Welding rods, or welding electrodes, remain key components in welding. Electricity is run through a welding rod, creating an arc of live electricity at its tip and allowing for welding to take place. A variety of welding rods, including 6011 and 7018 rods, offer different features.
Metal Web News claims that 6011 welding rods are capable of producing welds that feature a 60,000 psi minimal tensile strength. The 7018 welding rods produce stronger welds that feature minimal tensile strengths of 70,000 psi.
Most welding rods are manufactured with a protective outer coating. According to Welding Tips & Tricks, 6011 welding rods are manufactured with an outer coating made of high cellulose sodium, compared to low hydrogen iron powder for 7018 welding rods.
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The 6011 welding rod is engineered for everyday, general welding applications. The 7018 welding rod is employed for applications that call for crack-resistant welds and exceptional weld quality. The 6011 rods are manufactured for operation under direct currents, while 7018 rods can be run under direct or alternating currents.