chemical & Allied industries, construction of steel structures such asbridges, factory sheds, in the manufacture of ships, Vehicles and engineeringequipment. Mild steel is welded by electrodes to a maximum among all the metals &Alloys. Therefore M.S. Welding Electrode is the most widely used core wire. Besidesthis, special grade electrodes are being developed for specific applications. Welding electrodes comprise basically of steel core wire and coating ingredientsor flux mild steel core wires are used in majority of unalloyed steel electrodes. Besidesmild steel, nickel, Nickel-copper, Nickel irons are also used in MIG & TIG welding.Stainless steel wires are also used for welding in fertilizer, chemical & surgicalinstrument making industry. Coating ingredients are basically rutile, potassium silicate, sodium silicate and minerals like quartz, calcite and mica. Ferro-alloys are also used in the formulations of fluxes.
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Dasari Gopalarao (Apitco Limited)
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