Lincoln Electric Lincoln 7018AC-RSP Stick Electrodess are mild-steel, low-hydrogen electrodes that have a powdered-iron coating and can be used in steel structures, field erection, plants and rigs. Compatible with high-sulfur steels, low-alloy steels that can harden, high-tensile steels, medium and high carbon steels, cold-rolled steels and free-machining steels. Helps to eliminate the problems of cold restriking. General-purpose contact-type electrode is ideal for joining most hard-to-weld steels. Low open circuit voltage operation with limited spatter.